JPH06268950A - Display device and disk - Google Patents

Abstract

PURPOSE:To make a boundary of a video image projected from plural video projectors natural. CONSTITUTION:A disk reproduction devices 2A, 2B reproduce a video signal from a recording face of a disk on which a video signal corresponding to the boundary of a video image projected from video projectors 8A, 8B is overlappingly recorded and a video processing circuit 6 synthesizes two video signals R, F corresponding to the boundary outputted from the reproduction devices 2A, 2B to generate video signals RM, FM for the projectors 8A, 8B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video signal display device and a disc suitable for an amusement device that allows a user to experience virtual reality.

[0002]

2. Description of the Related Art Japanese Patent Application No. 4-27800 discloses a virtual reality system in which an image is displayed to a user, a sound is emitted, and a motion is sensed to allow the user to actually fly in space. An amusement device for experiencing a tee is disclosed.

[0003]

In the amusement apparatus as described above, it is desired to display an image on a large screen, and one method for that purpose is to project an image from a plurality of image projection apparatuses onto one screen. However, in this case, there is a problem that the image of the boundary portion of the projected image, for example, the seam of the horizontal line becomes unnatural.

The present invention has been made in view of such circumstances, and it is a first object of the present invention to provide a display device capable of naturalizing an image of a boundary portion of images projected from a plurality of image projection devices. The purpose of.

A second object of the present invention is to provide a disk which can make the image of the boundary portion of the images projected from a plurality of image projection devices natural.

[0006]

The display device of the present invention displays images from a plurality of image projection devices (eg, image projection devices 8A and 8B in FIG. 1) on one screen (eg, screen 24 in FIG. 3). A display device for displaying an image by projecting, a disc on which video signals corresponding to boundary portions of images projected from a plurality of video projection devices are recorded in duplicate on a plurality of recording surfaces, and a plurality of recording surfaces. A plurality of reproducing means (for example, the optical disk reproducing apparatuses 2A and 2B in FIG. 1) for reproducing the video signals recorded in the above, and a plurality of video signals corresponding to the boundary portions output from the plurality of reproducing means are combined. And a video processing unit (for example, the video signal processing circuit 6 in FIG. 1) that creates video signals for a plurality of video projection devices.

It is preferable that the video processing means creates a video signal by obtaining a weighted average of the plurality of video signals corresponding to the boundary portions output from the plurality of reproducing means.

The disc of the present invention is a disc on which video signals for a display device for projecting video from a plurality of video projection devices onto one screen to display the video are recorded.
It is characterized in that video signals corresponding to boundary portions of video images projected from a plurality of video projection devices are recorded on a plurality of recording surfaces in an overlapping manner.

[0009]

In the display device of the present invention, a plurality of reproducing means records the video signals corresponding to the boundary portions of the video images projected from the plurality of video projection devices on the plurality of recording surfaces in an overlapping manner. The video signals recorded on the plurality of recording surfaces are respectively reproduced, and the video processing means synthesizes the plurality of video signals corresponding to the boundary portions output from the plurality of reproduction means, and the video for the plurality of video projection devices. Create a signal. Therefore, the image of the boundary portion of the images projected from the plurality of image projection devices can be made natural.

From the plurality of recording surfaces of the disc of the present invention, the video signals corresponding to the boundary portions of the images projected from the plurality of video projectors are reproduced, and the plurality of reproduced video signals corresponding to the boundary portions are reproduced. By synthesizing and creating the video signals for the plurality of video projection devices, the video of the boundary portion of the video projected from the plurality of video projection devices can be made natural.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the configuration of an embodiment of the display device of the present invention. This embodiment is a display device that projects an image from the image projection devices 8A and 8B onto the screen 24 of FIG. 3 to display the image. The image projection devices 8A and 8B and the screen 24 are arranged in the amusement unit 100, as shown in FIG.

