阅读说明：本技术 影像显示系统、影像变换装置以及影像显示方法 (Image display system, image conversion device and image display method ) 是由 冈崎芳纪 田中义人 山田高士 松木大三郎 河口宜史 于 2020-02-27 设计创作，主要内容包括：影像显示系统具备：多个显示装置,具有相互不同的显示延迟时间；和影像变换装置,将被输入的整合影像信号分割为多个影像信号,分别输出给多个显示装置。多个影像信号之中的至少一个影像信号基于显示延迟时间,在延迟的状态下被输出,以使得分别显示于多个显示装置的多个影像的显示定时之差实质为0。(The image display system includes: a plurality of display devices having mutually different display delay times; and a video conversion device for dividing the input integrated video signal into a plurality of video signals and outputting the video signals to the plurality of display devices. At least one of the plurality of video signals is output in a delayed state based on the display delay time such that a difference between display timings of the plurality of images respectively displayed on the plurality of display devices is substantially 0.)

1. An image display system includes:

a plurality of display devices having mutually different display delay times;

an image conversion device for dividing the input integrated image signal into a plurality of image signals and outputting the image signals to the plurality of display devices,

at least one of the plurality of video signals is output in a delayed state based on the display delay time so that a difference between display timings of the plurality of images respectively displayed on the plurality of display devices is substantially 0.

2. The image display system according to claim 1,

the display delay time is a predetermined value corresponding to each of the plurality of display devices.

3. The image display system according to claim 1,

the image display system further includes: an imaging device for capturing the plurality of images respectively displayed on the plurality of display devices,

the image conversion device calculates the display delay time based on the plurality of images captured.

4. The image display system according to any one of claims 1 to 3,

the plurality of display devices include 1 st and 2 nd display devices,

the plurality of video signals include: a 1 st video signal for displaying a 1 st video on the 1 st display device and a 2 nd video signal for displaying a 2 nd video on the 2 nd display device,

the display delay time of the 1 st display device is longer than that of the 2 nd display device,

the 2 nd video signal is delayed from the 1 st video signal, so that the difference between the display timings of the 1 st and 2 nd videos is substantially 0.

5. The image display system according to claim 4,

the video conversion device delays the timing of outputting the 2 nd video signal.

6. The image display system according to claim 4,

the image display system further includes: an integrated video content generating unit for generating the integrated video signal by integrating the 1 st video signal and the 2 nd video signal and outputting the generated integrated video signal to the video converting device,

the integrated video content generating unit performs integration by delaying the 2 nd video signal with respect to the 1 st video signal.

7. The image display system according to any one of claims 1 to 6,

the plurality of display devices include an output device capable of being controlled by a 3 rd picture signal,

the integrated video signal includes the 3 rd video signal for controlling the output device.

8. The image display system according to any one of claims 1 to 7,

the integrated video signal is generated based on frame rate information of the plurality of display devices.

9. The image display system according to any one of claims 1 to 8,

the integrated video signal is generated based on resolution information of the plurality of display devices.

10. The image display system according to any one of claims 1 to 9,

the integrated image signal is generated as: at least one video signal among the plurality of video signals corresponding to a group of at least one display device of the plurality of display devices is selectively switched and displayed in sequence every at least one frame.

11. An image conversion device is provided with:

an image conversion processing unit which inputs an integrated image signal and divides the integrated image signal into a plurality of image signals corresponding to a plurality of display devices having different display delay times; and

and a delay correction calculation unit that inputs information on the display delay time and adjusts output timings of the plurality of video signals based on the display delay time so that a difference between display timings in the plurality of display devices is substantially 0.

12. The image conversion device according to claim 11,

the information on the display delay time is a predetermined value corresponding to each of the plurality of display devices.

13. The image conversion device according to claim 11,

the information on the display delay time is a plurality of images which are displayed on the plurality of display devices and are photographed by a photographing device,

the delay correction calculation unit calculates the display delay time based on the plurality of captured images.

14. The image conversion device according to any one of claims 11 to 13,

the plurality of display devices include 1 st and 2 nd display devices,

the plurality of video signals include a 1 st video signal for causing the 1 st display device to display a 1 st video and a 2 nd video signal for causing the 2 nd display device to display a 2 nd video,

the display delay time of the 1 st display device is longer than that of the 2 nd display device,

the delay correction arithmetic unit adjusts the output timing so that the 2 nd video signal is delayed with respect to the 1 st video signal.

15. The image conversion device according to any one of claims 11 to 14,

the integrated video signal is generated based on frame rate information of the plurality of display devices.

16. The image conversion device according to any one of claims 11 to 14,

the integrated video signal is generated based on resolution information of the plurality of display devices.

17. The image conversion device according to any one of claims 11 to 14,

the integrated image signal is generated as: at least one video signal among the plurality of video signals corresponding to a group of at least one display device of the plurality of display devices is selectively switched and displayed in sequence for each frame.

