WO2005079078A1

WO2005079078A1 - Stereoscopic video image recording/reproducing method and stereoscopic video image display

Info

Publication number: WO2005079078A1
Application number: PCT/JP2004/001694
Authority: WO
Inventors: Seijiro Tomita
Original assignee: Seijiro Tomita
Priority date: 2004-02-17
Filing date: 2004-02-17
Publication date: 2005-08-25
Also published as: JPWO2005079078A1; JP4341751B2

Abstract

A novel stereoscopic video image recording/reproducing method and a stereoscopic video image display in which video information for left and right eyes can be displayed entirely and the stereoscopic video images can be managed centrally in recording and reproducing operations. When a stereoscopic video synthesis signals are divided into odd line and even line and video signals for left eye and right eye are recorded, one line is recorded as a video signal for one eye whereas the other line is recorded as a video signal for the other eye. Subsequently, the stereoscopic video synthesis signals are rearranged alternately such that the one line is recorded as a video signal for the other eye whereas the other line is recorded as a video signal for one eye, and then they are reproduced and displayed.

Description

Stereoscopic video recording / playback method and stereoscopic video display device for displaying the same

The present invention relates to a method for recording / reproducing high-quality video signals for left-eye and right-eye constituting a stereoscopic video as one stereoscopic video composite signal, and to a stereoscopic video display device for displaying the same.

'' Technical background

As a conventional stereoscopic video display without glasses that displays stereoscopic video to the viewer, as shown in Figs. 12 (a) and (b), the left-eye video and right-eye video are displayed dot by dot in the vertical direction of the screen. A lenticular method or a parallax barrier method for displaying images side by side, and a device for displaying a left-eye image and a right-eye image side by side in a horizontal direction on a screen as shown in FIG. The three-dimensional image display device disclosed in this publication divides all horizontal scanning lines of the display panel into odd lines and even lines, and places a left eye on each line. In this method, a stereoscopic image is displayed by displaying images for the right and left eyes and dispersing the images to the left and right eyes of the viewer by optical means. According to this display method, the lenticular method and the parallax barrier method are used. The horizontal resolution, which was a disadvantage of Mau but problems came in the solution, leaving the problem of vertical resolution becomes half.

In order to reduce flicker, the video signal used in the above-mentioned conventional stereoscopic video display device uses a non-interlaced video signal that combines the left and right video signals for the purpose of displaying the left and right video at the time of viewing. Generally, the video signal and the right-eye camera video signal are recorded, stored, and played back as one video signal.

Fig. 14 shows an example of a conventional general method of synthesizing video signals, in which the odd field of the right-eye interlaced video signal and the even field of the right-eye interlaced video signal are alternately recorded (called a field sequence method). ) To make one stereoscopic video composite signal. The advantage of this method is that recording and playback can be performed with a single video recording and playback device, Video editing can be performed by a single editing device, and video storage management can be centralized. However, in such a conventional stereoscopic video display device and a stereoscopic video signal recording / reproducing method, as shown in FIG. 14 (c), each field of the recorded stereoscopic video composite signal is an odd field or an odd field. There is a problem that the vertical resolution is halved because information is only for the even-numbered fields. In addition, information in the time axis direction jumps one field at a time (l 60 sec display → 1/30 sec display), making it difficult to display moving images more smoothly. There was a problem.

In particular, when the stereoscopic video composite signal is displayed using the stereoscopic video display device, as shown in FIG. 14 (d), the left and right video shifted by one field are displayed at the same time. Time inconsistency occurs. Furthermore, despite the fact that the three-dimensional image display device is displaying a non-interlaced signal, the left and right eyes display an image with half the vertical resolution of each. In addition, there is a problem that a vertical shift occurs between the odd field and the even field due to the interlace signal in the left and right images.

The present invention has been made in view of the present situation, and its purpose is to be able to display all of the left and right eye video information, which could not be realized by the conventional stereoscopic video system, It aims to provide a completely new stereoscopic video signal recording / reproducing method capable of centralized management of stereoscopic video in recording / reproducing, and a stereoscopic video display device for displaying the method. Disclosure of the invention

In order to achieve the above object, the invention described in claim 1 is a stereoscopic video composite signal that combines a left-eye video signal and a right-eye video signal constituting a stereoscopic video, transmits the non-interlace, and records the stereoscopic video signal. In the method of recording and playback of the three-dimensional video composite signal, the odd-numbered line of one frame of the stereoscopic video composite signal is used as the video signal for one eye, the even-numbered line is used as the video signal for the other eye, and vice versa in the next frame. The odd-numbered lines are used as the video signal for the other eye, and the even-numbered lines are used as the video signal for the other eye. Thereafter, this is alternately repeated for each frame, transmitted, recorded, and recorded at this time. The left-eye video signal and the right-eye video signal are related by an odd field and an even field that are out of phase by one field. It is characterized in that the engagement is maintained.