As shown in FIG. 2, the amusement unit 100 is provided with two chairs 22 on which the user 20 sits, and the image projection devices 8A and 8A are provided.
B is arranged in the middle of the two chairs 22. The image projection devices 8A and 8B are, for example, an LCD drive unit that generates an LCD (liquid crystal display) drive signal from an image signal, an LCD panel that receives the LCD drive signal and displays an image corresponding thereto, and the LCD panel. And a fisheye lens unit for projecting an image displayed on the screen in a wide angle range.

A spherical screen 24 on which an image is projected from the projection devices 8A and 8B extends from above the user 20 in a direction of about 90 ° forward and about 180 ° laterally.
The spherical screen 24 is attached to the chair 2 by the support member 26.
It is fixed at 0. Therefore, the spherical screen 24
Can be interlocked with the chair 22, that is, can move integrally with the chair 22.

The chair 22 is fixed to a platform 28. The platform 28 is moved by a drive 32. The drive device 32 includes projection devices 8A and 8A.
In response to the platform control signal supplied in association with the image projected from B, the platform 28 is moved forward and backward,
Move it left or right or up or down, tilt it further,
Make it vibrate.

Returning to FIG. 1, the recording surfaces of the optical disks reproduced by the optical disk reproducing apparatuses 2A and 2B are
Video signals corresponding to the boundary portions of the video images projected from the two video projection devices 8A and 8B are recorded in an overlapping manner.
The optical disk reproducing devices 2A and 2B are the synchronization control device 4
Playback is synchronized by.

Video signals YI and YI relating to the brightness reproduced and output by the optical disk reproducing devices 2A and 2B.
Regions R and F of I are regions corresponding to the boundary portion of the image and have the same signal. The video signal processing circuit 6 allows the signals of the portion other than the region R of the video signal YI to pass through as they are, and the region R of the video signal YI is corrected by using the portion of the region F of the video signal YII to obtain the signal R _M. , and outputs a corrected video signal YI _M including the signal R _M to the video projection device 8A. In addition, the video signal processing circuit 6 controls the video signal YII.
Through it the portion of the signal other than the region F of, for the region F of the video signal YII generates a signal F _M and modified using the partial region R of the video signal YI, this area F _M
The corrected video signal YII _M including the above is output to the video projection device 8B.

FIG. 4 shows an area covered by the video signals YI _M and YII _M output from the video signal processing circuit 6 on the screen 24. A region R _M of the video signal YI _M, and the area F _M of the video signal YII _M overlap.

FIG. 5 and FIG. 6 show a part of the configuration example of the video signal processing circuit 6 of FIG. 1 and the rest. This example is an example in which a modified video signal is generated by obtaining a weighted average of the boundary portions R and F of the video signals YI and YII output from the reproduction devices 2A and 2B. The high frequency component of the video signal YI output from the optical disc reproducing apparatus 2A is cut by the LPF (low pass filter) 42, and the A / D
It is converted into a digital signal by the converter 44 and supplied to the switch 46.

The switch 46 alternately connects the terminals S1 and S2 to supply the video signal YI for one frame, that is, for one screen to the memories M1 and M5 alternately. The output terminals of the memories M1 and M5 are respectively
It is connected to terminals S3 and S4 of switch 48.
When the switch 46 connects the terminal S1 to the connected state,
The switch 48 connects the terminal S4 to the switch 46,
Switch 48 when the terminal S2 is connected.
Brings the terminal S3 into the connected state. Therefore, when the video signal YI is written in the memory M1, the video signal YI of the previous frame is read from the memory M5, and when the video signal YI is read from the memory M1, it is written in the memory M5. The video signal YI of the next frame is written.

Addresses 0 to (Nk-1) of the memories M1 and M5 store portions other than the region R of the video signal YI, and addresses (Nk) to N store the region of the video signal YI. The R part is stored.