18. An image display method for displaying a plurality of images on a plurality of display devices having different display delay times, respectively, the image display method comprising:

an information input step of inputting information relating to the display delay time; and

an image output step of outputting a plurality of image signals corresponding to the plurality of images, respectively, based on the display delay time so that a difference between display timings in the plurality of images is substantially 0.

19. The image display method according to claim 18,

in the image output step, at least one image signal among the plurality of image signals is output with a delay.

20. The image display method according to claim 18,

the image display method further includes: an image integration step of integrating the plurality of image signals,

in the image integration step, at least one of the plurality of image signals is integrated by being delayed.

Technical Field

The present disclosure relates to an image display system including a plurality of image display devices having different delay times in image display, an image conversion device provided in the image display system, and an image display method.

Background

Patent document 1 discloses an interactive indoor performance and game system configured to provide an appealing and immersive multimedia performance or presentation indoors. The system of patent document 1 includes a plurality of controllers for selectively operating a display device, a video projector, an audio system (speaker, etc.) and other performance components (light source, fan, mechanical device, etc.).

Prior art documents

Patent document

Patent document 1: specification of U.S. Pat. No. 10004984

Disclosure of Invention

The system of patent document 1 includes a display and a projector. However, these image displays have different delay times. Therefore, in the system as described above, a difference occurs in display timing between two display images displayed by the display and the projector, giving a sense of incongruity, and the sense of input to the performance or the game may be impaired.

The system of patent document 1 converts video signals output to the respective video display devices based on the positions of the display and the projector. Therefore, in order to process images for a plurality of display devices in real time, a high-performance computer or the like is used, which increases the cost.

The present disclosure provides a low-cost image display system, an image conversion device, and an image display method, which substantially make a time difference between display images based on respective display devices to be 0, in an image display system including a plurality of display devices having different display delay times.

The image display system includes: a plurality of display devices having mutually different display delay times; and a video conversion device for dividing the input integrated video signal into a plurality of video signals and outputting the video signals to the plurality of display devices. At least one of the plurality of video signals is output in a delayed state based on the display delay time so that a difference between display timings of the plurality of images respectively displayed on the plurality of display devices is substantially 0.

The image conversion device is provided with: an image conversion processing unit which inputs the integrated image signal and divides the integrated image signal into a plurality of image signals corresponding to a plurality of display devices having different display delay times; and a delay correction calculation unit which inputs information on the display delay time and adjusts output timings of the plurality of video signals based on the display delay time so that a difference between display timings in the plurality of display devices is substantially 0.

An image display method for displaying a plurality of images on a plurality of display devices having different display delay times, respectively, includes: an information input step of inputting information relating to the display delay time; and an image output step of outputting a plurality of image signals respectively corresponding to the plurality of images so that a difference between display timings in the plurality of images is substantially 0, based on the display delay time.

Therefore, according to the video display system, the video conversion device, and the video display method of the present disclosure, the time difference between the displayed videos by the plurality of video display devices having different display delay times can be substantially 0.

Drawings

Fig. 1 is a block diagram showing an example of a connection relationship of the video display system 1 according to embodiment 1.

Fig. 2 is a block diagram showing a configuration example of the video display system 1 of fig. 1.

Fig. 3 is a schematic diagram illustrating a configuration example of the integrated video content 100 in the video display system 1 of fig. 1.

Fig. 4 is a block diagram showing a detailed configuration example of the video conversion device 20 of the video display system 1 of fig. 1.

Fig. 5 is a block diagram showing a configuration example of the video display system 1A according to embodiment 2.

Fig. 6 is a block diagram showing a detailed configuration example of the video conversion device 20A of the video display system 1A of fig. 5.

Fig. 7 is a block diagram showing a configuration example of the video display system 1B according to embodiment 3.

Fig. 8 is a block diagram showing a detailed configuration example of the video conversion device 20B of the video display system 1B of fig. 7.

Fig. 9 is a block diagram showing a configuration example of the video display system 1C according to embodiment 4.

Fig. 10 is a block diagram showing a configuration example of the video display system 1D according to embodiment 5.

Fig. 11 is a schematic diagram showing a configuration example of the integrated video content 100 in the video display system 1D of fig. 10.

Fig. 12 is a block diagram showing a detailed configuration example of the video conversion device 20D of the video display system 1D of fig. 10.

Fig. 13 is a block diagram showing a configuration example of the video display system 1E according to embodiment 6.

Fig. 14 is a schematic diagram showing a configuration example of the integrated video content 100 in the video display system 1E of fig. 13.

Fig. 15 is a block diagram showing a detailed configuration example of the video conversion device 20E in the video display system 1E of fig. 13.

Fig. 16A is a schematic diagram illustrating a relationship between the luminance and the temperature of the pixels in the integrated image content 100 of fig. 14.

Fig. 16B is a schematic diagram illustrating a relationship between luminance and wind speed of pixels in the integrated image content 100 of fig. 14.

