JP2659710B2 - Image information display device for presentation - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image creating / editing apparatus having a digital image processing function, and particularly to drawings and photographs used for so-called presentations at conferences and lectures. And a presentation image information display device having a function of displaying image data such as text.

<Prior Art> Conventionally, an image display device used for a presentation is an overhead projector that enlarges and projects an image on a film by an optical method, a slide projector that projects an image of a slide film on a screen by light of an optical lamp, There is a combination of a video camera and a video monitor. However, since the above-mentioned overhead projector and slide projector display the image written on each film as it is, it takes a great deal of time to create a document in order to obtain a good-looking image. Further, for the same reason, it is difficult to perform dynamic display such as movement and change of an image, and it is not possible to perform effective display. Further, the number of screens is limited to one and the luminance is low Therefore, in the case of a presentation for a large number of people, there are disadvantages such as difficulty in displaying a satisfactory image.

Therefore, as a means of presentation in a conference room or the like, a display image of presentation information is created by image generation technology or image processing technology using a computer, and the image information to be displayed on a large projector, a display for a speaker, or the like. A display device has been proposed. This apparatus uses digital image processing technology to create in advance data of a display image and data relating to a process of changing an image being displayed, and to generate image data based on the prepared display image data. It is created and displayed on a large projector or a speaker display, and the displayed image is changed based on data relating to the image changing process. Therefore, as compared with the above-mentioned overhead projectors and slide projectors, various images can be displayed and changed, dynamic images can be displayed, and the like, and there is an advantage that a good-looking image can be displayed.

<Problems to be Solved by the Invention> However, since the conventional image information display device using a computer displays only the same image as the image for the audience on the display for the lecturer,
When the speaker explains the displayed image, the speaker must give explanations while looking at notes about the explanations or relying only on memory. There is a problem that insufficient portions occur. Also, since images are displayed in the order set at the time of editing, if it is necessary to randomly display the image data desired by the speaker during the explanation or during the question and answer, the image will be displayed The speaker has to know the order of the image data, which is troublesome.Furthermore, the image data must be advanced forward or backward one by one to obtain the desired image. There is a problem that the speaker does not proceed smoothly.

Therefore, an object of the present invention is to display an image for explanation on each image data on the image display means for the speaker, and to clearly show the speaker how to explain,
It is an object of the present invention to provide a presentation image information display device which allows a speaker to select desired image data immediately by looking at an image on a speaker image display means.

<Means for Solving the Problems> In order to achieve the above object, an image information display device for presentation of the present invention reads image display data stored in a non-volatile external memory by a reading unit and generates image data. Means for converting the image display data relating to the image for the audience into image data for the audience by means
In a presentation image information display device that is stored in an image data memory and displays an image for a listener on an image display unit for a listener based on the stored image data for the audience, the image data generation unit includes the nonvolatile memory. The image display data relating to the image used for the description of the audience image stored in the external memory is converted into display image description image data, and a plurality of image representations of the reduced images of the audience image are provided. And a second image data memory for storing the display image description image data obtained by the image data generating means and the original reduced image data, and the first image data memory. And the second image data for the audience stored in the
Image synthesizing means for synthesizing the display image explanation image data corresponding to the audience image data stored in the image data memory to generate synthetic image data, and a synthetic image obtained by the image synthesizing means Speaker image display means for displaying a speaker image based on data, or displaying a plurality of reduced images of the audience image based on the reduced original image data stored in the second image data memory And when a desired image is selected from the reduced images displayed on the speaker image display means, the corresponding listener image and the speaker image are displayed on the listener image display means. Is displayed on the speaker image display means.

Further, the image data generating means in the image information display device for presentation of the present invention stores an identifier indicating that a lecture has been displayed in data for image display relating to a reduced image of the image for the audience, and It is desirable that the display image display means displays the presence or absence of the display in the lecture in the reduced images of the plurality of listener images based on the identifier.

<Operation> When the non-volatile external memory in which the data for image display is stored is set in the reading means, the data for image display is read by the reading means, and the image data generating means relates to the image for the audience. Audience image data converted from the image display data is stored in the first image data memory, and a display image description converted from the image display data related to the image used for the description of the audience image is stored. The image data for use is stored in the second image data memory. Then, the image combining means converts the image data for the listener stored in the first image data memory and the image data for display image explanation corresponding to the image data for the listener stored in the second image data memory. The images are synthesized to generate synthesized image data. Then, a speaker image is displayed by the speaker image display means based on the composite image data.