The portion other than the area R of the video signal YI stored in the addresses 0 to (Nk-1) of the memory M1 or M5 and read through the switch 48 is supplied to the terminal S5 of the switch 50. To be done. Memory M1 or M5
Of the switch 48.
The portion of the region R of the video signal YI read via
It is fed to multipliers 52 and 54, where it is multiplied by the coefficients a1 and a2, respectively.

As shown in FIG. 7A, the multiplier 52 goes from the left to the right of the area R of the video signal YI, that is, the address (N- of the memory M1 or M5).
k) to N, the value of the coefficient a1 multiplied by the video signal YI stored therein increases from 2 to 0 as the address increases.
Linearly down to. As shown in FIG. 7B, the multiplier 54 moves from the left to the right of the region R of the video signal YI, that is, the address (N−k) to N of the memory M1 or M5. The value of the coefficient a2 multiplied by the video signal YI stored therein increases linearly from 0 to 2 as the value increases.

The high frequency component of the video signal YII output from the optical disk reproducing device 2B is cut by an LPF (low pass filter) 62, converted into a digital signal by an A / D converter 64 and supplied to a switch 66.

The switch 66 alternately connects the terminals S7 and S8 to supply the video signal YII for one frame, that is, one screen to the memories M2 and M6. The output terminals of the memories M2 and M6 are connected to the terminals S9 and S10 of the switch 68, respectively. When the switch 66 connects the terminal S7, the switch 68 connects the terminal S10, and when the switch 66 connects the terminal S8, the switch 68 connects the terminal S9. Therefore, when the video signal YII is written to the memory M2, the video signal YII of the previous frame is read from the memory M6, and when the video signal YII is read from the memory M2, the memory M6 is read. The video signal YII of the next frame is written.

Addresses 0 through k of memories M2 and M6
The area F of the video signal YII is stored in each area, and the area F of the video signal YII is stored in areas other than the addresses 0 to k.
The part other than is stored.

Addresses 0 to k of the memory M2 or M6
The part of the area F of the video signal YII stored in the memory and read out via the switch 48 is supplied to the multipliers 72 and 74, where they are multiplied by the coefficients b1 and b2, respectively. Addresses (k + 1) to N of the memory M2 or M6
Of the video signal YII, which is stored in the switch 70 and is read out through the switch 48, except for the area F.
12 are supplied.

As shown in FIG. 7C, the multiplier 72 increases from the left to the right of the area F of the video signal YII, that is, the address of the addresses 0 to k of the memory M2 or M6 increases. As a result, the value of the coefficient b1 by which the video signal YII stored therein is multiplied is linearly increased from 0 to 2. As shown in FIG. 7 (d), the multiplier 74 increases from left to right of the region R of the video signal YI, that is, as the address 0 to k of the memory M2 or M6 increases. The value of the coefficient b2 to be multiplied by the video signal YII stored in is reduced linearly from 2 to 0.

The adder 56 adds the output of the multiplier 52 and the output of the multiplier 72. The multiplier 58 multiplies the output of the adder 56 by (1/2) to generate the signal R _M. The output of the multiplier 58 is supplied to the terminal S6 of the switch 50. The switch 50 keeps the terminal S5 connected during a period corresponding to a portion other than the area R of the video signal YI,
In a period corresponding to the region R of I, the terminal S6 is connected,
The modified video signal YI _M including the signal R _M is output.

The adder 76 adds the output of the multiplier 54 and the output of the multiplier 74. The multiplier 78 multiplies the output of the adder 76 by (1/2) to generate the signal F _M. The output of the multiplier 78 is supplied to the terminal S11 of the switch 70. The switch 70 keeps the terminal S11 connected during the period corresponding to the region F of the video signal YII, and keeps the terminal S12 connected during the period corresponding to the regions other than the region F of the video signal YII and the corrected video including the signal F _M. The signal YII _M is output.

