JP2012222699A - Display control system, posture detection glasses, control program and recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display control system which is capable of improving a degree of freedom on video expression of a two-dimensional video.SOLUTION: A display control system 1 includes: a display device 10 displaying the video; and glasses 20 which can be worn on the face of a viewer. The glasses 20 include: a posture detecting section 22 detecting the posture of the glasses 20; and a posture signal output section 24 outputting a detection result of the posture detecting section 22 to the display device 10 as a posture signal. The display device 10 includes: a display section 13 displaying the video; a posture signal reception section 11 receiving the posture signal; and a posture change section 12 changing the posture of the video based on the posture signal which the posture signal reception section 11 receives.

Description

  The present invention relates to a display control system for viewing video, posture detection glasses, a control program, and a recording medium.

  In recent years, research on methods for viewing 3D video other than 2D video has become active. To view 3D video, for example, display the left-eye video and right-eye video dedicated to 3D video separately, and display two videos with polarized glasses, shutter glasses, etc. It is necessary to visualize with. For example, in the case of shutter glasses, it is necessary to control the opening and closing of the right eye shutter and the left eye shutter of the glasses in accordance with the output timing of the right eye video and the left eye video output alternately from the display device. When the shutter glasses receive the right-eye video, control is performed so that the right-eye shutter is opened and the left-eye shutter is closed while the right-eye video is being received. As a result, the right-eye video can be viewed only by the right eye and the left-eye video can be viewed only by the left eye, and the viewer can obtain a stereoscopic effect intended by the producer of the three-dimensional video.

  Techniques have been proposed in which such a 3D video viewing system is applied to 2D video viewing (Patent Documents 1 and 2).

  Patent Document 1 discloses a video display device in which a plurality of videos are displayed on one screen without losing the size, and a plurality of persons watch different videos at the same time. In this video display device, shutter glasses that open and close the field of view of the left and right eyes in synchronization with the video signal displayed on the screen are used, and N video signals are periodically displayed on the same screen. When one of the N video signals displayed on the screen is divided and selected, the shutter glasses are opened and closed according to the cycle of the selected video signal.

  In addition, in Patent Document 2, in the stereoscopic glasses for viewing a stereoscopic image, in addition to the function of allowing only one of the two screen displays to be viewed, it is possible to select a projected image and to output the audio of the selected image. An eyeglass device is disclosed. In this glasses apparatus, two separate video signals are displayed on the stereoscopic video glasses instead of the stereoscopic video viewed from the left and right eyes, and when the video signals of the two programs are selected, It is possible to view only one of the programs, and the sound of the selected program is output from the headphones.

Japanese Patent Laid-Open No. 10-240212 (published on September 11, 1998) JP 10-243420 A (published on September 11, 1998)

  The technologies of Patent Documents 1 and 2 above apply 3D video viewing technology to 2D video viewing. However, when displaying 2D video, only the 2D video is displayed on the screen. There is a drawback that there is less realism than 3D video. For this reason, in order to improve the realistic sensation of 2D video, a technology for improving the degree of freedom of video representation of 2D video (that is, a technology for changing the appearance of 2D video according to the posture of the viewer's face) Is required.

  On the other hand, in Patent Documents 1 and 2, since the posture of the image is not changed according to the posture of the viewer's face, when the posture of the viewer changes (for example, when the face is tilted sideways), the viewer However, there is a problem that the visibility of the viewer is lowered because the video is viewed in a tilted state. This problem can be solved by applying the above-described technology for improving the degree of freedom of video expression.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a display control system, posture detection glasses, a control program, and a recording medium that can improve the degree of freedom of video representation of a two-dimensional image. There is.

  In order to solve the above-described problems, a display control system according to the present invention includes a display device that displays an image and glasses that can be worn on the face of a viewer, and the glasses detect the posture of the glasses. Posture detection means, and first output means for outputting the detection result of the posture detection means as a posture signal to the display device. The display device displays a display unit for displaying the video, and the posture signal. It is characterized by comprising first receiving means for receiving and posture changing means for changing the posture of the video based on the posture signal received by the first receiving means.

  According to the above configuration, when the glasses are attached to the face of the viewer and the posture of the viewer (for example, the orientation of the face and / or the tilt of the face) changes, the posture of the glasses changes with the change. The posture of the glasses is detected by the posture detection means. That is, the posture detection means detects the posture of the viewer's face. The detection result of the attitude detection means is output from the first output means to the display device as an attitude signal.

  On the other hand, in the display device, the attitude signal is received by the first receiving means, and the attitude of the video is changed by the attitude changing means based on the attitude signal received by the first receiving means. That is, in the display device, the posture of the image is changed according to the posture of the glasses (and thus the posture of the viewer's face).

  Therefore, according to the above configuration, since the posture of the video is changed according to the posture of the face of the viewer, it is possible to change the appearance of the video according to the posture of the face for the viewer. That is, the degree of freedom of video expression can be increased.

  Further, the posture detection glasses according to the present invention are posture detection glasses that can be worn on a user's face, the posture detection means for detecting the posture of the posture detection glasses, and the detection result of the posture detection means. Output means for outputting to the outside as a posture signal.

  According to the above configuration, since the posture detection means for detecting the posture of the posture detection glasses and the output means for outputting the detection result of the posture detection means to the outside as a posture signal, it can be used in the display control system. Can provide glasses.

  Further, in the display control system according to the present invention, the posture detection means detects the posture of the glasses around the axis along the front-rear direction of the glasses, and the posture change means is based on the posture signal, It is desirable to change the posture of the image by rotating the image around an axis along the normal line of the image surface of the image.

  According to the above configuration, the posture detection unit detects the posture (that is, the inclination) of the glasses around the axis along the front-rear direction of the glasses. Therefore, the posture signal output from the posture detection unit includes the front-rear direction of the glasses. The information about the inclination of the glasses around the axis is included. On the other hand, the posture changing means rotates (i.e., tilts) the image around the axis along the normal line of the image plane based on the posture signal, so that the inclination of the glasses around the axis along the front-rear direction of the glasses Accordingly, the image displayed on the display unit can be tilted around the axis along the normal line of the image surface.

  Further, in the display control system according to the present invention, the posture detection means detects the posture of the glasses around an axis along the left-right direction of the glasses, and the posture change means is based on the posture signal, It is desirable to change the posture of the video by rotating the video around an axis along the horizontal direction of the video screen.

  According to the above configuration, the posture detection means detects the posture (that is, the tilt) of the glasses around the axis along the left-right direction of the glasses, so the posture signal output from the posture detection means includes the left-right direction of the glasses. The information about the inclination of the glasses around the axis is included. On the other hand, the posture changing means rotates (i.e., tilts) the image around the axis along the left-right direction of the image plane based on the posture signal, so that the inclination of the glasses around the axis along the left-right direction of the glasses Accordingly, the video displayed on the display unit can be tilted around an axis along the horizontal direction of the video screen.

  Further, in the display control system according to the present invention, the posture detecting means detects the posture of the glasses around the axis along the vertical direction of the glasses, and the posture changing means is based on the posture signal, It is desirable to change the posture of the video by rotating the video around an axis along the vertical direction of the video screen.

  According to the above configuration, since the posture detection means detects the posture (that is, shake) of the glasses around the axis along the vertical direction of the glasses, the posture signal output from the posture detection means includes the vertical direction of the glasses. Contains information about the movement of the glasses around the axis. On the other hand, the posture changing means rotates (i.e., shakes) the image around the axis along the vertical direction of the image plane of the image based on the posture signal, so that the glasses shake around the axis along the vertical direction of the glasses. Accordingly, the video displayed on the display unit can be swung around the axis along the vertical direction of the video screen.

  In the display control system according to the present invention, it is desirable that the posture changing means rotate the image in the same rotation direction as the rotation direction of the posture change of the glasses.

  According to said structure, the rotation direction of rotation of an image | video is the same rotation direction as the rotation direction of the attitude | position change of glasses. Specifically, when the rotation direction of the eyeglass posture change is counterclockwise, the image is rotated counterclockwise, and when the rotation direction of the eyeglass posture change is clockwise, the image is rotated clockwise. The

  Thereby, for example, when a viewer wearing glasses turns to the left side, the video is directed to the right side as viewed from the viewer. Also, when the viewer wearing glasses turns downward, the video is directed upward. When a viewer wearing glasses tilts his face to the left, the image is tilted counterclockwise around the normal of the image plane.

  Accordingly, since the posture of the video is changed so as not to be inclined with respect to the viewer according to the posture of the viewer wearing the glasses, the visibility of the viewer's video is improved.

  In the display control system according to the present invention, it is preferable that the posture changing means is rotated so that the rotation angle of the video image substantially matches the rotation angle of the glasses.

  As a result, even if the posture of the viewer's face changes, it is possible to minimize the change in the posture of the video viewed by the viewer, and the visibility by the viewer is improved.

  In the display control system according to the present invention, the posture changing means may be configured such that the rotation amount of the image is substantially parallel to the front-rear direction axis of the glasses and the front-rear direction axis of the images, and It is preferable that the direction axis and the horizontal axis of the image are substantially parallel, and that the vertical axis of the glasses and the vertical axis of the image are approximately parallel.

  As a result, the face of the viewer and the front of the video are substantially parallel, and the straight line connecting the eyes of the viewer and the horizontal direction of the video are substantially parallel, thereby improving visibility by the viewer.

  Further, in the display control system according to the present invention, it is desirable that the posture changing means obtains the change rate of the posture of the glasses based on the posture signal, and the posture of the video is greatly changed as the change rate increases. .

  According to said structure, the attitude | position of an image | video is changed largely, so that the change speed of the attitude | position of glasses is large. Therefore, the faster the posture of the viewer is changed, the larger the amount of change in the posture of the video, so that the realism of the video can be improved.

  In the display control system according to the present invention, it is desirable that the posture changing means changes the posture of the video by image processing.

  According to the above configuration, since the posture of the video is changed by image processing, the posture of the video can be changed at low cost.

  Further, in the display control system according to the present invention, the posture changing unit includes a support mechanism that supports the display unit so that the posture of the display unit can be changed, a driving unit that drives the support mechanism, It is desirable to include first control means for changing the attitude of the video by changing the attitude of the display unit by drivingly controlling the support mechanism via a driving means.

  According to said structure, the attitude | position of an image | video is changed by changing the attitude | position of the display part on which an image | video is displayed. That is, since the posture of the image is changed in the real space, the visibility of the image after the posture change is good.

  In the display control system according to the present invention, there are a plurality of the glasses, and either the display device or the glasses selects one of the plurality of glasses that is a target for changing the posture of the image. It is preferable that the apparatus further includes a selecting unit, and the posture changing unit changes the posture of the video based on the posture signal of the glasses selected by the selecting unit received by the first receiving unit.

  According to the above configuration, either the display device or the glasses further includes a selection unit that selects one of the plurality of glasses that is a target of a posture change of the image, and the posture change unit includes the above-described posture change unit, The posture of the image is changed based on the posture signal of the glasses selected by the selection unit received by the first reception unit.

  Thereby, when there are a plurality of viewers, it becomes possible to select a target viewer for changing the posture of the image, and one viewer selected from the plurality of viewers wearing glasses. When the face is tilted, the posture of the video that the viewer appreciates can be changed according to the tilt.

  The display control system according to the present invention includes a plurality of the glasses, and each of the glasses has an opening / closing unit that opens and closes a field of view of the glasses, and a second receiving unit that receives a switching signal from the display device. And a second control means for controlling the opening / closing operation of the opening / closing means based on the switching signal, wherein the display device or each of the glasses is an image displayed on the display unit from the plurality of glasses. Selection means for selecting glasses for which the posture is to be changed, and the display device is a selection number detection means for detecting a selection number that is the number of the glasses selected by the selection means, and the selection number detection. Time division means for time-dividing each frame of the video into a plurality of sub-frames based on the number of selections detected by the means, and the glasses selected by the selection means include the plurality of sub-frames. Association means for associating the plurality of glasses with the plurality of sub-frames so as to correspond to different sub-frames of the machine, wherein the posture changing means is associated with the glasses selected by the selection means It is desirable to change the posture of the video image shown in the sub frame based on the posture of the glasses.

  According to the above configuration, when there are a plurality of viewers, a viewer who is a target of the posture change of the displayed video can be selected from the plurality of viewers by the selection unit.

  Further, in the display control system according to the present invention, when the detection result of the selection number detection unit is the same as the total number of the glasses, the time division unit is configured so that each frame of the video is the same as the total number of the glasses. The correspondence means associates each of the glasses whose posture has changed with the same number of sub-frames on a one-to-one basis, and the selection number detection means has more than one detection result and If the first number is less than the total number of glasses, each frame of the video is time-divided into a second number of sub-frames, one more than the first number, and the association means Each of the glasses not selected as a target is made to correspond to one common sub-frame among the second number of sub-frames, and each of the glasses selected as a posture change target is matched with the second number of sub-frames. To the remaining sub-frames With corresponding paired 1, when the detection result of the selected speed detecting means is zero, it is desirable not to split during each frame of the video.

  According to the above configuration, when the detection result of the selection number detecting means is the same as the total number of glasses, the time division means time-divides each frame of the video into the same number of sub-frames as the total number of glasses. The means associates each of the glasses selected as the posture change target with the same number of sub-frames on a one-to-one basis. Therefore, when the detection result of the selection number detection means is the same as the total number of glasses, it is possible to associate each glasses selected as a posture change target with a different sub-frame.