In the present invention, as another means for achieving the above object, as in the invention described in claim 2, a left-eye video signal and a right-eye video signal constituting a stereoscopic video are synthesized. In the method of transmitting and recording a stereoscopic video composite signal to be transmitted and recorded as two non-interlaces, the odd-numbered lines of one frame of the stereoscopic video composite signal are used as one eye video signal, and the even-numbered lines are used. The video signal for the other eye is transmitted and recorded, and at this time, the video signal for the left eye and the video signal for the right eye are maintained in an odd field and an odd field relationship. A field and an even field are then transmitted alternately and repeatedly for each frame, or an odd-numbered line of one frame of a stereoscopic video composite signal is transmitted. In the next frame, the odd-numbered line is used as the other eye video signal, and the even-numbered line is used as the other eye video signal. This is characterized in that the video signal is transmitted and recorded alternately and repeatedly for each frame. At this time, the phase relationship between the left-eye video signal and the right-eye video signal to be recorded is a general video signal starting with an odd field.

According to the invention described in claim 3, when recording a stereoscopic video composite signal of a system in which a left-eye video signal and a right-eye video signal composing a stereoscopic video are recorded, an odd / even line and a left / right A combination of a video signal and a combination of an odd field and an even field are specified and recorded, and reproduction and display timing of a stereoscopic video are synchronized and controlled by the specifying means.

An invention according to claim 4 is a stereoscopic video display device that displays the stereoscopic video according to any one of claims 1 or 2, wherein the stereoscopic video display device includes: The right-eye video signal and the left-eye video signal are placed on the line and the even-numbered line, respectively, and the right-eye and left-eye video signals are alternately switched for each frame, so that the left and right signals are respectively In addition to interlacing, the signal for the right eye and the signal for the left eye are separated for each frame by simultaneously switching the light source and the polarization filter for the light source. The invention described in claim 5 is based on the technical premise of the invention described in claim 4, and when displaying a two-dimensional video signal, switching of the light source of the stereoscopic video device and the polarization filter for the light source is stopped simultaneously. The feature is that 2D video and 3D video are compatible with each other by turning on all lights.

Further, the invention according to claim 6 is based on the stereoscopic video signal recorded by the recording / reproducing method of the stereoscopic video signal according to any one of claims 1 to 3, A stereoscopic video is displayed by the stereoscopic video display device according to any one of claims 5 to 13.

Brief Description of Drawings

FIG. 1 is a diagram of a stereoscopic video system according to an embodiment of the present invention.

FIG. 2A is an explanatory diagram showing an example of synchronization of two cameras in the stereoscopic video system, and FIG. 2B is an explanatory diagram showing an example of synchronization of an integrated camera having left and right eye CCDs.

FIG. 3 is an explanatory diagram showing an example of combining stereoscopic video signals in the stereoscopic video system. FIG. 4 is an explanatory diagram showing the relationship between the light emission switching at timing 1 and timing 2 and the display timing of a stereoscopic video composite signal in the stereoscopic video display device.

FIG. 5 is an explanatory diagram showing an example of compressing and recording and storing a stereoscopic video signal synthesized by the present system.

FIG. 6 is an explanatory diagram showing a configuration of the stereoscopic image display device.

FIG. 7 is an exploded perspective view showing the configuration of the stereoscopic video display device in an exploded manner.

FIG. 8 is an explanatory diagram showing another example of the relationship between the light emission switching at timing 1 and timing 2 and the display timing of the stereoscopic video composite signal in the stereoscopic video display device of the stereoscopic video system.

FIG. 9 is an explanatory diagram showing still another example of the relationship between the light emission switching at timing 1 and timing 2 and the display timing of the stereoscopic video composite signal in the stereoscopic video display device. FIG. 10 is an explanatory diagram showing an example of a state where the phases of the fields in the left and right eye cameras match.

FIG. 11 is an explanatory diagram showing another example of a state where the phases of the fields in the left and right eye cameras match. FIG. 12 (a) is a principle diagram of a conventional parallax barrier type stereoscopic image display device, and (b) is a principle diagram of a lenticular type stereoscopic image display device.