Fig. 17A is a diagram illustrating an example of local image content C3 for device control among the integrated image content 100 of fig. 14.

Fig. 17B is a diagram illustrating another example of the local image content C3 for device control among the integrated image content 100 of fig. 14.

Fig. 18A is a schematic diagram showing a configuration example of the integrated video content 100 according to modification 1.

Fig. 18B is a schematic diagram showing a configuration example of the integrated video content 100 according to modification 2.

Fig. 18C is a schematic diagram showing a configuration example of the integrated video content 100 according to modification 3.

Fig. 18D is a schematic diagram showing a configuration example of the integrated video content 100 according to modification 4.

Fig. 18E is a schematic diagram showing a configuration example of the integrated video content 100 according to modification 5.

Fig. 18F is a schematic diagram showing a configuration example of the integrated video content 100 according to modification 6.

Fig. 18G is a schematic diagram showing a configuration example of the integrated video content 100 according to modification 7.

Fig. 18H is a schematic diagram showing a configuration example of the integrated video content 100 according to modification 8.

Fig. 18I is a schematic diagram showing a configuration example of the integrated video content 100 according to modification 9.

Fig. 18J is a schematic diagram showing a configuration example of the integrated video content 100 according to the modification 10.

Fig. 18K is a schematic diagram showing a configuration example of the integrated video content 100 according to modification 11.

Detailed Description

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings as appropriate. However, unnecessary detailed descriptions such as detailed descriptions of known matters and repetitive descriptions of substantially the same configuration may be omitted. This is to avoid unnecessary redundancy in the following description, as will be readily understood by those skilled in the art.

In addition, the inventors provide the drawings and the following description in order to facilitate a sufficient understanding of the present disclosure based on those skilled in the art, and do not intend to limit the subject matter described in the claims by these.

(embodiment mode 1)

Embodiment 1 will be described below with reference to fig. 1 to 4.

Fig. 1 is a block diagram showing an example of a connection relationship of the video display system 1 of fig. 1. In fig. 1, the video display system 1 includes: the image display apparatus includes an image output device 10, an image conversion device 20, a 1 st display device 31 as a projector, and a 2 nd display device 32 as a display. The video output device 10 is connected to the video conversion device 20 so as to be able to transmit a video signal. The video converter 20, the 1 st display device 31, and the 2 nd display device 32 are connected to be able to transmit and receive various signals to and from each other. The video output device 10 can obtain video data of a video signal to be transmitted to the video converter 20 from the media server 60 via the network.

Fig. 2 is a block diagram showing a configuration example of the video display system 1 of fig. 1. In fig. 2, the video output apparatus 10 outputs an integrated video signal including integrated video content 100 to the video conversion apparatus 20. The video conversion device 20 converts the integrated video content 100 included in the input integrated video signal into the 1 st and 2 nd video signals, outputs the 1 st video signal to the 1 st display device, and outputs the 2 nd video signal to the 2 nd display device. The 1 st and 2 nd display devices display images based on the 1 st and 2 nd video signals that are input, respectively.

The 1 st display device 31 transmits and receives the delay detection signal to and from the 2 nd display device 32, thereby detecting a 1 st delay amount indicating how much the timing of the video display is delayed from the 2 nd display device 32, and outputs a signal indicating the 1 st delay amount to the video conversion device 20. Similarly, the 2 nd display device 32 outputs a signal indicating the 2 nd delay amount to the video converter 20. The video conversion device 20 adjusts the output timing of the 1 st and 2 nd video signals based on the 1 st and 2 nd delay amounts that are input. Here, the signals indicating the 1 st and 2 nd delay amounts are an example of information on the display delay time.

Fig. 3 is a schematic diagram illustrating a configuration example of the integrated video content 100 in the video display system 1 of fig. 1. In fig. 3, the integrated video content 100 includes: an area to which the partial video content C1 to be displayed on the 1 st display device is assigned, an area to which the partial video content C2 to be displayed on the 2 nd display device is assigned, and an unused area to which the partial video content C0 not to be displayed on any display device is assigned. The pixels of the local image content C0 may be all black.

Fig. 4 is a block diagram showing a detailed configuration example of the video conversion device 20 of the video display system 1 of fig. 1. In fig. 4, the video conversion device 20 includes: a video input unit 210, a video input buffer 220, an information input unit 230, a delay correction calculation unit 240, a video conversion processing unit 250, 1 st and 2 nd video output buffers 261 and 262, and 1 st and 2 nd video output units 271 and 272.

In fig. 4, the video input buffer 220 inputs the integrated video signal through the video input unit 210 and temporarily stores the integrated video signal. The delay correction arithmetic unit 240 outputs the 1 st correction value signal Sfl to the 1 st video output buffer and the 2 nd correction value signal Sf2 to the 2 nd video output buffer based on the 1 st and 2 nd delay amounts input via the information input unit 230. The 1 st correction value signal Sf1 is a signal indicating the 1 st correction value that is a delay amount by which the timing of outputting the 1 st video signal to the 1 st display device 31 is delayed. Similarly, the 2 nd correction value signal Sf2 is a signal indicating the 2 nd correction value which is a delay amount by which the timing of outputting the 2 nd video signal to the 2 nd display device 32 is delayed.