  Further, when the detection result of the selection number detection means is a first number that is greater than one and less than the total number of glasses, the time division means causes the second number of each frame of the video to be one greater than the above number. Each pair of glasses that are time-divided into a number of sub-frames and that are not selected as posture change targets correspond to one common sub-frame of the second number of sub-frames, and are selected as posture change targets Is made to correspond to the remaining sub-frames of the second number of sub-frames on a one-to-one basis.

  Therefore, when the detection result of the selection number detecting means is the first number, it is possible to associate each pair of glasses with each sub-frame so that each pair of glasses selected as a posture change target is associated with a different sub-frame. it can. In particular, since each pair of glasses that are not selected as the posture change target is associated with a common sub-frame, the number of time divisions can be minimized.

  Further, when the detection result of the selection number detecting means is zero, each frame of the video is not time-divided. That is, each frame of the video is time-divided only when the detection result of the selection number detection means is not zero (that is, when there is at least one pair of glasses selected as a posture change target). That is, time division is performed only when time division is necessary. Normally, if the number of time divisions is large, the viewer can easily feel flicker (flickering of the video), so it is desirable that the number of time divisions of the frame video is small. Therefore, since time division is performed only when time division is necessary, it is possible to prevent a viewer's visibility from being lowered.

  The display control system according to the present invention includes a plurality of the glasses, and each of the glasses has an opening / closing unit that opens and closes a field of view of the glasses, and a second receiving unit that receives a switching signal from the display device. And a second control means for controlling the opening / closing operation of the opening / closing means based on the switching signal, wherein the display device changes its attitude based on the attitude signal received by the first receiving means. A change number detecting means for detecting the number of glasses, and a time division means for time-dividing each frame of the video into a plurality of sub-frames when the detection result of the change number detecting means is one or more, Correspondence means for associating the plurality of glasses with the plurality of sub-frames so that each of the glasses whose postures are changing corresponds to a different sub-frame of the plurality of sub-frames, The posture changing means changes the posture of the video image shown in the sub-frame associated with the glasses whose posture is changing based on the posture of the glasses, and the display device displays the display unit displayed on the display unit. A switching signal generating unit that generates the switching signal for the glasses so that only the field of view of the glasses associated with the sub-frame is opened, and a second that outputs the switching signal to the second receiving unit of the glasses. It is desirable to further include output means.

  According to said structure, each spectacles controls the opening / closing means which opens / closes the visual field of the said spectacles, the 2nd receiving means which receives the switching signal from a display apparatus, and the opening / closing operation | movement of an opening / closing means based on a switching signal And a second control means. Therefore, each glasses can switch opening and closing of the field of view of the glasses according to a switching signal from the display device.

  On the other hand, when the display device has one or more change number detection means for detecting the number of the glasses whose posture has changed based on the posture signal received by the first reception means, and the detection result of the change number detection means is one or more, There is further provided time division means for time-dividing each frame of the video into a plurality of sub-frames. Therefore, the display device time-divides each frame of the video into a plurality of sub-frames when the posture of at least one pair of glasses changes.

  The correspondence means associates the plurality of glasses with the plurality of frames so that each of the glasses whose posture has changed corresponds to a different sub-frame of the plurality of sub-frames, and the posture change means includes: Based on the association, the posture of the image shown in the sub-frame corresponding to the glasses whose posture is changing is changed based on the posture of the glasses. Thereby, it is possible to include sub-frames in which the posture of the video is changed based on the posture of the corresponding glasses among the plurality of time-divided sub-frames.

  Therefore, according to the above configuration, when the face of, for example, one viewer among a plurality of viewers wearing glasses is tilted, only the posture of the image viewed by the viewer is changed according to the tilt. be able to.

  Further, in the display control system according to the present invention, when the detection result of the number-of-changes detection unit is the same as the total number of the glasses, the time division unit sets each frame of the video to the same number as the total number of the glasses. The correspondence means associates each of the glasses whose posture has changed with the same number of sub-frames on a one-to-one basis, and the number of change detection means has more than one detection result and If the first number is less than the total number of glasses, each frame of the video is time-divided into a second number of sub-frames, one more than the first number, and the associating means changes its posture Each of the glasses that has not been associated with one common sub-frame of the second number of sub-frames, and each of the glasses whose posture has changed is used as the remaining sub-frame of the second number of sub-frames. One-to-one correspondence, the number of changes detected When the step detection result is zero, each frame of the video is not time-divided, and when the detection result of the change number detection unit is zero, the switching signal generation means It is desirable to generate the switching signal so that is opened.

  According to the above configuration, when the detection result of the change number detection means is the same as the total number of glasses, the time division means time-divides each frame of the video into the same number of sub-frames as the total number of glasses. The means associates each of the glasses whose postures are changed with the same number of sub-frames in a one-to-one correspondence. Therefore, when the detection result of the change number detection means is the same as the total number of glasses, each tilted glasses can be associated with a different sub-frame.

  Further, when the detection result of the change number detection means is a first number that is greater than one and less than the total number of glasses, the time division means causes the second of the video frames to be one more than the above number. Each of the glasses that is time-divided into a number of sub-frames and whose posture is not changed by the posture changing means corresponds to one common sub-frame of the second number of sub-frames, and each of the glasses whose posture has changed is One-to-one correspondence is made to the remaining sub-frames among the two sub-frames.

  Therefore, when the detection result of the change number detection means is the first number, it is possible to associate each pair of glasses with each sub-frame so that each pair of glasses whose posture changes is associated with a different sub-frame. In particular, each pair of glasses whose posture has not changed can be associated with a common sub-frame, so that the number of time divisions can be minimized.

  Further, when the detection result of the change number detection means is zero, each frame of the video is not time-divided. That is, only when the detection result of the change number detecting means is not zero (that is, when there is at least one pair of glasses whose posture has changed), each frame of the video is time-divided. That is, time division is performed only when time division is necessary. Normally, if the number of time divisions is large, the viewer can easily feel flicker (flickering of the video), so it is desirable that the number of time divisions of the frame video is small. Therefore, since time division is performed only when time division is necessary, it is possible to prevent a viewer's visibility from being lowered.

  In the display control system according to the present invention, the display device outputs the switching signal for each pair of glasses so that only the field of view of the glasses associated with the sub-frame displayed on the display unit is opened. A switching signal generating means for generating; and a second output means for outputting the switching signals to the second receiving means of the glasses. When the frames of the video are not time-divided, Preferably, the switching signal generating means generates the switching signal so that the field of view of all the glasses is opened.

  According to the above configuration, the viewer can change the posture of the video that the viewer appreciates according to the change in the posture of the face.

  In the display control system according to the present invention, the display device generates the switching signal that is the switching signal common to the glasses and indicates the timing at which the plurality of sub-frames are displayed on the display unit. Signal generating means, and second output means for outputting the switching signal to the second receiving means of each of the glasses, wherein each of the glasses is to be switched to which of the plurality of sub-frames. A switching selection means for selecting, and the second control means, based on the switching signal, opens and closes the glasses so that the glasses are opened only when the image of the sub-frame selected by the upper switching selection means is displayed. Control means, and when each frame of the video is not time-divided, the switching signal generation means generates the switching signal so that the field of view of all the glasses is opened. Desirable.

  According to the above configuration, since the display device only needs to output one type of switching signal, the configuration of the display device can be simplified. The sub-frames that can be viewed with each pair of glasses can be selected by the selection means. As a result, each viewer can select and view an image according to the inclination of his / her face, and can selectively view an image inclined according to the face of another person.

  Further, the posture detection glasses according to the present invention are based on the opening / closing means for opening and closing the field of view of the posture detection glasses, the receiving means for receiving a switching signal from the outside, and the switching signal received by the receiving means. It is desirable to further comprise control means for controlling the opening / closing operation of the opening / closing means.

  According to the above configuration, the opening / closing means for opening / closing the field of view of the posture detection glasses, the receiving means for receiving a switching signal from the outside, and the opening / closing of the opening / closing means based on the switching signal received by the receiving means Since it further comprises a control means for controlling the operation, it is possible to provide glasses that can be used in the display control system.

  Furthermore, a control program for operating the display control system described above, the control program for causing the computer to function as each of the above-described means, and a computer-readable recording medium storing the control program are also included in the present invention. Included in the technical scope. Further, a control program for operating the above-described posture detection glasses, a control program for causing a computer to function as each of the above-described means, and a computer-readable recording medium storing the control program are also included in the present invention. Is included in the technical scope.

  According to the control program, the display control system or the posture detection glasses can be realized on the computer by realizing the above means by the computer. Further, according to the recording medium, the control program read from the recording medium can be realized on a general-purpose computer.

  As described above, the display control system according to the present invention includes the display device that displays the image and the glasses that can be worn on the face of the viewer, and the glasses detect the posture of the glasses. And a first output means for outputting the detection result of the attitude detection means as an attitude signal to the display device, wherein the display apparatus displays a display unit for displaying the video and a first for receiving the attitude signal. Receiving means; and attitude changing means for changing the attitude of the video based on the attitude signal received by the first receiving means.

  Further, the posture detection glasses according to the present invention are posture detection glasses that can be worn on the face of the viewer, the posture detection means for detecting the posture of the posture detection glasses, and the detection result of the posture detection means. Output means for outputting to the outside as a posture signal.

  Therefore, since the posture of the video is changed according to the posture of the face of the viewer, the appearance of the video can be changed according to the posture of the face for the viewer. That is, there is an effect that the degree of freedom of video expression can be increased.

1 is a schematic configuration diagram of a display control system according to Embodiment 1 of the present invention. It is a figure explaining the structure of a spectacles main body. It is a figure explaining the relationship between the posture of the glasses and the posture of the viewer's face, (a) shows the above relationship when the face is not inclined around the axis Q1 along the front-back direction of the face, (b ) Is a diagram showing the relationship when the face is tilted around the axis Q1. It is a figure explaining the attitude | position of the image | video displayed on the display part, (a) is a figure which showed the state in which the image | video is not inclined with respect to a display screen, (b) is a figure with respect to a display screen. It is the figure which showed the state which tilted around the center of the image surface. It is the figure which showed the state which reduced and displayed the image | video in FIG.4 (b). It is the figure which showed the display part in case a display screen is a square. It is the figure which showed the display part in case a display screen is circular. It is a figure explaining the relationship between the posture of the glasses and the posture of the viewer's face, (a) shows the above relationship when the face is not inclined around the axis Q2 along the left-right direction of the face, ) Is a diagram showing the relationship when the face is tilted around the axis Q2. It is the figure which showed the state which the attitude | position of the image | video displayed on the display part inclines around the axis | shaft Q5 along the left-right direction of the image surface of an image | video. It is a figure explaining the relationship between the attitude | position of glasses, and the attitude | position of a viewer's face, (a) shows the said relationship in case the face does not shake around the axis | shaft Q3 along the up-down direction of a face, (b ) Is a diagram showing the relationship when the face swings around the axis Q3. It is the figure which showed the state which the attitude | position of the image | video displayed on the display part inclines around the axis | shaft Q6 along the up-down direction of the image surface of an image | video. It is the structure schematic of the display control system which concerns on Embodiment 2 of this invention. (A) is the figure which showed the state which the attitude | position of a display part does not incline around the axis | shaft Q7 along the front-back direction of a display part, (b) is a figure with the attitude | position of a display part about the axis | shaft Q7 of a display part. It is the figure which showed the state which inclined. It is a figure explaining the relationship between the inclination of the face around the axis | shaft Q2 along the left-right direction of a viewer's face, and the inclination of the display part around the axis | shaft Q9 along the left-right direction of a display part. It is a figure explaining the relationship between the shake of the face around the axis Q3 along the vertical direction of the viewer's face and the shake of the display unit around the axis Q10 along the vertical direction of the display unit. It is a structure schematic of the display control system which concerns on Embodiment 3 of this invention. It is the structure schematic of the display control system which concerns on the modification of Embodiment 3 of this invention. It is a structure schematic of the display control system which concerns on Embodiment 4 of this invention. It is a figure explaining operation | movement of the display control system which concerns on Embodiment 4 of this invention. It is the structure schematic of the display control system which concerns on the modification of Embodiment 4 of this invention. It is a schematic diagram for demonstrating the detection method of the inclination amount using an acceleration sensor, (a) shows a coordinate system, (b) to (d) is the case where a uniaxial acceleration sensor is used, respectively. Shows the basic posture, the rotation of the glasses around the axis along the front-rear direction of the glasses, and the state of the rotation of the glasses around the axis along the left-right direction of the glasses. (E) to (g) When used, the basic posture, the rotation of the glasses around the axis along the front-rear direction of the glasses, and the state of the rotation of the glasses around the axis along the left-right direction of the glasses are shown.

[Embodiment 1]
The display control system according to Embodiment 1 of the present invention will be described below with reference to FIGS.

(Configuration of display control system)
The display control system 1 according to the present embodiment changes the posture of the video according to the posture of the viewer's face, and as shown in FIG. 1, the display device 10 for displaying the video and the face of the viewer. And eyeglasses (posture detection glasses) 20 that can be attached to the camera.

  In the following, when the viewer's face is tilted about an axis along the front-rear direction of the face, the video displayed on the display device 10 is along the front-rear direction of the video according to the tilt of the face An example will be described in which an image is displayed around an axis (that is, an axis along the normal direction of the image plane) in the same rotation direction as the inclination of the viewer's face.