The modified video signal YI _M outputted from the switch 50 is supplied to the switch 72. Switch 72
Causes terminals S13 and S14 to be alternately connected and 1
Frames i.e. alternately supplied a modified video signal YI _M for one screen in the memory M3 and the memory M7. Memory M
The output terminals of 3 and M7 are connected to the terminals S15 and S16 of the switch 74, respectively. Switch 7
When the switch 2 has the terminal S13 in the connected state, the switch 74 puts the terminal S16 in the connected state, and when the switch 72 has the terminal S14 in the connected state, the switch 74 puts the terminal S15 in the connected state. Thus, when fixed in the memory M3 video signal YI _M is written, the memory M
7 reading correction video signal YI _M of the previous frame is performed from, when the read correction video signal YI _M from the memory M3 is performed, the writing of the modified video signal YI _M of the next frame in the memory M7 Is done.

[0031] The or address 0 of the memory M3 and M7 (N-k-1) , the stored portions other than the region R of the modified video signal YI _M, the address (N-k) to N, modified video signal region R portion of the YI _M is stored.

The modified video signal YI _M output from the switch 74 is converted into a digital signal by the D / A converter 76, the high frequency component by LPA78 is cut, is supplied to the video projector 8A.

The corrected video signal YII _M output from the switch 70 is supplied to the switch 82. Switch 82
Causes terminals S17 and S18 to be alternately connected and 1
The corrected video signal YII _M for the frame, that is, for one screen is alternately supplied to the memories M4 and M8. The output terminals of the memories M4 and M8 are respectively connected to the switch 84.
Are connected to terminals S19 and S20. When the switch 82 connects the terminal S17, the switch 84 connects the terminal S20, and when the switch 82 connects the terminal S18, the switch 84 connects the terminal S19. Therefore, when the modified video signal YII _M is written in the memory M4, the modified video signal YII _M of the previous frame is read from the memory M8, and the modified video signal YII _M is read from the memory M4.
_{When M} is being read, the modified video signal YII _M of the next frame is written in the memory M8.

Addresses 0 through k of memories M4 and M8
The area F of the corrected video signal YII _M is stored in the memory area, and the corrected video signal YI is stored in the addresses (k + 1) to N.
The portion of I _M other than region F is stored.

The corrected video signal YII _M output from the switch 84 is converted into a digital signal by the D / A converter 86, the high frequency components are cut by the LPA 88, and the corrected video signal YII _M is supplied to the video projection device 8A.

FIG. 8 shows an operation for the video signal YI in the configuration example of the video signal processing circuit 6 shown in FIGS. 5 and 6. When first frame of the video signal YI is written in the memory M1, the 0th frame of the video signal Y1 is read out from the memory M5, the O-th frame of the modified video signal YI _M in the memory M7 is written is, first from the memory M3 of the modified video signal YI _M (-1) th frame is read out (is played).

Next, the first video signal YI from the memory M1
Th when the frame is read, the second frame of the video signal Y1 is written in the memory M5, the O-th frame of the modified video signal YI _M from the memory M7 is read (reproduced), the memory M3 Modified video signal Y
The first frame of I _M is written.

Next, when the third frame of the video signal YI is written in the memory M1, the second frame of the video signal Y1 from the memory M5 is read out, the modified video signal YI _M in the memory M7 the second frame is written, the first frame of the modified video signal YI _M from the memory M3 is (are reproduced) is read.

Next, a third video signal YI from the memory M1
Th when the frame is read out, the fourth frame of the video signal Y1 is written in the memory M5, the second frame of the modified video signal YI _M from the memory M7 is read (reproduced), the memory M3 Modified video signal Y
The third frame of I _M is written.

In this way, regarding the video signal YI,
Processing can be performed continuously without interruption. Video signal Y
The same applies to the processing regarding II.

In the example of FIG. 1, only the processing of the video signal Y relating to the luminance is shown, but the same applies to the color difference signals (RY) and (BY).