The video conversion processing unit 250 cuts out an area allocated as the local video content C1 from the integrated video content 100 included in the input integrated video signal, and outputs the 1 st video signal Sc1 to the 1 st video output buffer 261. Similarly, the video conversion processing unit 250 outputs the 2 nd video signal Sc2 indicating the local video content C2 to the 2 nd video output buffer 262. The 1 st video output buffer 261 delays the 1 st video signal Sc1 to be input by the correction value indicated by the 1 st correction value signal Sf1, and outputs the delayed video signal to the 1 st display device 31 via the 1 st video output unit 271. Similarly, the 2 nd video output buffer 262 delays the input 2 nd video signal Sc2 by the correction value indicated by the 2 nd correction value signal Sf2, and outputs the delayed signal to the 2 nd display device 32 via the 2 nd video output unit 272.

The detailed operation of the video display system 1 configured as described above will be described below.

The video output device 10 outputs an integrated video signal including the integrated video content 100 to the video conversion device 20. The image conversion processing unit 250 of the image conversion device receives the integrated image signal via the image input unit 210 and the image input buffer 220. The video conversion processing unit 250 cuts out regions corresponding to the 1 st and 2 nd display devices from the integrated video content 100 included in the input integrated video signal, and outputs the 1 st and 2 nd video signals Sc1 and Sc2 to the 1 st and 2 nd video output buffers 261 and 262, respectively.

The delay correction computing unit 240 inputs 1 st and 2 nd delay amounts from 1 st and 2 nd display devices through the information input unit 230. The delay correction arithmetic unit 240 generates 1 st and 2 nd correction value signals Sf1 and Sf2 indicating 1 st and 2 nd correction values for delaying the outputs of the 1 st and 2 nd video signals Sc1 and Sc2 in the 1 st and 2 nd video output buffers, respectively, based on the 1 st and 2 nd delay amounts input. The calculation of the correction value will be described in detail below.

In the delay correction calculation unit 240, when the 1 st delay amount input is larger than the 2 nd delay amount, the display timing of the video image by the 1 st display device is delayed by the difference between the 1 st and 2 nd delay amounts from the display timing of the video image by the 2 nd display device. Therefore, the 2 nd correction value Sf2 is set to a value larger than the 1 st correction value Sf1 by the difference between the 1 st and 2 nd delay amounts. Thereby, the display timing of the video on the basis of the 2 nd display device is delayed by the difference between the delay amounts. Conversely, when the 2 nd delay amount is larger than the 1 st delay amount, the 1 st correction value Sf1 is set to be larger than the 2 nd correction value Sf2 by the difference between the 1 st and 2 nd delay amounts. Thus, the video signal is input to the one display device having the display timing of the display video earlier than the display timing of the other display device at a timing later than the other display device. Therefore, each image having a difference in display timing of substantially 0 is output from the 1 st and 2 nd display devices.

As described above, the video display system of fig. 1 transmits and receives the delay detection signal between the 1 st and 2 nd display devices 31 and 32, thereby detecting the delay amount of each display device. Then, the video converter 20 delays the video signal output to the display device having a smaller delay amount than the other display devices by the difference of the delay amounts based on the detected delay amount, and outputs the delayed video signal. This makes it possible to set the time difference between the display images by the respective display devices to substantially 0. Further, since the video conversion device 20 processes only the integrated video content 100 and does not process each video displayed on a plurality of display devices at the same time, it is possible to realize the video conversion device at low cost without using a high-performance computer as in the related art.

Instead of acquiring the integrated video content 100 from the network, the video output apparatus 10 may include a memory for storing the integrated video content 100, and may read the integrated video content 100 from the memory.

The 1 st and 2 nd delay amounts are detected by transmitting and receiving delay detection signals between the 1 st and 2 nd display devices. However, the delay amount of the display device may be a predetermined value measured in advance for each display device. The predetermined 1 st and 2 nd delay amounts may be stored in the storage unit of the 1 st and 2 nd display devices and the like and output to the video conversion device 20, or may be stored in the storage unit of the delay correction arithmetic unit 240 of the video conversion device 20 and the like. The predetermined 1 st and 2 nd delay amounts may be stored in the form of a database in the delay correction arithmetic unit 240. In this case, the video conversion apparatus 20 may acquire identification information such as a device type name from the 1 st and 2 nd display devices 31 and 32, and search the 1 st and 2 nd delay amounts from the database based on the identification information.

(embodiment mode 2)

Fig. 5 is a block diagram showing a configuration example of the video display system 1A according to embodiment 2. In fig. 5, the video display system 1A is different from the video display system 1 of fig. 1 in the following points.