(Composition of glasses)
The glasses 20 have a function of detecting the posture of the face of the viewer wearing the glasses 20. As shown in FIG. 1, the glasses 20 include a glasses main body 21, a posture detection unit (posture detection unit) 22, a posture signal output unit (first output unit) 24, and an operation unit 25.

  Note that the posture detection unit 22, the posture signal output unit 24, and the operation unit 25 are disposed in the glasses main body 21 (more specifically, a frame unit 21a or a handle 21bL / 21bR described later).

  As shown in FIG. 2, the glasses body 21 includes a frame portion 21a and patterns 21bL and 21bR connected to both sides of the frame portion 21a. A left-eye opening 21cL and a right-eye opening 21cR are provided on the left and right sides of the front surface of the frame portion 21a, respectively, for ensuring the visibility of the left and right eyes of the viewer wearing the glasses body 21.

  The posture detection unit 22 detects the posture of the face of the viewer wearing the glasses 20 by detecting the posture of the glasses main body 21 (that is, the posture of the glasses 20). Here, the posture detection unit 22 detects the inclination of the glasses 20 about the axis along the front-rear direction of the glasses 20, thereby detecting the inclination of the viewer's face about the axis along the front-rear direction of the face. To detect. Note that the posture detection unit 22 includes, for example, an acceleration sensor or a gyro sensor.

  FIG. 3 is a diagram showing the relationship between the posture of the glasses 20 and the posture of the viewer's face P, and FIG. 3 (a) shows the view around the axis Q1 along which the viewer's face P extends in the front-rear direction of the face P. FIG. 3B shows the above relationship when the viewer's face P is tilted about the axis Q1.

  In FIG. 3A, the viewer's face P is not inclined about the axis Q1 along the front-rear direction H3 of the face P. That is, the left-right direction of the face P (that is, the direction in which the viewer's left and right eyes are arranged) H1 substantially matches the horizontal direction H10. Since the left-right direction (that is, the direction in which the openings 21cL and 21cR are arranged) H2 and the front-rear direction H4 of the glasses 20 match the left-right direction H1 and the front-rear direction H3 of the viewer's face P, respectively. It is not inclined around the axis Q1 along the front-rear direction H4. In this manner, the posture of the viewer's face P around the axis Q1 and the posture of the glasses 20 around the axis Q1 are the same. In this state, the posture detection unit 22 detects that the inclination of the glasses 20 around the axis Q1 (here, the inclination from the horizontal direction 10) is 0 degrees (that is, the glasses 20 is not inclined around the axis Q1). Thus, it is detected that the inclination of the viewer's face P around the axis Q1 is 0 degree (that is, the viewer's face P is not inclined around the axis Q1).

  FIG. 3B shows a state in which the face P of the viewer is inclined at an angle θ around the axis Q1 from the state of FIG. That is, the left-right direction H1 of the viewer's face P is inclined by an angle θ from the horizontal direction H10. Since the left-right direction H2 and the front-rear direction H4 of the glasses 20 respectively match the left-right direction H1 and the front-rear direction H3 of the viewer's face P, the glasses 20 are also inclined by the angle θ about the axis Q1 in the same rotational direction as the face P. ing. In this state, the posture detection unit 22 detects that the inclination around the axis Q1 of the glasses 20 is the angle θ, thereby detecting that the inclination around the axis Q1 of the face P of the viewer is the angle θ. .

  Thus, if the posture of the viewer's face P changes by the angle θ around the axis Q1, the posture of the glasses 20 also changes by the angle θ around the axis Q1 in the same rotational direction as the face P. Therefore, by detecting the posture of the glasses 20 around the axis Q1, the posture of the viewer's face P around the axis Q1 can be detected.

  The attitude signal output unit 24 outputs the detection result from the attitude detection unit 22 to the later-described attitude signal reception unit 11 of the display device 10 as an attitude signal S1. The attitude signal output unit 24 is composed of, for example, an infrared light emitting element capable of outputting infrared rays, or a semiconductor element such as a light emitting diode or a semiconductor laser, and converts the attitude signal S1 into a radio signal such as infrared rays and outputs the signal.

  In this embodiment, posture signal output unit 24 and posture signal receiving unit 11 are connected by wireless communication, but may be connected by wire.

  The operation unit 25 receives a viewer's operation such as a power on / off switching instruction of the glasses 20.

(Configuration of display device)
The display device 10 displays a video and changes the posture of the video based on a posture signal S1 output from the glasses 20. As shown in FIG. 1, the display device 10 includes a posture signal receiving unit 11 (first receiving unit), a posture changing unit 12 (posture changing unit), a display unit 13, and a video output control unit 17. .

  The posture signal receiving unit 11 receives the posture signal S <b> 1 output from the glasses 20. The attitude signal receiving unit 11 includes, for example, an infrared light receiving element capable of receiving infrared rays, or a semiconductor element capable of receiving an optical signal (radio signal) from a light emitting diode or a semiconductor laser, and receives an attitude signal S1 which is a radio signal. The signal is converted into a signal (for example, a digital signal) that can be processed by the posture changing unit 12 and output to the posture changing unit 12.

  The video output control unit 17 receives an externally supplied video signal S2, converts the video signal S2 into an image signal that can be displayed on the display unit 13, and outputs the image signal to the display unit 13. In addition, as described later, the video output control unit 17 performs image processing on the image signal so that the video displayed on the display unit 13 is tilted in accordance with the control of the posture changing unit 12, and outputs the image signal. The image signal is output to the display unit 13 without performing image processing on the image signal so that the image displayed on the display unit 13 is not tilted.

  Note that the video signal S2 may be supplied by, for example, terrestrial broadcasting, or may be supplied from an external recording / reproducing apparatus, or real-time broadcasting or a movie using an IP (Internet Protocol) network. The content may be supplied using a service for distributing the content.

  The display unit 13 displays a video based on the image signal output from the video output control unit 17. The display unit 13 is configured by, for example, an LCD, PDP, CRT, or the like, and has, for example, a horizontally long rectangular display screen 13a as shown in FIG.

  The posture changing unit 12 changes the posture of the video displayed on the display unit 13 by image processing based on the posture signal S1 received by the posture signal receiving unit 11. Here, the posture changing unit 12 controls the video output control unit 17 to change the posture of the video displayed on the display unit 13 by image processing.

  More specifically, the posture changing unit 12 detects the inclination of the face P around the axis Q1 along the front-rear direction H3 of the viewer's face P based on the posture signal S1 from the posture signal receiving unit 11 (FIG. 3).

  If the viewer's face P is not tilted about the axis Q1 as shown in FIG. 3A as a result of the detection, the posture changing unit 12 controls the video output control unit 17 to As shown in FIG. 4A, the image D displayed on the display unit 13 is not tilted (that is, the horizontal direction x and the vertical direction y of the video screen are substantially the same as the horizontal direction u and the vertical direction v of the display screen 13a, respectively. The image signal is output to the display unit 13 so as to match.

  On the other hand, as a result of the above detection, when the viewer's face P is inclined about the axis Q1 by, for example, clockwise (in the direction of arrow R) as shown in FIG. The video output control unit 17 is controlled so that the video displayed on the display unit 13 can be viewed using the normal line at the center of the video screen as the rotation axis T as shown in the video D ′, as shown in FIG. The image signal is subjected to image processing and output to the display unit 13 so that the angle θ is inclined in the same rotational direction (for example, clockwise) as the inclination of the person's face P.

  In this way, the posture changing unit 12 changes the posture of the video displayed on the display unit 13 to the face P of the viewer around the rotation axis T perpendicular to the video surface, as shown by the video D ′ in FIG. Is tilted in the same angle θ and in the same rotation direction as the tilt around the axis Q1. Therefore, the posture around the rotation axis T of the video displayed on the display unit 13 always coincides with the posture around the axis Q1 of the face P of the viewer. Thereby, even if the viewer tilts the face P around the axis Q1, the viewer can view the video without tilting when viewed from the viewer.

  In the present embodiment, the image D ′ is tilted at the same angle as the tilt angle θ around the axis Q1 of the glasses 20, but it is not necessarily tilted at the same angle.

  As described above, according to the present embodiment, since the posture of the video is changed according to the posture of the viewer's face, the way of displaying the video can be changed according to the posture of the viewer's face. Therefore, the degree of freedom of video expression can be increased.

  In addition, the posture detection unit 22 detects the inclination of the glasses 20 around the axis Q1 along the front-rear direction of the glasses 20, and the posture change unit 12 displays the video image based on the detection result of the posture detection unit 22. Since the image is tilted about the vertical rotation axis T, the image displayed on the display unit 13 can be tilted about the axis along the normal direction of the image plane according to the tilt of the glasses 20 about the axis Q1. .

  Further, since the rotation direction of the image posture is the same as the rotation direction of the posture of the glasses 20, the image posture is not always inclined with respect to the viewer according to the posture of the viewer's face. Be changed. Thus, the visibility of the viewer's video can be improved.

  In this embodiment, the posture changing unit 12 indirectly changes the posture of the video displayed on the display unit 13 by controlling the video output control unit 17, but the posture changing unit 12 The posture of the video displayed on the display unit 13 may be changed by directly performing image processing on the video signal output from the video output control unit 17 to the display unit 13.

(Modification 1)
This modification 1 is a modification of the first embodiment.

  In the first embodiment, as shown in FIG. 4B, the image D ′ is merely tilted around the rotation axis T perpendicular to the image plane, and the size is not changed. Therefore, the peripheral portion of the video D ′ may be cut off from the display screen 13a due to the inclination of the video D ′ around the rotation axis T.

  Therefore, in this modification, for example, the video output control unit 17 reduces the size of the video D ′ by reducing the size of the video D ′ according to the inclination of the video D ′ around the rotation axis T as shown in FIG. The periphery of the video D ′ is prevented from being cut off from the display screen 13 a by the inclination around the rotation axis T.

  Thus, the peripheral portion of the video D ′ is prevented from being cut off from the display screen 13 a due to the inclination of the video D ′ around the rotation axis T, so that the visibility of the viewer for the video D ′ can be improved.

  In this modification, the video output control unit 17 reduces the size of the video D ′. However, when the posture changing unit 12 directly changes the posture of the video displayed on the display unit 13 by image processing. The posture changing unit 12 may reduce the size of the video D ′.

(Modification 2)
This modification 2 is a modification of the first embodiment.

  In the first embodiment, the shape of the display screen 13a of the display unit 13 is rectangular as shown in FIG. 4A, but is not limited to that. For example, the shape of the display screen 13a may be a square as shown in FIG. 6, or may be a circle as shown in FIG.

  In the case of a square, as shown in FIG. 6, when the image D ′ is tilted about the rotation axis T perpendicular to the image plane, the portion of the image D ′ that is cut off from the display screen 13a can be reduced. In the state where the image D ′ is rotated 90 degrees around the rotation axis T, the peripheral portion of the image D ′ can be prevented from being cut off from the display screen 13a. Note that an image D in FIG. 6 is an image when the posture is not tilted around the rotation axis T.

  Further, in the case of a circle, as shown in FIG. 7, it is possible to prevent the peripheral portion of the video D ′ from being cut off from the display screen 13a even if the video D ′ is tilted around the rotation axis T perpendicular to the video surface. . That is, the peripheral edge of the image D ′ is always prevented from being cut off from the display screen 13a regardless of the posture around the rotation axis T. In FIG. 7, the video D is a video when the posture is not tilted about the rotation axis T, and the video D ′ is a video when the posture is tilted 90 degrees about the rotation axis T.

(Modification 3)
This modification 3 is a modification of the first embodiment.

  In the first embodiment, the posture of the image D ′ is changed according to the posture of the viewer's face P around the axis Q1, but in this modified example, the posture around the axis along the left-right direction of the viewer's face is changed. The posture of the video is changed according to the posture of the face.

  As shown in FIG. 1, this modification is configured similarly except that the posture detection unit 22 and the posture change unit 12 are changed as follows in the first embodiment. Therefore, below, based on FIG. 1, the same component as Embodiment 1 is attached | subjected with the same code | symbol, description is abbreviate | omitted, and only a different component is demonstrated.

  The posture detection unit 22B according to this modification detects the inclination of the glasses 20 around the axis along the left-right direction of the glasses 20 (and thus the left-right direction of the viewer's face), thereby along the left-right direction of the viewer's face. The tilt of the viewer's face around the axis is detected.

  FIG. 8 is a diagram showing the relationship between the posture of the glasses 20 and the posture of the viewer's face P. FIG. 8A shows an axis (paper surface) along which the viewer's face P extends in the horizontal direction of the face P. FIG. 8B shows the relationship when the viewer's face P is tilted around the axis Q2. FIG. 8B shows the relationship when the viewer's face P is tilted around the axis Q2.

  In FIG. 8A, the viewer's face P is not inclined about the axis Q2 along the left-right direction H1 of the face P. That is, the front-rear direction H3 of the face P substantially coincides with the horizontal direction H11. Since the left-right direction (that is, the direction in which the openings 21cL and 21cR are arranged) H2 and the front-rear direction H4 of the glasses 20 match the left-right direction H1 and the front-rear direction H3 of the viewer's face P, respectively. It is not inclined around the axis Q2 along the left-right direction H2. Thus, the posture of the viewer's face P around the axis Q2 and the posture of the glasses 20 around the axis Q2 are the same. In this state, the posture detection unit 22B detects that the inclination of the glasses 20 around the axis Q2 is 0 degree (that is, that the glasses 20 are not inclined around the axis Q2), thereby It is detected that the inclination around the axis Q2 is 0 degree (that is, that the viewer's face P is not inclined around the axis Q2).