Thus, a composite image of the image for the audience and the image for explaining the display image is presented to the speaker.

The reduced original image data obtained by converting the image display data relating to the reduced image of the audience image stored in the non-volatile external memory by the image data generating means is stored in the second image data memory. You. Then, the speaker image display means displays a plurality of reduced images of the listener image based on the document reduced image data stored in the second image data memory. Thus, a reduced image of the image for the audience is presented to the speaker, and when the speaker selects a desired image from the reduced image, the corresponding image for the audience and the image for the speaker are displayed by the image display means for the audience and the lecturer. The image can be displayed on each of the speaker image display means, and the desired auditor image and the speaker image can be immediately displayed for the explanation.

Further, an identifier indicating that the lecture has been displayed is stored in the image data generating means in the image display data relating to the reduced image of the attendee image in the image data generating means, and the lecturer image display means stores the plurality of images based on the identifier. The presence / absence of the presentation in the lecture is displayed in the reduced images of the audience images. Thus,
The speaker is presented with the unused audience image.

<Example> Hereinafter, the present invention will be described in detail with reference to an illustrated example.

In FIG. 1, a CPU (Central Processing Unit) 1 serving as image data generating means performs overall control of an image information display device (hereinafter referred to as this device), image generation, image change processing, and the like. Pixel data is written to the first image memory 3 or the second image memory 7 in accordance with a command code string read by the device 2 and output via the interface 5.

The floppy disk device 2 is a data reading means, and reads data of an instruction code string from a floppy disk which is a nonvolatile external memory. The instruction code sequence is edited and created by an image editing device (not shown) provided separately from the present device based on the image information and the information for display change processing. The floppy disk device 2 is connected to the CPU 1 via an interface 5 and a system bus 6.

The first image memory 3 has an image display function, stores image data to be displayed, and generates a video signal corresponding to the image data. With this video signal, an image is displayed on a large projector 4 having a large screen of, for example, 100 inches, which is an image display means for the audience. The large projector 4 may be a color CRT (cathode ray tube) monitor or a configuration using a plurality of these monitors. The first image memory 3 is connected to the CPU 1 via the system bus 6.
Connected to

The second image memory 7 has an image display function similarly to the first image memory 3, and has a display image explanation image prepared for explaining an image displayed on the large projector 4. In addition to storing data or original reduced image data for displaying a plurality of images at a time, a video signal corresponding to the image data is generated. For this reason, the second image memory 7 may have a smaller number of bits per pixel and a smaller number of expressible gradations and colors than the first image memory 3. The second image memory 7 is connected to the CPU 1 via the system bus 6. A mixer 8 serving as an image synthesizing means synthesizes each video signal generated from the first image memory 3 and the second image memory 7 and outputs the synthesized signal to a monitor 9 which is an image display means for a speaker described later. The monitor 9 is provided on a console 12 for the speaker, as shown in FIG. 2, and a screen of the large projector 4 is displayed on the screen by a synthesized video signal input from the mixer 8.
An image in which an image based on the image data stored in the second image memory 7 is superimposed on the same image as the display image of FIG. The superimposition mode of the two types of images is obtained by displaying the image of the large projector 4 on the background of the image from the second image memory 7 having a transparent attribute.

A coordinate input device 15 is provided on the screen of the monitor 9. The coordinate input device 15 includes, for example, the following two types. That is, first, a large number of infrared light emitting diodes are arranged at equal intervals along the right side and the lower side of the screen of the monitor 9 and are arranged in a row, and the infrared light is arranged in a grid pattern in parallel with the screen. Let it go. A phototransistor is arranged at a position for receiving each infrared light along the left side and the upper side of the screen of the monitor 9, and the entire display screen of the monitor 9 is set as a coordinate input range. That is, by touching a finger with a desired position on the display screen, one infrared light in each of the left and right and up and down directions shaded by the finger is detected by the phototransistor, and the position of the pair of phototransistors is detected on the display screen. Is obtained. Secondly, a transparent conductive film having substantially the same shape as the display screen of the monitor 9 and having transparent switches arranged in a matrix is provided on the display screen. Then, by bringing the finger into contact with a desired position, the resistance value or the capacitance between the pair of electrodes of each transparent switch changes, so that the coordinates on the display screen specified by the finger are obtained. It is preferable to use one of the above two methods as the coordinate input device 15, and these are so-called touch panels and are commercially available. This coordinate input device 15
It is connected to CPU1 via interface 11.