FIG. 13 (a) is a plan view of an optical system of a conventional stereoscopic image display device, and FIG. 13 (b) is an exploded perspective view of a liquid crystal display device.

FIG. 14 is an explanatory diagram showing an example of synthesis of a conventional general stereoscopic video signal.

FIG. 15 is an explanatory diagram showing an example of synthesizing a stereoscopic video signal when a conventional synchronization control device is not provided. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments described below are preferred specific examples of the present invention, and therefore various technically preferable limits are given. However, the scope of the present invention is not limited to the following description. The embodiment is not limited to this example unless otherwise stated.

As shown in FIG. 1, the three-dimensional image system of the present invention includes a right-eye camera 11 and a left-eye camera 12 for photographing left and right images, a synchronous control device 14 for controlling them, and an identification information input device. 13, a stereoscopic video composite signal recording / converting device 10, a stereoscopic signal recording / reproducing device 20, a stereoscopic video display device 60, and an identification information detecting device 90 for controlling the same. Have been.

In this embodiment, an interlaced camera is used for the left and right eye cameras 11 and 12. However, this camera may be a non-interlaced camera or a high-vision camera. It may be used. Also, instead of using two cameras, a camera for stereoscopic video shooting, in which one camera shoots left and right images simultaneously, may be used. Of course, it may be a computer graphic (CG device) that has the function of drawing left and right images using a computer.

The left and right video television cameras 1 1 and 1 2 use the control signal from the synchronous control device 14 to control the time axis relationship between the left video signal and the right video signal on an even field, an odd field or an odd field, and an even field. Is controlled by the synchronization control device 14 so as to maintain any one of the combinations described above, and the synchronization control is performed so that the time axes always coincide. This sync In the conventional method without the control device 14, the video output of the left and right cameras is designed to always start from an odd field, as shown in Figs. 15 (a) and (b). When converting to a video composite signal, there is a problem that images in which the timings of the left and right camera images are shifted are combined.

Fig. 2 (a) shows a specific example of a method for synchronizing two cameras. The two cameras operate in the external synchronization mode, and supply a vertical synchronization signal shifted by one vertical synchronization (field) from the synchronization controller 14 to the left-eye camera as the external synchronization signal.

Since the video output from each of the two cameras operates based on the external synchronization signal, it is output to the stereoscopic video composite signal recording / converting device 10 with a one-field phase shift.

FIG. 2 (b) shows a specific example of a method of synchronizing an integrated camera having CCDs for left and right eyes. By shifting the timing of the vertical sync signal supplied to each CCD from the sync signal generator built into the camera by one field, the video output from each CCD becomes a stereoscopic combination of odd and even fields. It is output to the video synthesis signal recording and conversion device 10.

FIG. 3 shows a situation in which the above-described conventional problem has been solved by using the synchronous control device 14. At the same time, the synchronization control device 14 supplies a reference signal for inserting identification information to the identification information input device 13. In other words, the synchronization control device 14 also has a function as a synchronization signal generator that serves as a reference for the entire system.

That is, as shown in FIG. 3, the stereoscopic video composite signal recording / converting device 10 divides the left and right video into odd and even lines and synthesizes them (line-divided stereoscopic signal), and performs non-interlaced stereoscopic video. It is converted to a composite video signal (see Fig. 3 (c)). This stereoscopic video composite signal video can be directly viewed by a live camera on a stereoscopic video display device 60 capable of displaying a line-divided stereoscopic signal.

The non-interlaced stereo signal recording / reproducing device 20 records the stereoscopic video composite signal converted into the line-divided stereo signal in a non-interlaced manner, and also transmits the identification signal from the identification information inserting device 13 to the image. It is superimposed on a part or inserted during the video blanking period (synchronous signal period).

The non-interlaced three-dimensional signal recording / reproducing apparatus 20 includes a recording medium 40, for example, a Blu-ray recorder, a D-VHS, a hard disk drive, a DVD disk, and the like. Is connected, and the stereoscopic video composite signal is stored in a high-density and large-capacity medium.

In addition, in order to compress and record the image by a known method such as MPEG, the three-dimensional signal conversion processing device 10 may, for example, arrange the left and right image signals in one frame as shown in FIG. It has a stereoscopic video composite signal output to divide and combine (upper and lower stereoscopic signals), and is compressed by the MPEG video compressor 30 and recorded in the MPEG video recorder / player 50 together with the identification signal. At this time, if the conversion is performed by the method disclosed in the PCT application (PCT / JP03ZO5712) filed earlier by the present inventor, it is possible to prevent the image from being disturbed due to video compression and expansion.