  FIG. 8B shows a state in which the viewer's face P is inclined at an angle φ around the axis Q2 from the state of FIG. That is, the front-rear direction H3 of the face P of the viewer is inclined by an angle φ from the horizontal direction H11. Since the left-right direction H2 and the front-rear direction H4 of the glasses 20 respectively coincide with the left-right direction H1 and the front-rear direction H4 of the viewer's face P, the glasses 20 are also inclined at an angle φ about the axis Q2 in the same rotational direction as the face P. ing. In this state, the posture detection unit 22B detects that the inclination of the eyeglass 20 around the axis Q2 is the angle φ, thereby detecting that the inclination of the viewer's face P around the axis Q2 is the angle φ. .

  Thus, if the posture of the viewer's face P changes by an angle φ around the axis Q2, the posture of the glasses 20 also changes by the angle φ around the axis Q2 in the same rotational direction as the face P. Therefore, by detecting the posture of the glasses 20 around the axis Q2, the posture of the viewer's face P around the axis Q2 can be detected.

  Based on the attitude signal S1 received by the attitude signal receiving unit 11, the attitude changing unit 12B of this modified example changes the attitude of the video displayed on the display unit 13 by image processing, as will be described later. Here, the posture changing unit 12B controls the video output control unit 17 based on the posture signal S1, thereby changing the posture of the video displayed on the display unit 13 by image processing.

  More specifically, the posture changing unit 12B detects the inclination of the face P around the axis Q2 along the horizontal direction H1 of the viewer's face P based on the posture signal S1 from the posture signal receiving unit 11 (FIG. 8).

  If the viewer's face P is not tilted about the axis Q2 as shown in FIG. 8A as a result of the above detection, the posture changing unit 12B controls the video output control unit 17 to As shown in FIG. 4A, the posture of the image D displayed on the display unit 13 is not inclined (that is, the horizontal direction x and the vertical direction y of the video screen are the horizontal direction u and the vertical direction v of the display screen 13a, respectively. The image signal is output and displayed on the display unit 13.

  On the other hand, as a result of the above determination, as shown in FIG. 8B, the viewer's face P is inclined at an angle φ, for example, clockwise (in the direction of the arrow R) when viewed from the viewer's right side about the axis Q2. The attitude changing unit 12 controls the video output control unit 17 so that the video displayed on the display unit 13 passes through, for example, the center T2 of the video screen as shown in FIG. With the axis Q5 along the left and right direction of “′ as the rotation axis, it appears to be inclined at the same angle φ in the same rotation direction as the inclination of the viewer's face P (ie, clockwise when viewed from the right side of the image D ′). The image signal is subjected to image processing and output to the display unit 13.

  In FIG. 9, the image processing is performed such that the upper side h1 of the video D ′ is displaced further to the back side of the screen than the upper side h2 of the video D when the posture is not tilted, and thus is shorter than the upper side h2. . Further, the lower side h3 of the video D 'is processed so that it is displaced to the front side of the screen from the lower side h4 of the video D, and thus is longer than the lower side h4. In addition, the vertical width d1 of the video D ′ is shorter than the vertical width d2 of the video D because the image processing is performed as if it was rotated about the axis Q5. As a result, the image D ′ in FIG. 9 has been subjected to image processing so that its outline becomes a trapezoid.

  In this way, the posture changing unit 12B converts the video displayed on the display unit 13 into the axis of the face P of the viewer around the axis Q5 along the left-right direction of the video screen as the video D ′ in FIG. Image processing is performed so that the image appears to be inclined at the same angle φ and the same rotation direction as the inclination around Q2. As a result, the posture around the axis Q5 of the image displayed on the display unit 13 virtually matches the posture around the axis Q2 of the viewer's face P. Therefore, the viewer tilts the face P around the axis Q2. However, it is possible to view the image in a state where the image is not tilted when viewed from the viewer.

  As described above, according to this modification, the posture detection unit 22B detects the inclination of the glasses 20 around the axis Q2 along the left-right direction of the glasses 20, and the posture change unit 12B detects the posture detection unit 22B. Based on the result, the image is processed so that the image appears to be tilted around the axis Q5 along the left-right direction of the image plane, so that the image is displayed on the display unit 13 according to the tilt of the glasses 20 around the axis Q2. The image can be artificially tilted around the axis Q5 along the left-right direction of the image surface.

  In addition, since the rotation direction of the image posture is the same as the rotation direction of the posture of the glasses 20, the image posture is not inclined with respect to the viewer in a pseudo manner according to the posture of the viewer's face. Will be changed. Thus, the visibility of the viewer's video can be improved.

(Modification 4)
This modification 4 is a modification of the first embodiment.

  In the first embodiment, the posture of the image is changed according to the posture of the viewer's face P around the axis Q1, but in this modification, the shake of the viewer's face P about the axis along the vertical direction is changed. The posture of the video is changed according to the above.

  As shown in FIG. 1, this modification is configured similarly except that the posture detection unit 22 and the posture change unit 12 are changed as follows in the first embodiment. Therefore, below, based on FIG. 1, the same component as Embodiment 1 is attached | subjected with the same code | symbol, description is abbreviate | omitted, and only a different component is demonstrated.

  The posture detection unit 22C according to this modified example detects the inclination of the glasses 20 around the axis along the vertical direction of the glasses 20 (and thus the vertical direction of the viewer's face), thereby along the vertical direction of the viewer's face. The tilt of the viewer's face around the axis is detected.

  FIG. 10 is a diagram showing the relationship between the posture of the glasses 20 and the posture of the viewer's face P. FIG. 10A shows an axis (the vertical axis H5 of the viewer's face P along the vertical direction H5). FIG. 10B shows the relationship when the viewer's face P swings around the axis Q3. FIG. 10B shows the relationship when the swing is not about the Q3 axis (perpendicular to the paper surface). 10A and 10B are views of the viewer's face P as viewed from above.

  In FIG. 10A, the viewer's face P faces a certain reference direction H12. That is, the front-rear direction H3 of the face P substantially matches the reference direction H12. Since the up-down direction H6 and the front-rear direction H4 of the glasses 20 substantially coincide with the up-down direction H5 and the front-rear direction H3 of the viewer's face P, respectively, the front-rear direction H4 of the glasses 20 also substantially coincides with the reference direction H12. In this way, the posture of the viewer's face P about the axis Q3 and the posture of the glasses 20 about the axis Q3 are the same.

  In this state, the posture detection unit 22C detects that the angle between the front-rear direction H4 of the glasses 20 and the reference direction H12 is 0 degrees (that is, the glasses 20 are not swung from the reference direction H12 around the axis Q3). Thus, it is detected that the face P of the viewer is not shaken from the reference direction H12 around the axis Q3.

  FIG. 10B shows a state in which the viewer's face P is swung, for example, clockwise around the axis Q3 from the state of FIG. 10A. In other words, the front-rear direction H3 of the viewer's face P is swung around the axis Q3 by an angle ψ, for example, clockwise from the reference direction H12. Since the up-and-down direction H6 and the front-and-rear direction H4 of the glasses 20 respectively correspond to the up-and-down direction H5 and the front-and-rear direction H3 of the viewer's face P, the glasses 20 also have an angle ψ around the axis Q3 in the same rotational direction as the face P. It is swinging.

  In this state, the posture detection unit 22C detects that the glasses 20 are swung, for example, clockwise by the angle ψ from the reference direction H12 around the axis Q3, so that the viewer's face P is around the axis Q3 in the reference direction. From H12, for example, it is detected that it is swung clockwise by an angle ψ.

  In this way, if the posture of the viewer's face P changes from the reference direction H12 about the axis Q3, the posture of the glasses 20 similarly changes from the reference direction H12 to the same rotational direction about the axis Q3. Therefore, by detecting the posture of the glasses 20 around the axis Q3, the posture of the viewer's face P around the axis Q3 can be detected.

  The reference direction H12 is set, for example, when the viewer wears the glasses 20 and faces the desired direction, and operates the operation unit 25 of the glasses 20 to reset the detection value of the posture detection unit 22C to zero. Is done. Thereby, the posture detection unit 22C detects a shake from the desired direction around the axis Q3. That is, the desired direction is set as the reference direction H12.

  In addition, although it is assumed that the reference direction H12 is set in a direction facing the display unit 13, it is not limited to this.

  Based on the posture signal S1 received by the posture signal receiving unit 11, the posture changing unit 12C of this modification changes the posture of the video displayed on the display unit 13 by image processing, as will be described later. Here, the posture changing unit 12C controls the video output control unit 17 based on the posture signal S1, thereby changing the posture of the video displayed on the display unit 13 by image processing.

  More specifically, the posture changing unit 12C detects a shake from the reference direction H12 around the axis Q3 in the face P of the viewer based on the posture signal S1 from the posture signal receiving unit 11.

  As a result of the above detection, when the viewer's face P is not shaken from the reference direction H12 around the axis Q3 as shown in FIG. 10A, the posture changing unit 12C controls the video output control unit 17. Then, as shown in FIG. 4A, the posture of the video D displayed on the display unit 13 is not tilted (that is, the vertical direction y and the horizontal direction x of the video D are respectively the vertical direction of the display screen 13a. The image signal is output to the display unit 13 so as to coincide with v and the left-right direction u).

  On the other hand, as a result of the above detection, if the viewer's face P is tilted at an angle ψ, for example, clockwise (in the direction of arrow R) as viewed from above, as shown in FIG. The unit 12C controls the video output control unit 17 so that, as shown in FIG. 11, the video displayed on the display unit 13 passes through, for example, the center T2 of the video surface like the video D ′ and the vertical direction of the video D ′ The image signal is subjected to image processing so as to appear to swing by the same angle ψ in the same rotation direction (for example, clockwise) as the shake of the viewer's face P, with the axis Q6 along the rotation axis as the rotation axis. Output.

  In FIG. 11, the left side h5 of the video D ′ is image-processed as if it is displaced to the back side of the screen from the left side h6 of the video D when the posture is not inclined, and thus is shorter than the left side h6. . Further, the right side h7 of the video D 'is processed so as to be displaced to the front side of the screen from the right side h8 of the video D, and thus is longer than the right side h8. Further, the left-right width d3 of the video D ′ is shorter than the left-right width d4 of the video D because the image processing is performed as if it was rotated about the axis Q6. As a result, the image D ′ of FIG. 11 is image-processed so that the outline thereof is a trapezoid whose left side h5 is the upper base and right side h7 is the lower base.

  In this way, the posture changing unit 12C moves the image of the viewer's face P around the axis Q6 along the vertical direction of the image plane as shown in the image D ′ of FIG. The image is processed so as to appear to swing in the same angle ψ and the same rotation direction. As a result, the posture around the axis Q6 of the image displayed on the display unit 13 virtually matches the posture around the axis Q3 of the face P of the viewer, so that the viewer can move the face P from the reference direction H12. Even if it is swung around Q3, it is possible to view the image in a state where the image is not shaken when viewed from the viewer.

  Further, since the rotation direction of the image posture is the same as the rotation direction of the posture of the glasses 20, the posture around the image axis Q6 is simulated in accordance with the posture around the viewer's face axis Q3. It is changed so that it is facing the person. Thus, the visibility of the viewer's video can be improved.

(Modification 5)
This modified example 5 is a modified example of the first embodiment.

  In the first embodiment, as shown in FIG. 4B, the posture around the axis T of the video D ′ is rotated by the same angle θ as the inclination around the axis Q1 of the viewer's face P. The posture around the axis T of the video D ′ is rotated more as the changing speed of the posture around the axis Q1 of the viewer's face P is faster.

  This modified example is configured similarly to the modified example 3 except that the posture changing unit 12 is different as follows. Hereinafter, description will be given based on FIG. 1 and FIG.

  The posture changing unit 12 of this modified example obtains the change rate of the posture around the axis Q1 along the front-rear direction of the glasses 20 based on the posture signal S1 received by the posture signal receiving unit 11, and the larger the change rate, the higher the change rate. The posture around the rotation axis T of the video D ′ displayed on the display unit 13 is greatly changed.

  Here, the posture changing unit 12 controls the video output control unit 17 so that the posture around the rotation axis T of the video D ′ displayed on the display unit 13 is greatly changed as the change speed increases.

  Thereby, for example, when the change amount of the posture of the glasses 20 around the axis Q1 is the same, the faster the change rate of the posture of the glasses 20 around the axis Q1, the greater the change amount of the posture of the video D ′ around the axis T. Become.

  In this way, as the viewer's face P tilts faster around the axis Q1, the posture of the video D 'is tilted more greatly around the rotation axis T, so that the realism of the video can be improved.

  In this modification, the posture around the axis T of the video D ′ is not always rotated by the same angle as the inclination angle around the axis Q1 of the viewer's face P.

  In addition, although this modification was applied to Embodiment 1, you may apply to said other modification (for example, modification 3 * 4).

[Embodiment 2]
In the first embodiment, the posture of the video displayed on the display unit 13 is changed by the image processing. However, in the present embodiment, the posture of the display unit 13 is changed so that the image is displayed on the display unit 13. The posture of the image to be changed is changed.

  The present embodiment is configured in the same manner as in the first embodiment except that the posture changing unit 12 of the display device 10 is changed as follows. Therefore, below, based on FIG. 12, the same code | symbol is attached | subjected to the same component as Embodiment 1, and description is abbreviate | omitted and only a different component is demonstrated.