(1) The imaging device 40 is also provided.

(2) The video conversion device 20A is provided in place of the video conversion device 20.

In fig. 5, the imaging device 40 captures the 1 st video image on the 1 st display device 31A and the 2 nd video image on the 2 nd display device 32A, and transmits a captured video signal including the captured video image to the video converter 20A. The video conversion device 20A calculates the 1 st and 2 nd delay amounts based on the captured video included in the captured video signal. The video conversion device 20A adjusts the output timing of the 1 st and 2 nd video signals based on the 1 st and 2 nd delay amounts, as in embodiment 1. Here, a photographed image signal including a photographed image is an example of information on a display delay time.

Fig. 6 is a block diagram showing a detailed configuration example of the video conversion device 20A of the video display system 1A of fig. 5. In fig. 6, the video conversion device 20A differs from the video conversion device 20 in fig. 4 in that it includes an information input unit 230A and a delay correction calculation unit 240A.

In fig. 6, the delay correction arithmetic unit 240A inputs a captured image signal from the imaging device 40 via the information input unit 230A. The delay correction arithmetic section 240A calculates how much difference occurs in the display timing of the 1 st and 2 nd images based on the photographed image included in the inputted photographed image signal. Further, the delay correction arithmetic unit 240A delays and outputs the video signal output to the display device having the display timing earlier than the other display devices by the difference of the display timing, as in embodiment 1. Thus, the difference in display timing between the respective display images by the 1 st and 2 nd display devices is substantially 0.

(embodiment mode 3)

Fig. 7 is a block diagram showing a configuration example of the video display system 1B according to embodiment 3. In fig. 7, the video display system 1B is different from the video display system 1 of fig. 1 in the following points.

(1) Further, an integrated video content generating unit 50B is provided.

(2) The 1 st and 2 nd display devices 31B and 32B output signals indicating the 1 st and 2 nd delay amounts to the integrated video content generating unit 50B instead of the video converting device 20.

In fig. 7, the 1 st and 2 nd display devices output the 1 st and 2 nd delay amounts to the integrated video content generating unit 50B. The integrated video content generating unit 50B generates the integrated video content 100 including the local video contents C1 and C2 acquired via a network (not shown) based on the 1 st and 2 nd delay amounts. Here, the integrated video content generating unit 50B delays the local video content C1 by a time equal to the difference between the 1 st and 2 nd delay amounts when the 2 nd delay amount is larger than the 1 st delay amount that is input. Conversely, when the 1 st delay amount is larger than the 2 nd delay amount to be input, the local video content C2 is delayed for the same time. The integrated video content generating unit 50B integrates the two partial video contents C1 and C2 thus corrected to generate the integrated video content 100, and outputs the integrated video signal to the video output device 10.

The video output device 10 transmits the integrated video signal to the video conversion device 20B. The video converter 20B cuts out regions corresponding to the local video contents C1 and C2 from the integrated video content 100 included in the integrated video signal, and transmits the 1 st and 2 nd video signals including the local video contents C1 and C2 to the 1 st and 2 nd display devices, respectively. The 1 st and 2 nd display devices 31B and 32B display video images based on the transmitted 1 st and 2 nd video signals. The 1 st and 2 nd display devices 31B and 32B output signals indicating the 1 st and 2 nd delay amounts to the integrated video content generating unit 50B, respectively.

Fig. 8 is a block diagram showing a detailed configuration example of the video conversion device 20B in fig. 7. In fig. 8, the video conversion device 20B does not include the information input unit 230 and the delay correction calculation unit 240, and does not perform delay correction in the 1 st and 2 nd video output buffers 261B and 262B, compared to the video conversion device 20.

In this way, the video display system 1B of fig. 7 corrects the integrated video content 100 generated by the integrated video content generating unit 50B based on the difference between the 1 st and 2 nd delay amounts between the 1 st and 2 nd display devices so that the difference between the display timings in the display video by the 1 st and 2 nd display devices is substantially 0. In the present embodiment, the integrated video content generating unit 50B acquires the 1 st and 2 nd delay amounts from the 1 st and 2 nd display devices 31B and 32B, but the 1 st and 2 nd delay amounts may be values stored in advance in the integrated video content generating unit 50B.

(embodiment mode 4)

Fig. 9 is a block diagram showing a configuration example of the video display system 1C according to embodiment 4. In fig. 9, the video display system 1C is different from the video display system 1B of fig. 7 in that the 1 st display device 31C outputs the 1 st frame rate information to the integrated video content generating unit 50C, and the 2 nd display device 32C outputs the 2 nd frame rate information to the integrated video content generating unit 50C.

In fig. 9, the 1 st display device 31C transmits the display frame rate of the 1 st display device 31C, for example, 30 frames per second, as the 1 st frame rate information to the integrated video content generating unit 50C. Similarly, the 2 nd display device 32C transmits the display frame rate of the 2 nd display device 32C, for example, 60 frames per second, as the 2 nd frame rate information to the integrated video content generating unit 50C. The integrated video content generating unit 50C generates the integrated video content 100 so that the display frame rates are the same, based on the 1 st and 2 nd frame rate information from the 1 st and 2 nd display devices 31C and 32C.