A recording medium 40, for example, a Blu-ray recorder, a D-VHS, a hard disk drive, a DVD disk, or the like is connected to the MPEG video recording / reproducing device 50, and the stereoscopic video is synthesized on a high-density, large-capacity medium. The signal is saved. Of course, stereoscopic video contents can be created in the same format as recording media, and can also be used for stereoscopic video broadcasting.

These recording media are reproduced by the non-interlaced stereoscopic signal recording / reproducing device 20 or the MPEG video recording / reproducing device 50, and the stereoscopic video composite signal display conversion device 80 converts the recording media into a video signal for a stereoscopic display device. It is converted and displayed on the 3D image display device 60. In this embodiment, the stereoscopic video display device 60 capable of displaying a line-divided stereoscopic signal is used. However, in the present invention, the stereoscopic video display means is not particularly limited. Even those can be used.

In the case of the MPEG video recording / reproducing device 50, the stereoscopic video signal needs to be expanded, so the MPEG video expansion device 70 performs the expansion process and the stereoscopic video composite signal display conversion device 80 separates the lines. It is converted into a stereoscopic signal and displayed on the stereoscopic video display device 60. The stereoscopic video composite signal display conversion device 80 outputs a stereoscopic video signal for display to the stereoscopic video display device 60, and at the same time, sends an identification signal to the identification information detection device 90 to control the light source of the stereoscopic video display device 60, By performing control for signal processing, etc., a high-quality stereoscopic video display can be realized.

In addition, the stereoscopic video composite signal display conversion device 80 is configured to have a function of outputting a right video or a left video signal among the stereoscopic video composite signals. D) Video display device 61 is also supported.

The above description is the flow from shooting to display by the system of the present invention. Hereinafter, the mechanism of recording and playback of high-quality stereoscopic video will be described in detail.

As shown in FIGS. 3 (a) and 3 (b), the stereoscopic signal recording / converting device 10 is a series of interlaced video signals input from the left and right TV cameras 11 and 12 every 1/60 second. Signal R 1 EL 10, R 20, LIE, R 2 E, L 20, L 30, L 2 L (In this specification, L is left-eye video, R is right-eye video, Indicates a frame number, Ο indicates an odd field, and Ε indicates an even field).

Then, the stereoscopic signal recording / conversion processor 10 converts the set of non-interlaced stereoscopic video composite signals starting from L and R into a pair of non-interlaced stereoscopic video composite signals as shown in Fig. 3 (c). I do. At this time, the identification information insertion device 13 changes or superimposes or inserts the identification signal in an area outside the video display depending on whether the identification signal starts with L or R. By performing such a conversion process, as shown in Fig. 3 (c), all the video signals from the camera are converted into a series of signal formats in the stereoscopic video composite signal sent to the recording device. Unlike the conventional method, there is no time axis shift between the left and right and the video, and no field jump as shown in Fig. 16 which is the conventional method, so that a high-quality stereoscopic video signal can be recorded. Next, the relationship on the time axis of the video signals of the left and right television cameras is not controlled by any combination of the even field, the odd field or the odd field, and the even field. Explain the case of receiving in a relationship.

In this case, as shown in FIG. 12, the stereoscopic video recording / converting device 10 converts the video signal obtained by combining the odd fields and the even fields of the left and right video signals into a stereoscopic video composite as shown in FIG. 12 (c). A set of two non-interlaced video signals starting with L and starting with R like a signal are converted to a stereoscopic composite signal of one race, or as shown in Fig. 13 (c), a set of two The signal is converted into a non-interlaced stereoscopic video composite signal, and is converted into a set of two non-interlaced stereoscopic video composite signals starting from L and R by the stereoscopic video composite signal display converter 80 during playback.

In both the cases shown in FIGS. 12 and 13, there is no shift in the time axis of the left and right images, and recording of a stereoscopic image signal is possible without field skipping, but compared to the method shown in FIG. In other words, since the left and right cameras use the same odd or even line, it is not possible to obtain exactly the same vertical resolution, and there is vertical displacement. For this reason, the method shown in FIG. 3 is the most suitable for realizing the present invention.