  In the present embodiment, the image displayed on the display unit 13 is always displayed so as not to be inclined to the display screen 13a, like the image D in FIG.

  As shown in FIG. 12, the posture changing unit 12D of the present embodiment includes a support mechanism 15a, a drive unit 15b (drive unit), and a control unit 15c (first control unit).

  The support mechanism 15a supports the display unit 13 so that the posture of the display unit 13 can be changed. Here, as shown in FIG. 13B, the support mechanism 15a uses, for example, the normal line at the center of the display screen 13a as the rotation axis Q7, and the display unit 13 can rotate around the rotation axis Q7. The display unit 13 is supported. The support mechanism 15a supports the display unit 13 so that the display screen 13a of the display unit 13 is substantially vertical.

  Based on the control of the control unit 15c, the drive unit 15b drives the support mechanism 15a so that the display unit 13 rotates about the axis Q7.

  The control unit 15c tilts the attitude of the display unit 13 about the axis Q7 by driving and controlling the driving unit 15b based on the attitude signal S1 received by the attitude signal receiving unit 11. Thereby, the posture of the image displayed on the display unit 13 is tilted about the axis Q7.

  More specifically, the control unit 15c detects the inclination of the face P around the axis Q1 along the front-rear direction H3 of the viewer's face P based on the posture signal S1 (see FIG. 3).

  As a result of the above detection, when the viewer's face P is not tilted about the axis Q1 as shown in FIG. 3A, the control unit 15c displays the display unit 13 as shown in FIG. The driving unit 15b is controlled so that the posture of the display unit 13 does not tilt around the axis Q7 (that is, the horizontal direction of the display unit 13 substantially matches the horizontal direction).

  On the other hand, as a result of the above detection, when the viewer's face P is inclined, for example, clockwise (in the direction of arrow R) around the axis Q1, as shown in FIG. As shown in FIG. 13B, the drive unit 15b is controlled so that the display unit 13 is inclined about the axis Q7 in the same rotation direction (for example, clockwise) as the inclination of the viewer's face P.

  In this way, the control unit 15c tilts the posture of the display unit 13 around the axis Q7 to the same angle and the same rotation direction as the tilt around the axis Q1 of the viewer's face P via the drive unit 15b. Therefore, the posture around the axis Q7 of the video displayed on the display unit 13 always coincides with the posture around the axis Q1 of the viewer's face. Thereby, even if the viewer tilts his / her face about the axis Q1, the viewer can view the video without tilting the viewer.

  In addition, since the posture of the video is changed by changing the posture of the display unit 13, the posture of the video can be changed in the real space. Therefore, the visibility of the image after the posture change is good.

  Also in this embodiment, since the posture of the video is changed according to the posture of the viewer's face, it is possible to change the way the video is displayed to the viewer according to the posture of the face. That is, the degree of freedom of video expression can be increased.

(Modification 1)
This modification 1 is a modification of the second embodiment.

  The second embodiment will be described when applied to the first embodiment (that is, when the posture of the display unit 13 is changed according to the inclination of the face around the axis Q1 along the front-rear direction of the viewer's face). However, in this modification, the second embodiment is applied to the third modification of the first embodiment (that is, displayed according to the inclination of the face around the axis Q2 along the left-right direction of the viewer's face). The posture of the section 13 is changed).

  Below, based on FIG. 12, the same code | symbol is attached | subjected to the same component as Embodiment 2, and description is abbreviate | omitted and only a different component is demonstrated.

  The glasses 20 of this modification are the same as the glasses 20 of the modification 3 of the first embodiment. As shown in FIGS. 8A and 8B, glasses about the axis Q2 along the left-right direction of the glasses 20 are used. By detecting the inclination of 20, the inclination around the axis Q2 of the face P of the viewer is detected.

  The display device 10 of this modification is configured similarly to the display device 10 of the second embodiment except that the support mechanism 15a and the control unit 15c are different as described below.

  In the support mechanism 15aE of this modified example, an axis passing through the center in the vertical direction of the display unit 13 and extending in the horizontal direction of the display unit 13 is a rotation axis Q9 (see FIG. 14), and the display unit 13 around the rotation axis Q9. The display unit 13 is supported so that can rotate freely. FIG. 14 is a diagram viewed from the right side of the display unit 13.

  The control unit 15cE of this modification detects the inclination of the face P around the axis Q2 along the left-right direction H1 of the viewer's face P based on the posture signal S1 received by the posture signal receiving unit 11 (FIG. 8). reference).

  As a result of the above detection, when the viewer's face P is not tilted about the axis Q2 as shown in FIG. 8A, the control unit 15cE has the posture of the display unit 13 as shown in FIG. The drive unit 15b is controlled so that it does not tilt around the axis Q9 (for example, the vertical direction H100 of the display unit 13 substantially matches the vertical direction H101).

  On the other hand, as a result of the above detection, when the viewer's face P is tilted around the axis Q2 by an angle θ as viewed from the viewer's right side as indicated by the arrow R1 in FIG. 14, the arrow R2 in FIG. As described above, the control unit 15cE controls the drive unit 15b so that the display unit 13 is inclined at an angle φ around the axis Q9 in the same rotation direction (here, clockwise) as the inclination around the axis Q2 of the viewer's face P. To do.

  In this way, the control unit 15cE tilts the posture of the display unit 13 around the axis Q9 to the same angle and the same rotation direction as the inclination of the viewer's face P around the axis Q2 via the drive unit 15b. Therefore, the posture around the axis Q7 of the image displayed on the display unit 13 always coincides with the posture around the axis Q2 of the viewer's face. Thereby, even if the viewer tilts his / her face around the axis Q2, the viewer can view the video without tilting the viewer.

(Modification 2)
This modification 2 is a modification of the second embodiment.

  The second embodiment will be described when applied to the first embodiment (that is, when the posture of the display unit 13 is changed according to the inclination of the face around the axis Q1 along the front-rear direction of the viewer's face). However, in this modification, the second embodiment is applied to the fourth modification of the first embodiment (that is, displayed according to the inclination of the face around the axis Q3 along the vertical direction of the viewer's face). The posture of the section 13 is changed).

  Below, based on FIG. 12, the same code | symbol is attached | subjected to the same component as Embodiment 2, and description is abbreviate | omitted and only a different component is demonstrated.

  The glasses 20 of this modification are the same as the glasses 20 of the modification 4 of the first embodiment, and as shown in FIGS. 10A and 10B, the deflection of the glasses 20 from the reference direction H12 around the axis Q3. By detecting ψ, a shake ψ from the reference direction H12 around the axis Q3 in the face P of the viewer is detected.

  The display device 10 of this modification is configured similarly to the display device 10 of the second embodiment except that the support mechanism 15a and the control unit 15c are different as described below.

  As shown in FIG. 15, the support mechanism 15aF of this modified example uses a rotation axis Q10 as an axis passing through the center of the display unit 13 in the left-right direction and extending along the vertical direction of the display unit 13, and the display unit around the rotation axis Q10. The display unit 13 is supported so that 13 can rotate. FIG. 15 is a view of the viewer's face P and the display unit 13 as viewed from above.

  Based on the posture signal S1 received by the posture signal receiving unit 11, the control unit 15cF of this modification detects a shake from the reference direction H12 around the axis Q3 on the face P of the viewer as shown in FIG.

  As a result of the above detection, when the viewer's face P is not shaken from the reference direction H12 around the axis Q3 as shown in FIG. 10A, the control unit 15c displays the display unit as shown in FIG. The drive unit 15b is controlled so that the posture around the 13 axis Q10 is not changed. Note that the posture of the display unit 13 around the axis Q10 is initially directed toward the viewer.

  On the other hand, as a result of the above detection, if the viewer's face P is swung by an angle ψ about the axis Q3, for example, clockwise as shown by the arrow R1 in FIG. Controls the drive unit 15b so that the display unit 13 can swing the angle ψ about the axis Q10 in the same rotational direction (here, clockwise) as the shake about the axis Q10 of the viewer's face P.

  In this way, the control unit 15cF uses the drive unit 15b to make the posture of the display unit 13 around the axis Q10 (and thus the posture around the video axis Q10) the same as the shake around the axis Q3 of the viewer's face P. Shake at an angle and the same direction of rotation. Therefore, the posture around the axis Q10 of the image displayed on the display unit 13 always matches the posture around the axis Q3 of the face P of the viewer. As a result, even if the viewer shakes his / her face around the axis Q10, the viewer can always watch the video without shaking.

(Modification 3)
This modification is a modification of the second embodiment.

  In the second embodiment, the posture around the axis Q7 (see FIG. 13B) of the display unit 13 is rotated by the same angle as the inclination around the axis Q1 of the viewer's face P. In this modification, The posture around the axis Q7 of the display unit 13 is rotated more greatly as the change speed of the posture around the axis Q1 of the face P of the viewer is faster.

  This modification is configured in the same manner as in the second embodiment except that the control unit 15c is different as follows. Hereinafter, a description will be given with reference to FIG.

  Based on the posture signal S1 received by the posture signal receiving unit 11, the control unit 15cG of this modification example obtains the change rate of the posture around the axis Q1 (see FIG. 3) along the front-rear direction of the glasses 20, and the change As the speed increases, the posture around the axis Q7 (see FIG. 13B) of the display unit 13 is largely changed.

  As a result, as the viewer's face P tilts faster about the axis Q1, the posture of the display unit 13 (and hence the posture of the video D) is more greatly tilted about the axis Q7, so that the realistic sensation of the video can be improved.

  In this modification, the attitude of the display unit 13 around the axis Q7 is not always rotated by the same angle as the inclination angle around the axis Q1 of the viewer's face P.

  This modification is applied to the second embodiment, but may be applied to other modifications (for example, modifications 1 and 2) of the second embodiment.

[Embodiment 3]
Although Embodiment 1 is provided with only one pair of glasses 20, in this embodiment, a plurality of glasses is provided.

  That is, in the present embodiment, each of the plurality of viewers simultaneously views the image displayed on the display unit while wearing glasses. At this time, the viewer wearing the glasses selected by manual operation has to When the face is tilted, the posture of the image displayed on the display device is changed according to the tilt.

  Below, based on FIG. 16, the same code | symbol is attached | subjected to the same component as Embodiment 1, and description is abbreviate | omitted, and the component different from Embodiment 1 is demonstrated.

  As shown in FIG. 16, the display control system 1J according to the present embodiment includes a display device 10 that displays an image and a plurality of glasses 20J that can be worn by a viewer. Hereinafter, for the sake of convenience of explanation, a case where three glasses 20J are provided will be described, but the number is not limited to three.

(Composition of glasses)
The glasses 20J further include a selection unit 30 (selection means) in the glasses 20 of Embodiment 1 (see FIG. 1). The selection unit 30 has a function of selecting glasses that are targets for changing the posture of an image displayed on the display unit 13 of the display device 10. The selection unit 30 is preferably provided in the glasses 20J as a part of the operation unit 25, for example, as a switch that allows the viewer to control the ON / OFF of the selection.

  The viewer turns on the selection unit 30 when he / she wants to display an image based on his / her posture on the display unit 13. The glasses 20J with the selection unit 30 turned on perform posture detection by the posture detection unit 22, and transmit the posture signal S1 to the display device 10 via the posture signal output unit 24. The display device 10 changes the attitude of the video based on the received attitude signal S1 based on the control described in the first embodiment and its modifications 1 to 5 or the second embodiment and the modifications 1 to 3.

  The number of glasses selected as a target for changing the posture of the video (hereinafter, referred to as “selected” in the third embodiment) is one or zero, and is displayed on the display unit 13 in the case of zero. The posture of the image is not changed.

  In addition, in order to prevent the selection unit 30 of two or more glasses 20J from being turned on, the plurality of glasses 20J always monitor the state of each other's selection unit 30, and finally the selection unit 30 is turned on. The selection unit 30 other than the glasses 20J may be controlled to be turned off.

  In this case, each of the glasses 20J includes a transmission / reception unit that transmits / receives the ON / OFF state of the selection unit 30 of the glasses 20J to / from the other glasses 20J. And based on the received signal of the said transmission / reception part, the selection part 30 of each spectacles 20J monitors the ON / OFF state of the selection part 30 of the other spectacles 20J, and performs said control based on the monitoring.

  Alternatively, among the posture signals S1 from the plurality of glasses 20J received by the posture signal receiving unit 11, only the signal S1 that has been received last may be transmitted to the posture changing unit 12.

(Modification 1)
The first modification is a modification of the third embodiment.

  In the third embodiment, the selection unit 30 is provided in the glasses 20. However, in this modification, the display device is provided with the selection unit, and the video is selected inside the display device.

  Hereinafter, a display control system 1K according to this modification will be described with reference to FIG. In the following description, the same components as those in Embodiment 1-3 are denoted by the same reference numerals, description thereof is omitted, and components different from those in Embodiment 1-3 are mainly described.

(Composition of glasses)
In this modification, each eyeglass 20 has the same configuration as the eyeglass 20 of the first embodiment as shown in FIG.

(Configuration of display device)
In this modification, the display device 10K is configured to further include a selection unit 30 (selection means) in the display device 10 of the third embodiment, as shown in FIG. For example, the viewer selects glasses used for changing the posture of the image from the plurality of glasses 20 by operating a remote controller (not shown) and inputs selection information to the selection unit 30. The selection unit 30 transmits the selection information to the attitude signal reception unit 11K.