For example, consider a case where the display frame rate of the 1 st display device 31C is 30 frames per second and the display frame rate of the 2 nd display device 32C is 60 frames per second. In this case, the integrated video content generating unit 50C converts the local video content C2 into the local video content C2 in which the even-numbered frame displays the same video as the immediately preceding frame. Accordingly, the video displayed on the 2 nd display device 32C is updated to a new image every 2 frames, and therefore, the frame rate thereof is substantially 30 frames per second. Therefore, the frame rates of the display videos are matched between the 1 st and 2 nd display devices, and the sense of incongruity between the display videos is reduced. In the present embodiment, the integrated video content generating unit 50C acquires the 1 st and 2 nd frame rate information from the 1 st and 2 nd display devices 31C and 32C, but the 1 st and 2 nd frame rate information may be a value stored in advance in the integrated video content generating unit 50C.

(embodiment 5)

Fig. 10 is a block diagram showing a configuration example of the video display system 1D according to embodiment 5. In fig. 10, the video display system 1D is different from the video display system 1B of fig. 7 in the following points.

(1) The 1 st and 2 nd display devices 31D and 32D output the 1 st and 2 nd resolution information to the integrated video content generating unit 50D, respectively.

(2) The integrated video content generating unit 50D further transmits the video format information to the video converting device 20D via the video output device 10D.

In fig. 10, the 1 st display device 31D transmits 1 st resolution information indicating a resolution of a video displayed by the 1 st display device 31D to the integrated video content generating unit 50D. Likewise, the 2 nd display device 32D transmits the 2 nd resolution information. The integrated video content generating unit 50D converts the local video contents C1, C2 into the integrated video content 100 based on the 1 st and 2 nd resolution information so that the ratio of the resolutions of the 1 st and 2 nd local video contents C1, C2 is equal to the ratio of the display resolutions of the 1 st and 2 nd display devices 31D, 32D. The integrated video content generating unit 50D further transmits video format information indicating which region in the integrated video content 100 corresponds to which local video content, to the video converting device 20D via the video output device 10D. The video converter 20D cuts out the local video contents C1 and C2 from the integrated video content 100 based on the video format information, and transmits the 1 st and 2 nd video signals including the local video contents C1 and C2 to the 1 st and 2 nd display devices 31D and 32D, respectively.

Fig. 11 is a schematic diagram showing a configuration example of the integrated video content 100 in the video display system 1D of fig. 10. The integrated video content 100 in fig. 11 shows an example of a case where the resolution of the 1 st display device 31D is 4K and the resolution of the 2 nd display device 32D is 2K. In this case, the 1 st display device 31D transmits 1 st resolution information indicating a resolution of 4K to the integrated video content generating unit 50D. Similarly, the 2 nd display device 32D transmits the 2 nd resolution information indicating the resolution of 2K to the integrated video content generating unit 50D. The integrated video content generating unit 50D generates the integrated video content 100 by performing conversion so that the ratio of the horizontal widths of the local video contents C1 and C2 in the integrated video content 100 is 2 to 1, based on the 1 st and 2 nd resolution information.

Fig. 12 is a block diagram showing a detailed configuration example of the video conversion device 20D of the video display system 1D of fig. 10. In fig. 12, the video conversion device 20D differs from the video conversion device 20B in fig. 8 in that the video conversion processing unit 250D also inputs video format information via the information input unit 230D. The video conversion processing unit 250D cuts out the local video contents to be displayed on the 1 st and 2 nd display devices from the integrated video contents 100 included in the input integrated video signal based on the input video format information, and outputs the 1 st and 2 nd video signals Sc1 and Sc 2.

In this way, the video display system 1D in fig. 10 generates the integrated video content 100 by scaling the local video contents C1 and C2 based on the resolution information indicating the resolution of the video displayed by the 1 st and 2 nd display devices 31D and 32D such that the ratio of the resolution of the local video contents C1 and C2 in the integrated video content 100 is equal to the ratio of the resolution of the video displayed by the 1 st and 2 nd display devices 31D and 32D. Thus, when the 1 st and 2 nd images are displayed by the 1 st and 2 nd display devices, the resolution of the two images is matched, and the sense of incongruity between the displayed images can be reduced. The integrated video content 100 may be generated so that the fineness of the display video is uniform based on the ratio of the display pixel sizes of the 1 st and 2 nd display devices. Further, the integrated video content 100 may be generated based on the overscan information that a part of the video is not highlighted from the displayable area of the display device, so that the highlighted part is displayed by another display device, or the highlighted part is not included in the integrated video content 100. In the present embodiment, the integrated video content generating means 50D acquires the 1 st and 2 nd resolution information from the 1 st and 2 nd display devices 31D and 32D, but the 1 st and 2 nd resolution information may use a value stored in advance in the integrated video content generating means 50D.