In addition, when recording is performed using a known video compression technique, since the compression processing is performed in units of frames, the left and right video as shown in FIG. 3 is divided into odd and even lines. When used for line-divided stereo signals), odd and even lines are mixed, so it is irreversible (it does not return to the original) and this recording method cannot be used. Therefore, in the present invention, the three-dimensional signal recording and conversion processing device 10 performs the signal conversion process shown in FIG.

That is, as shown in FIGS. 5 (a) and 5 (b), the three-dimensional signal recording / conversion processing device 10 outputs a series of signals input from the left and right television cameras 11, 12 every 1/60 second. Receives interlaced video signals.

Then, as shown in FIG. 5 (c), the three-dimensional signal recording / conversion processing device 10 has a set of two pairs in which the upper half is R and the lower half is L, or the upper half is L and the lower half is R. Convert to a non-interlaced stereoscopic video composite signal. At this time, as shown in Fig. 5 (d), the video signals from the left and right cameras are narrowed by the interlace line spacing, and the left and right video signals are combined into one non-interlaced signal without thinning. At this time, the identification information input device 13 changes or superimposes or enters the identification signal in an area outside the image display. By recording using this conversion method, it becomes possible to use the known MPEG video compression device 30, the MPEG video recording / reproducing device 40 and the MPEG video decompression device 70. However, if a conventional method as disclosed in Japanese Patent Application Laid-Open No. H10-2757526 is used, the reversibility of the boundary between the upper and lower images is lost and the image is disturbed. If one of the left and right LR images is recorded upside down, left and right by the method previously filed, the boundary image disturbance that is a problem during image compression and expansion will not occur.

When recording / reproducing a plane (2D) video signal, the odd field and the even field are converted into a frame signal that is synthesized as it is, and recorded as a non-interlaced signal together with a 2D video identification signal. Or, interlace signals are interleaved and recorded as non-interlace signals.

Next, a mechanism for displaying a high-quality stereoscopic video using the present invention will be described in detail. Figures 6 and 7 show the configuration of the stereoscopic video display device. In FIG. 6, reference numeral 62 denotes a liquid crystal display. A Fresnel lens 63 is disposed at a predetermined distance behind the liquid crystal display element 62. The Fresnel lens 63 has a concentric concave and convex lens surface on one side surface, and is arranged to emit light incident from the center focal point on the back side of the Fresnel lens as substantially parallel light.

A diffusion plate 64 having a function of diffusing only in the vertical direction is attached to the front of the liquid crystal display element 62, and light passing through the liquid crystal display element 62 is emitted to the viewer side through the diffusion plate 64. Is done.

Reference numeral 65 denotes a backlight light source for irradiating the liquid crystal display element 62 from behind. In this embodiment, as shown in FIG. 7, the pack light source 65 is divided into four blocks that can be controlled individually.

The backlight light source block 65 UR and backlight light source block 65 D are light sources for the viewer's right eye zone, and the backlight light source block 65 UL and the pack light source block 65 D are light sources for the viewer's left eye zone. It is. '

On the front side (irradiation side) of the backlight light source 65, a right-eye polarization filter unit 66U and a left-eye polarization filter 66D are arranged.

The right-eye and left-eye polarization filters 66U and 66D are configured as linear polarization filters whose polarization directions are orthogonal to each other, and have, for example, a right-up-polarization plane and a left-up-polarization plane.

The liquid crystal display element 62 is of a light transmission type. As shown in FIG. 7, two liquid crystal filters 62 1 and 62 2 arranged on both sides of the liquid crystal panel 62 are formed. Have. In the liquid crystal panel 62, for example, liquid crystal twisted 90 degrees is accommodated in a pair of alignment films, and when no voltage is applied between the pair of alignment films, the incident light is rotated 90 degrees and emitted, and the voltage is applied. When is applied, the incident light is emitted without rotation. The two polarizing filters 6 2 1 and 6 2 2 alternately arrange linear polarizing filter lines L a and L b orthogonal to each other for each horizontal line of the liquid crystal panel, and at the light source side (back side). The linear polarization filter lines L a and L b facing each other on the observation side (front side) are configured to have orthogonal polarization directions. Accordingly, since the light from the right-eye polarization filter unit 66 U or the left-eye polarization filter unit 66 D enters from only the linear polarization filter line units L a and L b having the same polarization plane, each of them has a 1 The light enters every other horizontal line, and each of the entered lights is transmitted when no voltage is applied, and is cut off when a voltage is applied.

In addition, the liquid crystal panel 620 of the liquid crystal display element 62 has the right-eye image information and the left-eye image information alternate every horizontal line in accordance with the transmissive lines of the two polarizing filters 62 1 and 62 2. It is configured to be displayed in.