  In this modification, the posture signal receiving unit 11K transmits only the posture signal S1 of the glasses indicated by the selection information to the posture changing unit 12 among the posture signals S1 from the plurality of glasses 20. Then, the posture changing unit 12 performs a video posture changing operation.

[Embodiment 4]
Although Embodiment 1 is provided with only one pair of glasses 20, in this embodiment, a plurality of glasses is provided.

  In other words, in this embodiment, each of the plurality of viewers simultaneously watches the image displayed on the display unit while wearing the glasses. At that time, for example, when one viewer tilts his face, Only the posture of the image viewed by the viewer is changed according to the inclination.

  Below, based on FIG. 18, the same code | symbol is attached | subjected to the same component as Embodiment 1, and description is abbreviate | omitted, and the component different from Embodiment 1 is demonstrated.

  As shown in FIG. 18, the display control system 1H according to the present embodiment includes a display device 10H that displays an image and a plurality of glasses 20H that can be worn by a viewer. Below, for convenience of explanation, a case where three glasses 20H are provided will be described, but the number is not limited to three.

(Composition of glasses)
The glasses 20H are the same as the glasses 20 of Embodiment 1 (see FIG. 1), but the liquid crystal shutter 27 (opening / closing means), the switching signal receiving unit 28 (second receiving means), and the shutter control unit 29 (second control means) Are further provided.

  The liquid crystal shutter 27 opens and closes the field of view of the glasses 20H, and includes a left-eye liquid crystal shutter 27L and a right-eye liquid crystal shutter 27R.

  The left-eye liquid crystal shutter 27L is disposed in the left-eye opening 21cL (see FIG. 2) of the frame 21a of the glasses 20H, and the field of view of the left-eye opening 21cL is changed according to switching between the transmission state and the light-shielding state. Switch between open and closed. The right-eye liquid crystal shutter 27R is disposed in the right-eye opening 21cR (see FIG. 2) of the frame 21a of the glasses 20H, and the field of view of the left-eye opening 21cL is changed according to the switching between the transmission state and the light-shielding state. Switch between open and closed.

  The switching signal receiving unit 28 receives a switching signal S3 output from a switching signal output unit 23 (to be described later) of the display device 10H.

  The switching signal receiving unit 28 is connected to the switching signal output unit 23 of the display device 10H via a wiring, and receives the switching signal S3 output from the switching signal output unit 23 via the wiring.

  In the present embodiment, the switching signal output unit 23 of the display device 10H and the switching signal receiving unit 28 of each of the glasses 20H are connected by wire, but wirelessly using an optical signal, an infrared signal, or the like. You may connect by communication.

  The shutter control unit 29 switches the light transmitting state / light blocking state of the liquid crystal shutter 27 based on the switching signal S3 received by the switching signal receiving unit 28.

  More specifically, when switching the liquid crystal shutter 27 to the translucent state, the shutter control unit 29 switches both the left-eye liquid crystal shutter 27L and the right-eye liquid crystal shutter 27R to the translucent state. Further, when switching the liquid crystal shutter 27 to the light shielding state, the shutter control unit 29 switches both the left eye liquid crystal shutter 27L and the right eye liquid crystal shutter 27R to the light shielding state.

  As a result, the video displayed on the display unit 13 can be visually recognized by the viewer in a time-sharing manner in accordance with the switching between the transmission state / light-shielding state of the liquid crystal shutter 27.

(Configuration of display device)
The display device 10H includes a change number detection unit 18 (change number detection unit), a time division unit 19 (time division unit), and a correspondence unit 16 (correspondence) in the display device 10 of Embodiment 1 (see FIG. 1). A switching signal output unit 23 (second output unit), and a switching signal output control unit 26 (switching signal generation unit).

  The posture signal receiving unit 11 of the present embodiment is connected to the posture signal output unit 24 of each glasses 20H via a wiring, and is output from the posture signal output unit 24 of each glasses 20H via the wiring. The attitude signal S1 is received.

  In this embodiment, the posture signal receiving unit 11 and the posture signal output unit 24 of each eyeglass 20H are connected by wire, but are connected by wireless communication using an optical signal, an infrared signal, or the like. It doesn't matter.

  Based on each posture signal S1 received by the posture signal receiving unit 11 from the posture signal output unit 24 of each glasses 20H, the number-of-changes detection unit 18 counts the number of glasses 20H whose posture has changed among all the glasses 20H. Is detected. Here, the number-of-changes detection unit 18 detects the number of glasses 20H tilted about the axis Q1, as shown in FIG. 3B, as the glasses 20H whose posture has changed.

  The time division unit 19 controls the video output control unit 17 so that each frame of the video displayed on the display unit 13 is timed into a plurality of sub-frames when the detection result of the change number detection unit 18 is one or more. To divide. In addition, the associating unit 16 identifies the glasses 20H whose posture has changed based on the posture signal S1 received from each of the glasses 20H by the posture signal receiving unit 11, and each of the glasses 20H whose posture has changed. All the glasses 20H are associated with the plurality of sub-frames so as to correspond to different sub-frames among the plurality of sub-frames.

  More specifically, the time division unit 19 displays a display when the detection result of the change number detection unit 18 is more than one and a number (first number) less than the total number of glasses 20H (ie, three). Each frame of the video displayed on the unit 13 is time-divided into a number (second number) of subframes that is one more than the above number (first number). In this case, the associating unit 16 associates each pair of glasses 20H whose posture has not changed with one common sub-frame among the second number of sub-frames, and sets each pair of glasses whose posture has changed to the second The remaining subframes of the subframes are made to correspond one-to-one.

  In addition, when the detection result of the change number detection unit 18 is the same as the total number (three) of the glasses 20H, the time division unit 19 sets each frame of the video displayed on the display unit 13 to the total number of the glasses 20H ( That is, it is time-divided into the same number (that is, three) sub-frames. In this case, the associating unit 16 associates the three glasses 20H whose postures are changing with the three sub-frames on a one-to-one basis.

  Further, the time division unit 19 does not time-divide each frame of the video displayed on the display unit 13 into sub-frames when the detection result of the change number detection unit 18 is zero. In this case, the association unit 16 associates all the glasses 20H with each frame.

  The posture changing unit 12 controls the video output control unit 17 to receive the posture signal of the posture of the video shown in the sub-frame associated with the glasses 20H whose posture has changed, as in the first embodiment. It changes based on the attitude | position signal S1 from the said glasses 20H which the part 11 received. As a result, the posture of the image shown in the sub-frame associated with the glasses 20H whose posture has changed is tilted around the center T as shown in the image D ′ in FIG. Note that the posture changing unit 12 does not tilt the posture of the video shown in the sub-frame associated with the glasses 20H whose posture has not changed, as in the video D in FIG.

  The video output control unit 17 receives a video signal S2 from the outside, displays each frame of the video signal S2 in order on the display unit 13, and also outputs a synchronization signal S4 indicating the display timing of each frame to the switching signal output control unit 26. Output to.

  In addition, when the time division unit 19 time-divides each frame into a plurality of sub-frames, the video output control unit 17 displays each sub-frame in turn on the display unit 13 and a synchronization signal S4 indicating the display timing of each sub-frame. Is output to the switching signal output control unit 26.

  In addition, as described above, the video output control unit 17 changes the posture around the axis T of the video image shown in the sub-frame around the axis Q1 of the glasses 20H associated with the sub-frame according to the control of the posture changing unit 12. Based on the inclination, it is changed by image processing.

  Based on the association of the association unit 16 and the synchronization signal S4 from the video output control unit 17, the switching signal output control unit 26 only displays the field of view of the glasses 20H associated with the sub-frame displayed on the display unit 13. A switching signal S3 for each of the glasses 20H is generated so that is opened.

  The switching signal output unit 23 outputs the switching signal S3 for each glasses 20H generated by the switching signal output control unit 26 to the switching signal receiving unit 28 of each glasses 20H.

(Description of operation)
Below, based on FIG.14, FIG.18 and FIG.19, operation | movement description is demonstrated centering on operation | movement of the principal part of the display apparatus 10H. Hereinafter, for convenience of explanation, the three glasses 20H are distinguished from the glasses 20Ha, 20Hb, and 20Hc, respectively.

  FIG. 19 illustrates the correspondence between the glasses 20Ha, 20Hb, and 20Hc and the sub-frames SK1, SK2, and SK3, and the open / closed state of the glasses 20Ha, 20Hb, and 20Hc during the display period of the sub-frames SK1, SK2, and SK3. FIG.

  “Open” in FIG. 19 indicates an open state of the field of view of the glasses, and “Close” indicates a closed state of the field of view of the glasses. Further, (correspondence) in FIG. 19 indicates the glasses (20Ha, 20Hb or 20Hc) in the leftmost column of the (correspondence) and the top frame K or sub-frame (SK1, SK2 or SK3) of the (correspondence). ) Indicates that they are associated with each other, and (non-corresponding) indicates that they are not associated with each other.

  When the detection result of the change number detection unit 18 is zero (that is, when the glasses 20Ha, 20Hb, and 20Hc are not inclined around the axis Q1), as shown in FIG. The video output control unit 17 displays each frame K one by one in order on the display unit 13 without time-dividing each frame K of the video, and the associating unit 16 assigns all the glasses 20Ha, 20Hb, As shown in FIG. 19A, the switching signal output control unit 26 associates the glasses 20Ha, 20Hb, and 20Hc so that the glasses 20Ha, 20Hb, and 20Hc are open during the display period of each frame K. A switching signal S3 for 20Hb / 20Hc is generated and output from the switching signal output unit 23.

  As a result, the image of each frame K displayed on the display unit 13 is visually recognized by all viewers wearing the glasses 20Ha, 20Hb, and 20Hc. In this case, since the postures of all the glasses 20Ha, 20Hb, and 20Hc (and thus the face of the viewer) are not tilted, the postures of the images of the frames K displayed on the display unit 13 are changed by the posture changing unit 12. No (thus the image seen by each viewer is not tilted). That is, when the faces of all the viewers are not tilted, all the viewers visually recognize the image of the same frame K displayed on the display unit 13.

  Further, when the detection result of the change number detection unit 18 is one (for example, when the glasses 20Ha are tilted around the axis Q1, and the other glasses 20Hb and 20Hc are not tilted around the axis Q1), FIG. Similarly, the time division unit 19 time-divides each frame K of the video into two sub-frames SK1 and SK2, which is one more than the one. In addition, the associating unit 16 associates the glasses 20Hb and 20Hc that are not inclined with a common sub-frame (for example, SK2), and associates the inclined glasses 20Ha with the sub-frame SK1.

  In this case, the posture changing unit 12 changes the posture around the axis T of the image of the sub-frame SK1 associated with the tilted glasses 20Ha based on the tilt around the axis Q1 of the glasses 20Ha, and the glasses that are not tilted. The posture of the video of the sub-frame SK2 associated with 20Hb / 20Hc is not changed. Further, when displaying each frame K on the display unit 13, the video output control unit 17 displays each of the sub-frames SK1 and SK2 of each frame K in this order one by one on the display unit 13 (note that the video posture of the sub-frame SK1) Is changed by the attitude changing unit 12 as described above, and the attitude of the video of the sub-frame SK2 is not changed). Thus, when the sub-frame SK1 is displayed, the posture of the image is tilted around the axis T according to the tilt of the glasses 20Ha around the axis Q1, and when the sub-frame SK2 is displayed, the posture of the image is tilted. Absent.

  In this case, as shown in FIG. 19B, the switching signal output control unit 26 opens only the glasses 20Ha associated with the sub-frame SK1 during the display period of the sub-frame SK1, and associates it with the sub-frame SK1. The glasses 20Hb and 20Hc that are not displayed are closed, and the glasses 20Ha that are not associated with the sub-frame SK2 are closed during the display period of the sub-frame SK2, and only the glasses 20Hb and 20Hc that are associated with the sub-frame SK2 are displayed. A switching signal S3 for each of the glasses 20Ha, 20Hb, and 20Hc is generated and output from the switching signal output unit 23 so as to be in the open state.

  As a result, the image on the display unit 13 viewed by the viewer wearing the glasses 20Ha (that is, the viewer whose face is tilted about the axis Q1) is displayed on the axis Q1 of the viewer's face as shown in FIG. 4B. Each viewer who wears the glasses 20Hb and 207Ec (that is, a viewer whose face is not tilted about the axis Q1) is tilted about the axis T according to the inclination of the rotation (that is, the tilt about the axis Q1 of the glasses 20Ha). As shown in FIG. 4B, the image of the display unit 13 viewed by is not tilted.

  When the number of detection results of the change number detection unit 18 is two (for example, when the glasses 20Ha and 20Hb are tilted about the axis Q1, and the glasses 2020Hc are not tilted about the axis Q1), the time division unit 19 is shown in FIG. As in (C), each frame K of the video is time-divided into three sub-frames SK1, SK2, and SK3, one more than the above two. Further, the associating unit 16 associates the glasses 20Hc that are not inclined with the sub-frame (for example, SK3), and associates the inclined glasses 20Ha and 20Eb with the sub-frames SK1 and SK2 on a one-to-one basis. The posture changing unit 12 changes the posture around the axis T of the video of the sub-frame SK1 associated with the tilted glasses 20Ha based on the tilt around the axis Q1 of the glasses 20Ha, and is associated with the tilted glasses 20Hb. The attitude of the sub-frame SK2 around the axis T of the video is changed based on the inclination of the glasses 20Hb around the axis Q1, and the attitude of the video of the sub-frame SK3 associated with the non-tilted glasses 20Hc is not changed.