(embodiment mode 6)

Fig. 13 is a block diagram showing a configuration example of the video display system 1E according to embodiment 6. In fig. 13, the video display system 1E further includes an output device 33E, compared to the video display system 1 of fig. 2. The output device 33E is, for example, a temperature control device capable of adjusting the temperature of each point of the rectangular area, or an output device such as a blower capable of blowing wind at an arbitrary wind speed from each point of the rectangle.

Fig. 14 is a schematic diagram showing a configuration example of the integrated video content 100 in the video display system 1E of fig. 13. The integrated video content 100 includes the local video content C3 corresponding to the output device 33E in addition to the local video contents C1 and C2 corresponding to the 1 st and 2 nd display devices 31E and 32E. In fig. 14, the local video content C3 includes a video signal for controlling the output device 33E instead of representing a video to be displayed on any display device.

Fig. 15 is a block diagram showing a detailed configuration example of the video conversion device 20E of fig. 13. In fig. 15, the video converter 20E further includes a device control signal buffer 263 and a device control signal output unit 273, compared to the video converter 20B in fig. 8. The video conversion processing unit 250E cuts out the partial video contents C1, C2, and C3 corresponding to the 1 st display device 31E, the 2 nd display device 32E, and the output device 33E, respectively, from the integrated video content 100. Then, the 1 st video signal Sc1 including the local video content C1 is output to the 1 st display device 31E via the 1 st video output buffer 261B and the 1 st video output unit 271, the 2 nd video signal Sc2 including the local video content C2 is output to the 2 nd display device 32E via the 2 nd video output buffer 262B and the 2 nd video output unit 272, and the device control signal Sc3 including the local video content C3 is output to the output device 33E via the device control signal buffer 263 and the device control signal output unit 273. The relationship between the operation of the local video content C3 and the operation of the output device 33E will be described below.

Fig. 16A is a schematic diagram showing an example of the correspondence relationship between the luminance and the temperature of the pixel in the local image content C3 of fig. 14. Fig. 16A is a graph having a gradation of luminance with white at the left end and black at the right end, where white pixels indicate a temperature 5 degrees higher than a predetermined reference value, and as the temperature becomes closer to black, the temperature shown becomes lower, and black pixels indicate a temperature 5 degrees lower than the predetermined reference value.

Fig. 16B is a schematic diagram showing an example of the correspondence relationship between the luminance of the pixel and the wind speed in the local video content C3 in fig. 14. The partial image content C3 in fig. 16B has the same gradation as in fig. 16A, and white indicates that wind is generated at 2 meters per second, and black indicates that wind is not generated.

Fig. 17A is a schematic diagram showing an example of the local video content C3 in fig. 14. Fig. 17A is a diagram showing a gradation of luminance in which the center is black and the ends of the four corners are white. The luminance of each pixel corresponds to the temperature in the correspondence relationship shown in fig. 16A, and the output device 33E as the temperature adjustment device is controlled so as to adjust the temperature so that the temperature at the end portions of the four corners becomes higher by 5 degrees and becomes lower by 5 degrees at the center as the temperature becomes lower from the center in accordance with the device control signal including the local video content C3.

Fig. 17B is a schematic diagram showing another example of the local video content C3 in fig. 14. Fig. 17B is a diagram with gradation of luminance in which the upper right end is black and the lower left end is white. The luminance of each pixel corresponds to the wind speed in the correspondence relationship of fig. 16B, and the output device 33E as the blowing means is controlled to adjust the intensity of the blown wind so that the wind blown from the lower left end has a wind speed of 2 meters per second, and the farther from this point, the weaker wind, and the upper right end become no wind, based on the device control signal including the local video content C3.

As described above, the video display system 1E includes the output device 33E. The video converter 20E cuts out the local video contents C1, C2, and C3 from the integrated video content 100, and outputs the video signal and the device control signal to the corresponding display device and output device, respectively. The display device displays a video image based on the transmitted video signal, and the output device is controlled in accordance with the transmitted device control signal. Thus, various devices other than the display device can be simultaneously controlled by integrating the video content 100. The output device controlled in accordance with the device control signal may be a speaker that outputs sound, a lighting device that can adjust brightness and color, or a device that can output odor.

(other embodiments)

As described above, embodiments 1 to 6 have been described as technical examples disclosed in the present disclosure. However, the technique in the present disclosure is not limited to this, and can be applied to an embodiment in which changes, substitutions, additions, omissions, and the like are appropriately made. Further, the components described in the above embodiments may be combined to form a new embodiment. Therefore, in the following, other embodiments are exemplified.