For this reason, if the viewer looks at the liquid crystal display element 62 at a clear viewing distance, only the image for the right eye enters the right eye 7OR, and only the image for the left eye enters the left eye 70L independently of each other. It can be viewed as a stereoscopic image by 3D perception based on parallax.

In the example of the liquid crystal display device shown in FIG. 7, two polarizing filters 62 1 and 62 2 arranged on both sides of the liquid crystal panel 620 are orthogonal to each other every one horizontal line of the liquid crystal panel. Although linear polarization filter line sections L a and L b are arranged alternately, considering cost, each polarization filter uses a linear polarization filter with the same polarization plane, and the polarization angles of both polarization filters are orthogonal to each other. The one set in the direction can also be used. In this case, the same effect can be obtained by arranging a 12-wave plate on the polarizing filter on the backlight light source side every other horizontal line of the liquid crystal panel 620.

Next, as shown in FIG. 4 (a) and FIG. 7, the backlight light source 65 used in the present invention is composed of four blocks (five white LEDs) arranged at the upper and lower two stages and at the center on the left and right. The upper part 65 5UR '65 UL and the lower part 65 DR * 65 DL are arranged side by side and two levels above and below, so that these LED blocks can be individually controlled for lighting. It is configured.

The upper-stage polarization filter 66 U and the lower-stage polarization filter are located at positions corresponding to the LED blocks of the upper section 65 UR and 65 UL and the lower section 65 DR and 65 DL. 6 6 D is arranged. These polarizing filters 66U and 66D are configured as polarizing filters (FIG. 4 (c)) whose polarization directions are orthogonal to each other, and have, for example, a right-down-polarization plane and a left-down-down polarization plane.

The light source lighting control means 105 receives the signal from the identification signal control means 103 and receives the signal shown in FIG. As shown in), at the timing 1, the upper left 65 UR and the lower right 65DL of the LED block emit light, and at the next timing 2, the lower left 65 DR and the upper right 65 UL of the LED block emit light. This switching is performed with the identification information signal superimposed and inserted with the stereoscopic video composite signal, and the display timing of the stereoscopic video composite signal displayed on the liquid crystal display device 6≥ is synchronized.

As shown in FIG. 4B, the liquid crystal display panel 62 displays the stereoscopic video composite signal 1 at timing 1 and the stereoscopic video composite signal 2 at timing 2 under the control of the video display control means # 04.

At this time, as shown in FIG. 4 (a), the backlight light source 65 is synchronized with the display conversion timing of the liquid crystal display panel 62 and is connected to the upper right irradiation unit 65 UR and the lower left irradiation unit 65DL. The lower right irradiator 65 DR and the upper left irradiator 65 UL turn on alternately. In this embodiment, the viewer 70 is located at the center of the front of the stereoscopic image display device 60, and each of the five LEDs is set to blink at the center line of both eyes.

As shown in FIG. 7, at the timing 1, the left eye 70L of the viewer arranged in the left eye zone is emitted from the lower right irradiation unit 65DL of the pack light source 65, and the left-eye polarization filter 66D Then, an image is transmitted through the left display polarization region of the polarization filter 621. In the right eye 70R of the viewer arranged in the right eye zone, the light from the upper left illuminating unit 65UR passes through the right eye polarizing filter 66U, and the left display polarizing region of the polarizing filter 621 is formed. The transmitted image is incident.

Subsequently, at timing 2, 70 L of the left eye of the viewer placed in the left eye zone is emitted from the upper right irradiating unit 65UL of the pack light source 65, passes through the left eye polarizing filter 66U, and passes through the polarizing filter 66U. An image transmitted through the left display polarization region of the 621 enters. In addition, light from the lower left irradiating unit 65DR passed through the right-eye polarization filter 66D and passed through the left-display polarization region of the polarization filter 621 to the right eye 70R of the viewer arranged in the right-eye zone. An image is incident.

At this time, since the switching timing of the backlight light source 65 and the switching timing of the stereoscopic image display are synchronized, the viewer 70 is displayed on the same horizontal line of the liquid crystal display element at timing 1 and timing 2. The three-dimensional video signal is alternately displayed, so that the viewer 70 can see the video on all scanning lines for both the left and right eyes. Monkey.