  In this case, when displaying each frame K on the display unit 13, the video output control unit 17 displays each sub-frame SK1, SK2, and SK3 of each frame K on the display unit 13 one by one in this order (note that The posture of the images of the sub-frames SK1 and SK2 has been changed by the posture changing unit 12 as described above, and the posture of the video of the sub-frame SK3 has not been changed). Thus, when the sub-frame SK1 is displayed, the posture of the image is tilted about the axis T according to the tilt of the glasses 20Ha around the axis Q1, and when the sub-frame SK2 is displayed, the posture of the image is the glasses 20Hb. When the sub-frame SK3 is displayed, the posture of the image is not inclined.

  In this case, as shown in FIG. 19C, the switching signal output control unit 26 opens only the glasses 20Ha associated with the sub-frame SK1 during the display period of the sub-frame SK1, and associates it with the sub-frame SK1. The glasses 20Hb and 20Hc that are not attached are closed, and the glasses 20Hb associated with the sub-frame SK2 are open during the display period of the sub-frame SK2, and the glasses 20Ha and 20Hc that are not associated with the sub-frame SK2 are opened. During the display period of the sub-frame SK3, only the glasses 20Hc associated with the sub-frame SK3 are opened, and the glasses 20Ha and 20Hb that are not associated with the sub-frame SK3 are closed. A switching signal S3 for 20Ha, 20Hb, and 20Hc is generated and the switching signal output unit 23 To output.

  Thereby, the image of the display unit 13 viewed by the viewer wearing the glasses 20Ha (that is, the viewer whose face is tilted about the axis Q1) is tilted around the axis Q1 of the viewer's face (that is, the axis of the glasses 20Ha). The image of the display unit 13 viewed by the viewer wearing the glasses 20Hb (that is, the viewer whose face is tilted about the axis Q1) is tilted about the axis T according to the tilt of the Q1). According to the inclination around the axis Q1 (that is, the inclination around the axis Q1 of the glasses 20Ha) and each viewer wearing the glasses 20Hc (that is, the viewer whose face is not inclined around the axis Q1) The image of the display unit 13 seen by () is not tilted.

  Further, when the number of detection results of the change number detection unit 18 is three (that is, when all the glasses 20Ha, 20Hb, and 20Hc are tilted around the axis Q1), as shown in FIG. Divides each frame K of the video into three sub-frames SK1, SK2, and SK3. The association unit 16 associates the glasses 20Ha, 20Hb, and 20Hc with the sub-frames SK1, SK2, and SK31 to 1: 1. The posture changing unit 12 also sets the postures around the axis T of the images of the sub-frames SK1, SK2, and SK3 associated with the glasses 20Ha, 20Hb, and 20Hc, respectively, and the axes Q1 of the glasses 20Ha, 20Hb, and 20Hc associated with the glasses. Change based on the tilt around.

  In this case, when displaying each frame K on the display unit 13, the video output control unit 17 displays each sub-frame SK1, SK2, and SK3 of each frame K on the display unit 13 one by one in this order (note that The postures of the images of the sub-frames SK1, SK2, and SK3 are changed as described above by the posture changing unit 12). Thus, when the sub-frame SK1 is displayed, the posture of the image is tilted about the axis T according to the tilt of the glasses 20Ha around the axis Q1, and when the sub-frame SK2 is displayed, the posture of the image is the glasses 20Hb. When the sub-frame SK3 is displayed according to the inclination around the axis Q1, the posture of the image is inclined around the axis T according to the inclination around the axis Q1 of the sub-frame SK3.

  In this case, as shown in FIG. 19C, the switching signal output control unit 26 opens only the glasses 20Ha associated with the sub-frame SK1 during the display period of the sub-frame SK1, and associates it with the sub-frame SK1. The glasses 20Hb and 20Hc that are not attached are closed, and the glasses 20Hb that are associated with the sub-frame SK2 are open during the display period of the sub-frame SK2, and the glasses 20Ha and 20Hc that are not associated with the sub-frame SK2 are opened. Is closed, and only the glasses 20Hc associated with the sub-frame SK3 are open during the display period of the sub-frame SK3, and the glasses 20Ha and 20Hb not associated with the sub-frame SK3 are closed. A switching signal S3 for each of the glasses 20Ha, 20Hb, and 20Hc is generated to generate a switching signal output unit 2 The output from.

  Thereby, the image of the display unit 13 viewed by the viewer wearing the glasses 20Ha (that is, the viewer whose face is tilted about the axis Q1) is tilted around the axis Q1 of the viewer's face (that is, the axis of the glasses 20Ha). The image of the display unit 13 viewed by the viewer wearing the glasses 20Hb (that is, the viewer whose face is tilted about the axis Q1) is tilted about the axis T according to the tilt of the Q1). Each viewer wearing the glasses 20Hc (that is, a viewer whose face is tilted around the axis Q1) is tilted around the axis T according to the tilt around the Q1 (that is, the tilt around the axis Q1 of the glasses 20Ha). The image of the viewing display unit 13 is tilted about the axis T according to the tilt of the face around the axis Q1 (that is, the tilt of the glasses 20Ha).

  As described above, according to the present embodiment, a plurality of glasses 20H are provided, the number of tilted glasses 20H is detected by the change number detection unit 18, and is displayed on the display unit 13 by the time division unit 19. Each frame K of the video image is time-divided into a plurality of sub-frames according to the detection result of the change number detection unit 18, and each pair of glasses 20H is associated with the different sub-frames by the associating unit 16 with each sub-frame. 20H and the plurality of sub-frames are associated with each other, and the switching signal output control unit 26 switches each glasses 20H so that only the field of view of the glasses 20H associated with the sub-frame displayed on the display unit 13 is opened. A signal S3 is generated, and the opening / closing of the field of view of each pair of glasses 20H is controlled by the switching signals S3.

  As a result, each viewer wearing the glasses 20H visually recognizes only the video displayed in the sub-frame associated with the glasses 20H that is mounted on the display unit 13. Similarly to the first embodiment, the posture of the image shown in the sub-frame viewed by each viewer is changed according to the tilt of the glasses 20H worn by the viewer (that is, the tilt of the viewer's face).

  Therefore, when the face of, for example, one viewer among the plurality of viewers wearing the glasses 20H is tilted, only the posture of the image viewed by the viewer can be changed according to the tilt.

  In the present embodiment, the time division unit 19 has been described in the case where each frame of the video is indirectly time-divided into a plurality of sub-frames via the video output control unit 17. Each frame of the video may be time-divided into a plurality of sub-frames by performing time-division processing directly on the image signal output from the output control unit 17 to the display unit 13. In this case, the synchronization signal S4 related to the display timing of the sub-frame may be generated by the time division unit 19 instead of the video output control unit 17 and output to the switching signal output control unit 26.

  Also, the posture changing unit 12 has been described in the case where the posture of the video is indirectly changed by image processing by controlling the video output control unit 17, but the posture changing unit 12 is changed from the video output control unit 17 to the display unit. The image orientation may be changed by directly performing image processing on the image signal output to the image signal 13. When the time division unit 19 directly time-divides each frame of the video into a plurality of sub-frames as described above, the time division unit 19 directly performs image processing on the time-divided sub-frame, thereby allowing the posture of the video. May be changed.

(Modification 1)
Regarding the switching method of the liquid crystal shutter 27 according to the fourth embodiment, the above-described method is an example, and switching may be controlled using another method. An example of another method is described below.

  In the following, in the display device 10H, when each frame of the video is time-divided into a plurality of sub-frames as in the fourth embodiment, the sub-frame video that can be viewed with the glasses worn by the viewer by manual operation of the viewer An example will be described in which it is possible to arbitrarily select. Hereinafter, a description will be given with reference to FIG.

  In the fourth embodiment, the switching signal output control unit 26 generates the switching signal S3 for each eyeglass 20H, but in this modification, the switching signal output control unit 26 (switching signal generation means) is provided to each eyeglass 20H. A common synchronization signal (that is, a synchronization signal indicating the timing at which each sub-frame is displayed on the display unit 13) is generated as the switching signal S3. That is, the timing at which all sub-frames are displayed in one type of synchronization signal is shown. Then, the synchronization signal is output from the switching signal output unit 23 (second output means) to each of the glasses 20H as the switching signal S3. Hereinafter, it is also referred to as a synchronization signal S3.

  Further, in this modification, each of the glasses 20H can select a sub-frame to be synchronized among a plurality of sub-frames (in other words, a switching selection for selecting which sub-frame to switch to. (Means) (not shown) is provided as a part of the operation unit 25. The viewer can select the number of the sub-frame to view by operating the synchronization selection means.

  More specifically, in the display device 10H, when the video frames that were displayed at 60 Hz before time division are time-divided into three as in the fourth embodiment, the display timing of each frame is 180 Hz. When it is time-divided into four, it becomes 240 Hz. Even if each of the glasses 20H does not recognize the selection status of the other glasses 20H, for example, the shutter control unit 29 (second control means) obtains information on the number of sub-frame divisions from the frequency of the above-described synchronization signal S3. Is possible. In the case of being divided into three, the sub-frame to be synchronized with the shutter 27 among the three is selected by the synchronization selection means, and the liquid crystal is controlled by the shutter control unit 29 so that only the image of the selected sub-frame can be viewed with the glasses 20H. By controlling the opening / closing of the shutter 27, it is possible to view the video of the desired sub-frame. In this case, the viewer himself performs the operation of the association unit 16.

  When the switching control as described above is performed, the switching signal S3 transmitted from the display device 10H to each of the glasses 20H may be of one type, so that the configuration of the switching signal output control unit 26 is simplified.

(Modification 2)
This modification 2 is a modification of the fourth embodiment. That is, in the fourth embodiment, the glasses 20H to be changed in the posture of the video are automatically selected according to the glasses whose posture is tilted. In this modification, the glasses 20H are selected by the manual operation of the viewer. .

  Below, based on FIG. 20, the same code | symbol is attached | subjected to the same component as Embodiment 4, and description is abbreviate | omitted, and the component different from Embodiment 4 is demonstrated.

  The display device 10K in this modification includes a selection number detection unit 31 (selection number detection means) instead of the change number detection unit 18 of the display device 10H of the fourth embodiment. Further, the selection unit 30K is included in either the glasses 20H or the display device 10K. FIG. 20 illustrates a case where the display device 10K is provided.

  In the fourth embodiment, the number of sub-frames time-divided by the time division unit 19 is determined by the change number detection unit 18 counting the number of glasses 20H whose posture is changed. In the time division unit 19 (time division unit), the number of sub-frames to be time-divided is determined by the number of glasses 20H selected by the selection unit 30K.

  The selection unit 30K is used to select the glasses 20H that are to change the posture of the video, and, for example, the viewer can turn ON / OFF the selection as in the selection unit 30 of the third embodiment. As a switch that can be controlled, the glasses 20H may be provided as a part of the operation unit 25, or may be provided on the display device side in the same manner as the selection unit 30 of the first modification of the third embodiment.

  In this modification, the number of selected glasses 20H may be two or more. The number of selected glasses 20H is counted by the selection number detection unit 31, and the number is transmitted to the time division unit 19. When the selection unit 30K is provided in the glasses 20H, a signal (selection signal) indicating whether or not the selection unit 30K has been selected may be transmitted and received as part of the posture signal S1.

  When the number of selected glasses detected by the selection number detection unit 31 (hereinafter referred to as the selection number) is less than the total number of glasses, the time division unit 19 selects each frame of the video as (selected number + 1) sub-frames. Divide into That is, the image is divided into sub-frames (the number selected) associated with the selected glasses 20H and the image posture is changed, and one sub-frame (one image) whose image posture is not varied. The association unit 16 associates the selected glasses 20H with the corresponding sub-frames. The glasses 20H that are not selected are associated with sub-frames whose posture does not change.

  When the selected number matches the total number of glasses 20H, the time division unit 19 time-divides each frame of the video into the same number of sub-frames as the selected number. The association unit 16 associates each sub-frame with each glasses 20H in a one-to-one correspondence.

  In this way, the glasses 20H that are to change the posture of the video are selected by the viewer's manual operation via the selection unit 30K. Then, only for the viewer wearing the selected glasses 20H, the image is tilted according to the tilt of the glasses 20H worn by the viewer. In combination with the first modification of the fourth embodiment, the sub-frame video that can be viewed with the glasses worn by the viewer may be arbitrarily selected.

(Modification 3)
In the fourth embodiment, the first embodiment is assumed, but instead, the first to fifth modifications of the first embodiment or a combination thereof may be assumed.

  In the above-described first to fourth embodiments and the respective modified examples, the change of the image when the viewer's face rotates along one axis has been described. Of the axes Q1, Q2, and Q3 orthogonal to each other, Images displayed on the display unit 13 described in the first to fourth embodiments and the respective modifications by using a posture detection unit (for example, a three-axis acceleration sensor) capable of detecting rotation about a plurality of axes. It is possible to combine different posture changes. For example, when the posture of the glasses is tilted 30 degrees around the axis Q1, 20 degrees around the axis Q2, and 10 degrees around the axis Q3, it is deformed by 30 degrees in the θ direction shown in the first embodiment, that is, FIG. An image may be displayed that is tilted by 20 degrees in the φ direction shown in Example 4, that is, FIG. 9 and tilted by 10 degrees in the φ direction shown in Modification Example 6, that is, FIG.

[Tilt detection method]
As described above, the posture detection unit 22 can use an acceleration sensor or a gyro sensor. Here, a method of detecting the posture (inclination amount) of the glasses 20 when this acceleration sensor is used will be described.