As shown in FIG. 2, the console 12 is provided with a microphone 13 for the speaker, the floppy disk device 2, and a switch 14 for starting and stopping the device.

Next, the use and operation of the apparatus having the above configuration will be described with reference to FIGS.

First, prior to a lecture or a conference, data of image information and original reduced image information necessary to supplement the description of the image displayed on the large projector 4 is edited and created by the image editing and creating apparatus, and is stored on a floppy disk. The speaker prepares a floppy disk in which necessary data is stored in this way in advance, and after setting this floppy disk in the floppy disk device 2 of the console 12 of the present device installed in a lecture hall or the like. The user operates the switch 14 to instruct the start of image display. Then, the data is read from the floppy disk by the floppy disk device 2, and the CPU 1 writes pixel data into the first and second image memories 3, 7 in accordance with the instruction code sequence of the data read from the floppy disk. Display images are displayed on the large projector 4 and the monitor 9 by the video signals corresponding to the image data generated from the first and second image memories 3 and 7.

 Hereinafter, a specific example will be described in detail.

A. Image for explaining the display image of the large projector The speaker starts the image display by using the keyboard 10 shown in Fig. 1.
The CPU 1 reads the instruction code string via the floppy disk device 2, converts the instruction code string into image data, and transfers the image data to the first image memory 3 and the second image memory 7 for storage.
At this time, for an image to be displayed on the large projector 4 and displayed to the audience at the time of editing in advance, a flag added to data representing the image is set, and a lecture is given to explain the image displayed to the audience. By not setting the flag for the image displayed only on the monitor 9 for the user, the image data displayed on the large projector 4 and the image data for displaying the image displayed on the monitor 9 are distinguished. Then, the CPU 1 stores the image data with the flag set in the first image memory 3 and the image data without the flag set in the second image memory 7. The large projector 4 displays an image for the audience from the first image memory 3, while the monitor 9 for the speaker converts the image data from the first image memory 3 into the image data from the second image memory 7. Are superimposed on the image data for display image explanation.

FIG. 3 is an example of an image displayed by the speaker during the lecture. FIG. 3A is an image displayed on the monitor 9 for the speaker on the console 12 shown in FIG. FIG. 2B is an image displayed on the large projector 4 in FIG. 3 (a) and 3 (b), the pie chart drawn on the left side of the figure is an output image from the first image memory 3 shown in FIG. 1, while the pie chart drawn on the left side in FIG. 3 (a) is The description of the displayed pie chart is an output image from the second image memory 7.

That is, as shown in the example of FIG. 3, an explanatory note such as “each percentage of the arithmetic function and the type of contents included in the other” that is not displayed in the image that can be viewed by the listener with the large projector 4 is displayed. Is displayed only to the speaker through the monitor 9 for the speaker. Then, the speaker can see the image for explaining the display image and explain it to the listener. Therefore, the speaker does not need to see the memo for explanation, etc., and can give an accurate explanation only by looking at the monitor 9.

B. Reduced manuscript image The speaker reduces the plurality of image display data read by the floppy disk drive 2 shown in FIG. 1 to reduce the plurality of image data to the speaker monitor 9 at one time. It allows you to see all the images at once. In this case, there are the following two display methods.

(A) Creation of Reduced Original Image by Image Information Display Device The format of image display data read by the floppy disk device 2 is formed by a combination of a graphic drawing command and coordinate values drawn by the command. In addition, while the large projector 4 and the monitor 9 in this apparatus have a configuration of 512 pixels in each of the vertical and horizontal directions, the coordinates of each pixel in the first image memory 3 and the second image memory 7 are as shown in FIG. In the figure, the coordinates are normalized with 0 to 1 in the x-axis and y-axis directions with the lower left in the figure as the origin. Therefore, the coordinate values (x, y) on the first and second image memories 3 and 7 are
x, y is 0 ≦ x, y ≦ 1, and the coordinate values (x, y) included in the image display data read by the floppy disk device 2 are represented in accordance therewith.