In the examples of FIGS. 5 and 6, the coefficient a
Although 1, a2, b1 and b2 are linearly changed according to the position of the video signal, the present invention is not limited to this and may be changed exponentially, for example.

In the above embodiment, the video signal corresponding to the boundary of the screen, that is, the display screen is recorded on separate optical disks, but it may be recorded on different surfaces such as the front surface and the back surface of the same optical disk. .

In the above embodiment, the video signal is recorded on the optical disk, but the present invention is not limited to this, and the video signal may be recorded on a disk made of another material such as a magneto-optical disk. it can.

[0045]

According to the display device of the present invention, a disc is used in which video signals corresponding to the boundary portions of the video images projected from a plurality of video projection devices are overlapped and recorded on a plurality of recording surfaces. Reproducing means reproduces the video signals recorded on the plurality of recording surfaces, respectively, and the video processing means synthesizes the plurality of video signals corresponding to the boundary portions output from the plurality of reproducing means into a plurality of video signals. Since the video signal for the video projection device is created, the video of the boundary portion of the video projected from the plurality of video projection devices can be made natural.

According to the disk of the present invention, the video signals corresponding to the boundary portions of the video images projected from the plurality of video projection devices are recorded in duplicate on the plurality of recording surfaces. The video signal corresponding to the boundary part of the image projected from the image projection device is reproduced, and the reproduced video signals corresponding to the boundary part are combined to create a video signal for the plurality of video projection devices. By doing so, the image of the boundary portion of the images projected from the plurality of image projection devices can be made natural.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a display device of the present invention.

FIG. 2 is a front view showing a configuration example of an amusement device in which the embodiment of the display device of FIG. 1 is used.

FIG. 3 is a side view showing a configuration example of an amusement device in which the embodiment of the display device of FIG. 1 is used.

4 is an image YI projected on the screen 24 of FIG. 3 from the image projection devices 8A and 8B shown in FIGS.
Is a diagram showing the positional relationship between _M and YII _M.

5 is a block diagram showing a part of a configuration example of the video signal processing circuit 6 of FIG. 1. FIG.

6 is a block diagram showing the remaining part of a configuration example of the video signal processing circuit 6 of FIG. 1. FIG.

7 is a graph showing the values of the coefficients a1, a2, b2 and b2 multiplied by the multipliers 52, 54, 72 and 74 of FIG. 5 in relation to the position of the video signal in the horizontal direction, that is, the address.

FIG. 8 is a video signal processing circuit 6 shown in FIGS. 5 and 6.
3 is a chart showing the operation of one configuration example.

[Explanation of symbols]

2A, 2B Optical disc reproducing device 4 Synchronization control circuit 6 Video signal processing circuit 8A, 8B Video projection device 20 User 24 Screen 46, 48, 50, 66, 68, 70, 72, 74, 8
2, 84 switch 52, 54, 58, 72, 74, 78 multiplier 56, 76 adder M1, M2, M3, M4, M5, M6, M7, M8 memory

Claims (3)

[Claims] 1. A display device for displaying an image by projecting an image from a plurality of image projection devices onto one screen, wherein a plurality of image signals corresponding to a boundary portion of images projected from the plurality of image projection devices are provided. A disc that is redundantly recorded on a recording surface, a plurality of reproducing means that respectively reproduce the video signals recorded on the plurality of recording surfaces, and a plurality of reproducing portions corresponding to the boundary portions output from the plurality of reproducing means. And a video processing means for synthesizing the video signals to create video signals for the plurality of video projection devices. 2. The video processing means creates a video signal by obtaining a weighted average of a plurality of video signals corresponding to the boundary portions output from the plurality of reproducing means. Display device. 3. A disc in which video signals for a display device for projecting video from a plurality of video projection devices onto one screen to display the video are recorded, the video being projected from the plurality of video projection devices. A disc having a plurality of recording surfaces on which video signals corresponding to the boundary portions of are recorded in an overlapping manner.