  FIG. 21 is a schematic diagram for explaining a method of detecting an inclination amount using an acceleration sensor. (A) shows a coordinate system, and (b) to (d) respectively use a uniaxial acceleration sensor. Shows the basic posture, the rotation along the y-axis (rotation along the Q1 axis), and the rotation along the x-axis (rotation along the Q2 axis). This shows the basic posture, rotation along the y-axis (rotation along the Q1 axis), and rotation along the x-axis (rotation along the Q2-axis) when a biaxial acceleration sensor is used. .

  As shown in FIG. 21A, the glasses 20 are provided with a posture detection unit 22 that is an acceleration sensor. For example, in the case of a uniaxial acceleration sensor, as shown in FIG. 21, when the viewer takes a basic posture, the acceleration 42 in the z direction is 1G41. This indicates that the viewer's face is not tilted.

  As shown in FIG. 21 (c), when y-axis rotation (Q1-axis rotation) occurs, the acceleration 43 in the z direction is 1G × cos θ, and the viewer's face is tilted by comparison with 1G41. I understand.

  As shown in FIG. 21 (d), even when x-axis rotation (Q2-axis rotation) occurs, the acceleration 44 in the z direction is 1G × cosφ, and the face of the viewer is tilted by comparison with 1G41. I understand that.

  Next, in the case of a biaxial acceleration sensor, as shown in FIG. 21E, when the viewer takes a basic posture, the acceleration in the x direction is 0 G and the acceleration 45 in the z direction is 1G41. This indicates that the viewer's face is not tilted.

  As shown in FIG. 21F, when the y-axis rotation occurs, the acceleration 46 in the x direction is 1 G × sin θ, the acceleration 47 in the z direction is 1 G × cos θ, and the acceleration 46 in the x direction and the acceleration 47 in the z direction. It can be seen that the face of the viewer is tilted by comparing the absolute value of and the size of 1G41.

  As shown in FIG. 21G, even when the x axis occurs, the acceleration in the x direction is 0 G, the acceleration 48 in the z direction is 1 G × cos φ, and the absolute value of the acceleration in the x direction and the acceleration 48 in the z direction. From the size comparison between 1G and 1G, it can be seen that the face of the viewer is tilted.

  Next, in the case of a three-axis acceleration sensor, the acceleration in each of the x direction, the y direction, and the z direction is output s, so that it can be seen that the face of the viewer is tilted by comparison with the gravitational acceleration direction.

[Supplement]
The present invention can also be expressed as follows. That is, the present invention is a visual switching glasses for switching whether or not the viewer is permitted to see the left and right eyes, based on the inclination detection means for detecting the inclination amount of the visual switching glasses and the detection result of the inclination detection means. And eyeglasses for visual switching provided with an output unit that outputs an inclination amount signal.

  The present invention comprises input means for receiving an inclination amount signal from the above-mentioned glasses for visual switching, and based on the inclination amount signal from the input means, an image that is viewed by the viewer is relative to the viewer. It is the display control apparatus which makes the video mode which changed the.

  The tilt amount detected by the tilt sensor is the tilt amount in which the direction in which the viewer's left and right eyes are aligned tilts from the horizontal direction, and the video display mode is centered on the display device when viewed from the viewer. This is a video mode corresponding to the amount of tilt detected by the tilt sensor by rotating it as a rotation axis.

  The rotational movement is a rotational movement of an image displayed on the display device.

  The display device can perform a screen rotation operation with the screen center as a rotation axis, and the rotation movement is a rotation movement based on the rotation operation of the screen displaying the left-eye image and the right-eye image. .

  Finally, each block of the glasses 20 and 20H and the display devices 10 and 10H may be configured by hardware logic, or may be realized by software using a CPU as follows.

  That is, each block of the glasses 20 and 20H and the display devices 10 and 10H includes a CPU (central processing unit) that executes a command of a control program that realizes each function, a ROM (read only memory) that stores the program, and the program A random access memory (RAM) for expanding the program, and a storage device (recording medium) such as a memory for storing the program and various data. An object of the present invention is to provide a program code (execution format program, intermediate code program, source program) of a control program for each block of the glasses 20 and 20H and the display devices 10 and 10H, which is software that realizes the functions described above. The readable recording medium is supplied to the glasses 20 and 20H and the display devices 10 and 10H, and the computer (or CPU or MPU) reads and executes the program code recorded on the recording medium. Achievable.

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and a compact disk-ROM / MO / MD / digital video disk / compact disk-R. A disk system including an optical disk, a card system such as an IC card (including a memory card) / optical card, or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM can be used.

  The glasses 20 and 20H and the display devices 10 and 10H may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Also, the transmission medium constituting the communication network is not particularly limited. For example, even in the case of wired such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL line, etc., infrared rays such as IrDA and remote control, Bluetooth ( (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

  The display control system of the present invention can change the posture of the image displayed on the display device according to the posture of the face of the viewer, and is particularly suitable for a liquid crystal display device or a self-luminous display device such as plasma. Can be applied to.

1 · 1H · 1J Display control system 11 Attitude signal receiver (first receiver)
12, 12B, 12C Posture change unit (posture change means)
13 Display Unit 15a / 15aE / 15aF Support Mechanism 15b Drive Unit (Drive Unit)
15c / 15cE / 15cF / 15cG control unit (first control means)
16 Corresponding part (corresponding means)
17 Video output control unit 18 Change number detection unit (change number detection means)
19 Time division part (time division means)
20 Glasses (Attitude detection glasses)
22 Attitude detection unit (Attitude detection means)
23. Switching signal output unit (second output means)
24 attitude signal output unit (first output means, output means)
25 Operation part (switching selection means)
26 switching signal output control unit (switching signal generating means)
28 Switching signal receiver (second receiving means)
29 Shutter control unit (second control means, control means)
27 Liquid crystal shutter (opening and closing means)
30 Selection part (selection means)
31 Selection Number Detection Unit (Selection Number Detection Unit)

Claims (22)

A display device for displaying images;
Glasses that can be worn on the face of the viewer,
With
The glasses above
Posture detecting means for detecting the posture of the glasses;
First output means for outputting the detection result of the attitude detection means to the display device as an attitude signal;
With
The display device
A display unit for displaying the video;
First receiving means for receiving the attitude signal;
Attitude changing means for changing the attitude of the video based on the attitude signal received by the first receiving means;
A display control system comprising: The posture detecting means detects the posture of the glasses around an axis along the front-rear direction of the glasses;
The posture changing means changes the posture of the video by rotating the video around an axis along a normal line of the video plane of the video based on the posture signal. The display control system according to 1. The posture detecting means detects the posture of the glasses around an axis along the left-right direction of the glasses;
The posture changing means changes the posture of the video by rotating the video around an axis along a horizontal direction of a video plane of the video based on the posture signal. 3. The display control system according to 1 or 2. The posture detection means detects the posture of the glasses around an axis along the vertical direction of the glasses;
The posture changing means changes the posture of the video by rotating the video around an axis along the vertical direction of the video plane of the video based on the posture signal. The display control system according to any one of 1 to 3.   5. The display control system according to claim 1, wherein the posture changing unit rotates the video in the same rotation direction as a rotation direction of the posture change of the glasses.   The display control system according to claim 5, wherein the posture changing unit is rotated so that a rotation angle of the video image substantially matches a rotation angle of the glasses.   The posture changing means is configured such that the rotation amount of the image is such that the front-rear axis of the glasses and the front-rear axis of the image are substantially parallel, and the left-right axis of the glasses and the horizontal axis of the image 6. The display control system according to claim 5, wherein the display control system is rotated so that the vertical axis of the glasses and the vertical axis of the video are substantially parallel to each other.   6. The display control system according to claim 5, wherein the posture changing means obtains a change rate of the posture of the glasses based on the posture signal, and greatly changes the posture of the video as the change speed increases. .   The display control system according to claim 1, wherein the attitude changing unit changes the attitude of the video by image processing. The posture changing means is
A support mechanism for supporting the display unit so that the posture of the display unit can be changed;
Drive means for driving the support mechanism;
First control means for changing the attitude of the image by changing the attitude of the display unit by drivingly controlling the support mechanism via the driving means;
The display control system according to claim 1, further comprising: There are a plurality of the above glasses,
Either the display device or the glasses
A selection means for selecting one of the plurality of glasses to change the posture of the image;
The posture changing means changes the posture of the video based on the posture signal of the glasses selected by the selection means received by the first receiving means. The display control system according to item. There are a plurality of the above glasses,
Each of the above glasses
Opening and closing means for opening and closing the field of view of the glasses;
Second receiving means for receiving a switching signal from the display device;
Second control means for controlling the opening and closing operation of the opening and closing means based on the switching signal,
The display device or the glasses are
A selection means for selecting glasses for changing the posture of the image displayed on the display unit from the plurality of glasses;
The display device
Selection number detection means for detecting a selection number that is the number of the glasses selected by the selection means;
Time division means for time-dividing each frame of the video into a plurality of sub-frames based on the selection number detected by the selection number detection means;
Association means for associating the plurality of glasses with the plurality of sub-frames so that the glasses selected by the selection means correspond to different sub-frames of the plurality of sub-frames;
Further comprising
The posture changing means is
The posture of the image shown in the sub frame associated with the glasses selected by the selection unit is changed based on the posture of the glasses. Display control system. When the detection result of the selection number detection means is the same as the total number of the glasses, the time division means time-divides each frame of the video into the same number of sub-frames as the total number of glasses,
The association means associates each of the glasses whose posture has changed with the same number of sub-frames on a one-to-one basis,
When the detection result of the selection number detection means is a first number that is greater than one and less than the total number of the glasses, a second number in which each frame of the video is one more than the first number Time-divided into sub-frames,
The association means associates each pair of glasses not selected as a posture change target with one common sub-frame of the second number of sub-frames, and selects each pair of glasses selected as a posture change target. To the remaining sub-frames of the second number of sub-frames one-to-one,
13. The display control system according to claim 12, wherein when the detection result of the selection number detection means is zero, each frame of the video is not time-divided. There are a plurality of the above glasses,
Each of the above glasses
Opening and closing means for opening and closing the field of view of the glasses;
Second receiving means for receiving a switching signal from the display device;
Second control means for controlling the opening / closing operation of the opening / closing means based on the switching signal;
Further comprising
The display device
Based on the posture signal received by the first receiving means, a change number detecting means for detecting the number of the glasses whose posture has changed;
Time division means for time-dividing each frame of the video into a plurality of sub-frames when the change number detection means has one or more detection results;
Association means for associating the plurality of glasses with the plurality of sub-frames, so that each of the glasses whose postures are changing corresponds to different sub-frames of the plurality of sub-frames;
Further comprising
The posture changing means is
The display according to any one of claims 1 to 10, wherein a posture of the video displayed in the sub-frame associated with the glasses whose posture is changing is changed based on a posture of the glasses. Control system. When the detection result of the change number detection means is the same as the total number of the glasses, the time division means time-divides each frame of the video into the same number of sub-frames as the total number of the glasses,
The association means associates each of the glasses whose posture has changed with the same number of sub-frames on a one-to-one basis,
When the detection result of the change number detection means is a first number that is greater than one and less than the total number of the glasses, a second number that is one more than the first number for each frame of the video Time-divided into sub-frames,
The association means associates each of the glasses whose posture has not changed with one common sub-frame of the second number of sub-frames, and each of the glasses whose posture has changed is the second number. 1-to-1 correspondence with the remaining sub-frames of
The display control system according to claim 14, wherein when the detection result of the change number detection unit is zero, each frame of the video is not time-divided. The display device
Switching signal generating means for generating the switching signal for each of the glasses so that only the field of view of the glasses associated with the sub-frame displayed on the display unit is opened;
Second output means for outputting each of the switching signals to the second receiving means of each of the glasses;
If each frame of the above video is not time-shared,
The display control system according to any one of claims 12 to 15, wherein the switching signal generation unit generates the switching signal so that the field of view of all the glasses is opened. The display device
Switching signal generation means for generating the switching signal that is the switching signal common to the glasses and that indicates the timing at which the plurality of sub-frames are displayed on the display unit;
Second output means for outputting the switching signal to the second receiving means of the glasses;
Further comprising
Each of the above glasses
A switching selection means for selecting which sub-frame to switch to among the plurality of sub-frames;
The second control means controls the opening / closing means based on the switching signal so that the glasses are opened only when the image of the sub-frame selected by the switching selection means is displayed,
If each frame of the above video is not time-shared,
The display control system according to any one of claims 12 to 15, wherein the switching signal generation unit generates the switching signal so that the field of view of all the glasses is opened. Attitude detection glasses that can be worn on the viewer's face,
Posture detection means for detecting the posture of the posture detection glasses;
Output means for outputting the detection result of the posture detection means to the outside as a posture signal;
An eyeglass for posture detection, comprising: Opening and closing means for opening and closing the field of view of the posture detection glasses;
Receiving means for receiving a switching signal from the outside;
Control means for controlling the opening / closing operation of the opening / closing means based on the switching signal received by the receiving means;
The posture detecting glasses according to claim 18, further comprising:   A control program for operating the display control system according to any one of claims 1 to 17, wherein the control program causes a computer to function as each of the above means.   A control program for operating the posture detection glasses according to claim 18 or 19, wherein the computer functions as each of the above-described means.   A computer-readable recording medium in which the control program according to claim 20 or 21 is recorded.

Images