First and second display on the large projector 4 and monitor 9
The coordinate values X, Y of the large projector 4 or the monitor 9 corresponding to the coordinate values (x, y) on the image memories 3, 7 are calculated as follows. That is, as shown in FIG. 5, the size of the screen to be displayed on the large projector 4 and the monitor 9 is "widt
h "and" height "(1 ≦“ width ”,“ height ”≦ 51
1) is multiplied by the coordinate value (x, y) of the image memory 3 or 7 storing the image data to be displayed by the CPU 1,
Further, the coordinate values of the drawing start point (“width-start”, “heig
ht-start ") (where 0 ≦“ width-start ”,“ height
−start "≦ 511), the coordinates (X, Y) on the large projector 4 and the monitor 9 corresponding to the coordinates (x, y) on the image memory 3 or 7 can be obtained. It is possible to draw a reduced image.

That is, the coordinates (X, Y) on the monitor 9 can be represented by the following equation using the coordinates (x, y) on the image memory 3 or 7.

By changing the screen size “width” and “heigh” in this way, an image of an arbitrary size can be drawn at the drawing start point (“wi
By changing “dth-start” and “height-start”), an image can be drawn at an arbitrary position on the monitor 9.

For example, when one image data is to be displayed as usual using the entire screen of the monitor 9, “width” = “height” = 511, “width-start” = “height-start” = 0 Equation (1) may be calculated. When displaying all the images on one screen, the CPU 1 first determines the optimum size “width” of each reduced image with respect to the number n of image data,
“Height” is calculated, and the drawing start point (“width-start”, “height-
start "), and substitutes the above into the above equation (1). Further, the coordinate values (x, y) of the data read by the floppy disk device 2 are sequentially substituted into the above equation (1). The reduced image is displayed at an optimal position on the monitor 9 by converting the coordinate value (X, Y) on the monitor 9.
If the image data is natural image data, the data is thinned out so that the size of the image becomes “width” and “height”, and drawing is started on the monitor 9 from the drawing start point. As an example of these displays, FIG. 6 shows an example in which all display image data is reduced and displayed on one screen. In this example, the number of display image data is 9 (n = 9).

FIG. 7 shows a flowchart for reducing the plurality of images at once and displaying them on the monitor 9. The CPU 1 reads the data by the floppy disk device 2 and counts the number n of only the image data for display on the large projector 4 in which the flag is set. Next, the entire screen is erased. Next, the size “width” and “height” of each image and the drawing start point of each image are calculated, and the drawing is performed by the above-described method. Further, a number corresponding to the order in which each image is displayed during the lecture is displayed on a part of each image. This is a number (0-
By incorporating a ROM in which the dot image of the font of 9) is recorded, the CPU 1 can display the corresponding numeral by writing the corresponding numeral into the corresponding image data in the second image memory 7.

(B) Manuscript reduced image creation by image editing device When editing the displayed image, the speaker reduces a plurality of image data used for the lecture and edits it as one data in the format shown in FIG. Stored on a floppy disk. At this time, in order to reduce the image data, instead of simply reducing the data by thinning it, FIG.
In the image data reduced as shown in FIG. 8, characters indicating the information of the image data before the reduction shown in FIG. 8B are left without omitting as much as possible, and only by looking at the reduced image, Create an image so you can easily see if it is the one shown. As described above, if the data of the reduced original image is created in advance at the time of editing, the data amount increases, but there is an advantage that the data can be displayed at high speed in the same time as displaying another image at the time of display. .

Normally, a method of displaying an image on the large projector 4 is performed as follows. That is, the value “count” for designating the display image is reset to 0 before the lecture. Each time the speaker presses a specific key of the keyboard 10 as a switch during the lecture, the value of “count” increases by one, and the CPU 1
Reads the display image data having a number equal to the value of “count” at that time by the floppy disk device 2.
Further, in order to display an image on the entire large projector 4, “width” = “height” = 511, “width-start” = “height-start” = 0, and the read coordinates (x, y) are set. The image data obtained by substituting into the equation (1) is stored in the first image memory 3, and the result is displayed on the large projector 4. Therefore, in this method, images can be displayed only in the order created in advance by the image editing apparatus. However, monitor 9
By referring to the original reduced image displayed on
A desired image can be randomly accessed. That is, the current value of “count” is temporarily saved to another location, and then the speaker substitutes the number corresponding to the desired image into “count” using the keyboard 10 while viewing the reduced original image on the monitor 9. I do. By doing so, the CPU 1 reads the display image data having a number equal to the value of “count” from the floppy disk and displays the desired image on the monitor 9 and the large projector 4 by the same processing as described above. it can. When returning to the original image, the original image can be displayed by substituting the saved "count" value for "count". In another method, when a speaker touches a desired image position on the screen of the monitor 9 while watching the reduced original image on the monitor 9, the position indicated by the finger is changed by the coordinate input device 15. Once detected, the coordinates are input via the interface 11. Then, the CPU 1 reads the display image data corresponding to the coordinates from the floppy disk, and performs image display processing, whereby the monitor 9 and the large projector 4 are displayed.
To be displayed.