When displaying a 2D image on the stereoscopic video display device 60 according to the present embodiment, switching of the backlight light source is stopped based on the 2D recognition information signal sent from the identification information detection device, By turning on all parts, it is possible to display high-resolution and bright 2D videos. Also, in the process of using 3D images for broadcasting in the future, in the situation where commercials are 3D broadcasts and general programs are 2D broadcasts, the 2DZ 3D mode can be automatically switched using identification information signals. Can be made possible.

As described above, in the conventional example, the left and right images are displayed on the liquid crystal display element 62 because the polarization plane of the emitted light source is fixed to either the lower right or the lower left from the pack light source 65. Although one horizontal line position (odd line and even line) is determined, in the present embodiment, the polarization plane of the light source that cannot be emitted from the backlight light source 65 and the display position of the video signal to be displayed are simultaneously switched. The left and right images can be alternately displayed on the same horizontal line of the liquid crystal display element 62, and the vertical resolution can be increased.

In the present embodiment, a white LED array having two stages, upper and lower, and a linear polarization filter are combined as a backlight light source, but a circularly polarized light source may be used instead of linearly polarized light. A method may be used in which a liquid crystal panel having a polarization angle switching function is arranged in front of the light source in a horizontal row of light sources and the polarization angle is changed at the center.

Also, as shown in Fig. 9 (c), a polarization filter with a different deflection angle is arranged in the white LED block arranged as shown in Fig. 9 (a), and the same effect is obtained by individually controlling the light sources. Can be

Also, at timing 1, the upper left 65 UL and the upper left 65 UR of the LED block are lit at timing 1 by a method composed of a backlight light source a and a polarizing filter c as shown in Fig. 8. At the next timing 2, the lower right 65 DL and the lower right 65 DR of the LED block emit light. This switching is performed by the identification information signal superimposed and inserted together with the stereoscopic video composite signal, and the same result can be obtained by synchronizing the display timing of the stereoscopic video composite signal displayed on the liquid crystal display device 62. . Further, in the present invention, the display means is not particularly limited, and in addition to the above-mentioned transmission type liquid crystal display device, a reflection type, direct-view type liquid crystal display device, plasma display device, EL display device and the like are used. It is also possible. Industrial applicability

According to the invention as set forth in claim 1, the odd-numbered line of one frame of the stereoscopic video composite signal is set as one eye video signal, and the even-numbered line is set as the other eye video signal. In the frame, on the other hand, the odd-numbered lines are used as the video signal for the other, and the even-numbered lines are used as the video signal for the first eye. Thereafter, this is alternately and repeatedly transmitted and recorded for each frame. At this time, the left-eye video signal and the right-eye video signal to be recorded were configured so that the relationship between the odd field and the even field shifted by one field quantile 枏 was maintained. Moving images with no vertical displacement and smooth movement can be displayed smoothly, and high-quality stereoscopic video recording can be centrally managed on a single tape or disk. :

According to the invention set forth in claim 2, the odd-numbered lines of one frame of the stereoscopic video composite signal are transmitted as one eye video signal, and the even-numbered lines are transmitted as the other eye video signal. At this time, the left-eye video signal and right-eye video signal recorded at this time maintain the relationship between the odd field and the odd field, and in the next frame, the even field and the even field are reversed. Thereafter, this is alternately repeated for each frame and transmitted. Alternatively, the odd-numbered lines of one frame of the stereoscopic video composite signal are used as one video image signal, and the even-numbered lines are used as the other video image signal. In the next frame, odd-numbered lines are used as the video signal for the other eye, and even-numbered lines are used as the video signal for the other eye. It is configured to transmit and record back, so that vertical resolution is not lost and moving images can be displayed smoothly, and high-quality stereoscopic video recording is centrally managed on a single tape or disk etc. In addition, according to the present invention, since it is not necessary to shift the field, a general-purpose camera can record a high-quality stereoscopic image.

According to the invention described in claim 3, when recording a stereoscopic video composite signal of a system in which the left-eye video signal and the right-eye video signal constituting the stereoscopic video are combined, the odd-numbered even-line and the left-right video signal are recorded. Combination and Odd 'Identify and record combinations between even fields, Since the reproduction and display timing of the stereoscopic video are controlled in synchronization by the specifying means, the reproduction and display timing can be accurately and quickly synchronized. In addition, when editing stereoscopic images, it became possible to quickly search for edit points and connect them accurately using specific means.