Therefore, it is possible to save the trouble of moving the display image forward or backward one by one or moving backward and displaying the target image.
I can proceed with the lecture smoothly. In addition, when all the display image data prepared in advance in the lecture is not used, the unused image is displayed in the reduced original image on the monitor 9 to improve the convenience of the speaker. You can also measure. This can be realized by the CPU 1 storing the number of the already displayed image data.

As described above, the image display monitor of the speaker monitor 9 has the same image display mode as that of the large projector 4, the image display mode for explaining the display image, and the original reduced image display mode. The CPU 1 can transfer the image data to the first and second image memories 3 and 7 in the image format corresponding to the mode set from 10. Therefore, the speaker can freely select a desired image display mode.

<Effects of the Invention> As is clear from the above, according to the image display device for presentation of the present invention, the lecturer only needs to look at the image for the lecturer during the lecture, and can accurately explain the image for the audience. Can be performed, and a target audience image can be selected from a plurality of reduced audience images to smoothly explain the target audience image.

In addition, since the speaker displays the presence / absence of the lecture in the lecture image display means in the reduced image of the audience image, it is convenient for the lecturer to select the audience image. It is.

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of an image information display device for presentation of the present invention, FIG. 2 is a perspective view of an operation console, and FIG. 3 is a diagram showing an example of image display on a large projector and a monitor for a speaker. FIG. 4 is an explanatory diagram of coordinates on an image memory, FIG. 5 is an explanatory diagram of coordinates and a coordinate value calculation on a large projector or monitor, and FIG. 6 is a display example of a plurality of reduced images on a monitor for a speaker. FIG. 7 is a flowchart when the reduced image is obtained by the presentation image information display device, and FIG. 8 is an explanatory diagram when a reduced image is obtained by the image editing device. DESCRIPTION OF SYMBOLS 1 ... CPU, 2 ... Floppy disk drive, 3 ... 1st image memory, 4 ... Large projector, 7 ... 2nd image memory,
8: Mixer, 9: Monitor, 10: Keyboard, 15: Coordinate input device.

Continuing on the front page (72) Inventor Yasunori Yamane 22-22 Nagaikecho, Abeno-ku, Osaka City Inside Sharp Corporation (72) Inventor Sekitoshi 22-22 Nagaikecho, Abeno-ku, Osaka City Sharp Corporation (56 References JP-A-60-217463 (JP, A) JP-A-62-10727 (JP, A) JP-A-61-190667 (JP, A) JP-A-57-19789 (JP, A) 58-87660 (JP, A)

Claims (2)

(57) [Claims] 1. An image display data stored in a non-volatile external memory is read by a reading means, and image display data relating to an image for a listener is converted into image data for a listener by an image data generating means. A presentation image information display device that stores the image in the first image data memory and displays the image for the audience on the image display unit for the audience based on the stored image data for the audience; The image display data relating to the image used for the description of the audience image stored in the non-volatile external memory is converted into display image description image data, and a plurality of reduced images of the audience image are converted. The data for image display is converted into original reduced image data, and the image data for display image explanation obtained by the image data generating means and A second image data memory for storing the original reduced image data, corresponding to the audience image data stored in the first image data memory and the audience image data stored in the second image data memory Image synthesizing means for synthesizing the display image explanation image data to generate synthesized image data, and displaying a speaker image based on the synthesized image data obtained by the image synthesizing means, or A speaker image display means for displaying a plurality of reduced images of the audience image based on the original reduced image data stored in the image data memory, wherein the speaker image display means is displayed on the speaker image display means. When a desired image is selected from the reduced images, the corresponding image for the audience and the image for the speaker are displayed on the image display means for the audience and the image display means for the speaker. An image information display device for presentation characterized by displaying each of them. 2. The presentation image information display device according to claim 1, wherein said image data generating means displays the data for image display relating to a reduced image of the image for the audience in a lecture. Presentation, characterized in that the speaker image display means displays the presence or absence of a lecture in a reduced image of the plurality of listener images based on the identifier. Image information display device.