According to the invention described in claim 4, the right-eye signal and the left-eye signal are arranged on the odd-numbered line and the even-numbered line of one frame image to be displayed, respectively. By alternately switching the left-eye signal line, the left and right signals are interlaced, and the right-eye signal and left-eye signal are separated by switching the light source and the polarizing filter for the light source simultaneously for each frame. Therefore, the viewer can see all the images for the left and right eyes, and can display it at twice the resolution of a conventional stereoscopic display device. As a result, the problem of missing characters, diagonal lines, and jumps in the time axis of moving images can be solved at once, and it can be used for televisions, movies, home-use arcade game machines, mobile phones, and simulations. The effect is enormous in all video display devices that use stereoscopic images and other display devices.

According to the invention as set forth in claim 5, when displaying a two-dimensional video signal, the switching of the backlight light source and the polarization light filter for the pack light source of the three-dimensional video device is simultaneously stopped. Even if video signals and 3D video signals are mixed, it is automatically determined and 2D video can be displayed as 2D video, and 3D video can be displayed as 3D video. When displaying a 2D video image using a stereoscopic video display device, it is possible to solve a reduction in vertical resolution that cannot be realized by a conventional stereoscopic video display device.

Further, according to the invention described in claim 6, the stereoscopic image display device described in any one of claims 4 and 5 can be used as the stereoscopic image display device described in any one of claims 1 to 3. The stereoscopic video signal is displayed based on the stereoscopic video signal recorded by the recording / playback method described above.In addition to the effects of claims 4 and 5, the lack of vertical resolution is eliminated. , Movement can be displayed smoothly, vertical displacement is corrected, and high-quality 3D images that are easy to read can be accurately reproduced and displayed.

Claims

The scope of the claims

1. In the method of synthesizing the left-eye video signal and the right-eye video signal that compose the stereoscopic video and transmitting it as one non-interlace, recording and reproducing the stereoscopic video composite signal, one frame of the stereoscopic video composite signal is used. In the next frame, the odd-numbered line is used as the other eye video signal, the even-numbered line is used as the other eye video signal, and the even-numbered line is used as the other eye video signal. The first line is used as one eye video signal, and thereafter, this is alternately repeated for each frame, transmitted and recorded, and at this time,

'A stereoscopic video signal recording / reproducing method characterized in that the left-eye video signal and the right-eye video signal to be recorded maintain the relationship between the odd field and the even field which are out of phase by 1' field.

2. In the method of synthesizing the left-eye video signal and the right-eye video signal that constitute the stereoscopic video and transmitting it as one non-interlace, and recording and reproducing the stereoscopic video composite signal to be recorded, one frame of the stereoscopic video composite signal is used. The odd-numbered lines are used as the video signal for one eye, and the even-numbered lines are transmitted and recorded as the video signal for the other eye.

'The left-eye video signal and right-eye video signal to be recorded maintain the relationship between the odd field and the odd field.In the next frame, the even field and the even field are reversed. Repeatedly transmitting, or the odd-numbered line of one frame of the stereoscopic video composite signal is used as one eye video signal, and the even-numbered line is used as the other eye video signal, and in the next frame, Conversely, odd-numbered lines are used as the other eye video signal, and even-numbered lines are used as one eye video signal, and thereafter, these are alternately repeated for each frame, transmitted, and recorded. How to record and play back stereoscopic video signals.

3. When recording a stereoscopic video composite signal that combines the left-eye video signal and the right-eye video signal that compose the stereoscopic video, the combination of the odd / even line and the left / right video signal and the odd / even field A recording / reproducing / displaying method of a stereoscopic video signal, wherein a combination is specified and recorded, and the reproduction and display timing of the stereoscopic video are controlled in synchronization with the specifying means.

4. A stereoscopic video display device for displaying a stereoscopic video according to any one of claims 1 and 2, wherein the odd-numbered lines and the even-numbered lines of one frame image to be displayed are displayed. A right-eye video signal and a left-eye video signal are placed on each line, and the right-eye video signal and the left-eye video signal are alternately switched for each frame, so that the left and right video signals interlace, A stereoscopic image display device characterized by separating a right-eye video signal and a left-eye video signal for each frame by simultaneously switching a light source and a light source polarization filter.

5. The stereoscopic video display according to claim 4, wherein, when displaying a planar video signal, the switching of the light source and the polarizing filter for the light source of the stereoscopic video display device is stopped at the same time, and all the lights are turned on. apparatus.

6. A stereoscopic video is displayed based on the stereoscopic video signal recorded by the recording / reproducing method of the stereoscopic video signal according to any one of claims 1 to 3. The stereoscopic image display device according to claim 4 or claim 5.