Fig. 18A to 18K are schematic views showing examples of the integrated video content 100 according to modifications 1 to 11, respectively. The following briefly describes the effects of the case of using the integrated video content 100 of fig. 18A to 18K. In common in fig. 18A to 18K, the partial video content Ci (i is an integer of 1 or more) of the integrated video content 100 indicates a partial video content to be displayed on the ith display device in the integrated video content 100. The partial video content C0 represents an unused region to which no video content is assigned, and the frame Ci (j) represents the jth frame of the partial video content Ci. However, in the drawings, the reference numerals for integrating the video content 100 are omitted for simplicity. One or more of the plurality of display devices may be the output device described in embodiment 6.

In fig. 18A, the integrated video content 100 includes the local video contents C1-C4. By using the integrated video content 100 as described above, 3 or more display devices or output devices can be simultaneously controlled.

In fig. 18B, the integrated video content 100 includes local video contents C1 and C2, and local video contents C3 to C6 smaller than the local video contents C1 and C2. By using the integrated video content 100 as described above, it is possible to simultaneously control a plurality of video display devices having different shapes and resolutions of the video to be displayed.

In fig. 18C, the integrated video content 100 includes the local video content C0. The local video content C0 assigned as an unused region is a pixel of all black. This can suppress the size of the data of the integrated video content 100.

In fig. 18D, the integrated video content 100 includes local video contents C1 and C2 that are rotated by 90 degrees from the actual display video. In this way, by using the entire area of the integrated video content 100, transmission of unnecessary data including unused areas can be suppressed, and data that can be transmitted can be increased.

Fig. 18E shows the 1 st frame of the integrated video content 100, and the integrated video content 100 of fig. 18E includes the 1 st to 2 nd frames (C1(1) and C1(2)) of the local video content C1 and the 1 st to 2 nd frames (C2(1) and C2(2)) of the local video content C2. By including a plurality of frames of the display device in the integrated video content 100 in this manner, it is possible to display a video having a higher frame rate than the integrated video content 100.

In fig. 18F, the integrated video content 100 is configured such that the ratio of the local video contents C1 and C2 is equal to the ratio of the display resolution, as described in embodiment 5. Therefore, the display resolution between the display images is consistent, and the sense of incongruity between the two display images can be reduced.

In fig. 18G, the integrated video content 100 includes the local video contents C1-C4. The local video content C1 entirely occupies the width of the integrated video content 100 and is configured to have the highest resolution. This increases the resolution of the video displayed on the 1 st display device. In this way, the arrangement of the local video content in the integrated video content 100 enables a free arrangement of transmitting the local video content of higher resolution to the display device that requires the display video of higher resolution.

In fig. 18H, the integrated video content 100 includes rectangular local video content C1 and concave local video content C2 arranged at the outer edge thereof. This is an example of the integrated video content 100 in which a 1 st display device, which is a flat panel display, and a 2 nd display device, which is larger than the 1 st display device, are simultaneously caused to display video images, respectively. In this way, the partial image content is not limited to a rectangle, and a free shape can be obtained by combining the display devices.

In fig. 18I, the horizontal axis represents time, the frame at the left end represents the 1 st frame of the integrated video content 100, and the integrated video content 100 is represented sequentially frame by frame. In this way, the integrated video content 100 is distributed in the time direction so that the 1 st and 2 nd local video contents are alternately displayed. Thus, although the frame rate of the display video of each display device is half of the integrated video content 100, the local video content with higher resolution can be included in the integrated video content 100.

In fig. 18J, even frames among the alternately appearing frames in fig. 18I include 3 local video contents C2 to C4. In this way, the region division as in the example of fig. 18B can be combined with the allocation in the time direction as in the example of fig. 18I.

In fig. 18K, the integrated video content 100 is a file compressed by the MPEG method, and two partial video contents are alternately displayed for each GOP (Group of Pictures, unit of frame aggregation in the MPEG compression method) instead of alternately displayed for each frame as in fig. 18I. Thereby, the compression rate and the image quality of the integrated video content 100 are improved.

As described above, the embodiments have been described as technical examples in the present disclosure. In addition, drawings and detailed description are provided for this purpose.

Therefore, not only the components necessary for solving the problem but also components not necessary for solving the problem may be included in the components described in the drawings and the detailed description to exemplify the above-described technology. Therefore, these unnecessary components should not be considered as essential because they are described in detail with reference to the drawings.

Further, the above-described embodiments are intended to exemplify the technology in the present disclosure, and various modifications, substitutions, additions, omissions, and the like can be made within the scope of the claims and their equivalents.

Industrial applicability

The present disclosure can be applied to an image display system including a plurality of image display devices having different display delay times.

-description of symbols-

1. 1A, 1B, 1C, 1D, 1E image display system

10. 10D image output device

100 integrating image content

20. 20A, 20B, 20D, 20E video conversion device

210 image input part

220 image input buffer

230. 230A, 230D information input unit

240. 240A delay correction arithmetic part

250. 250D and 250E image conversion processing unit

261. 261B output buffer for 1 st image

262. 262B 2 nd image output buffer

263 device control signal buffer

271 1 st video output unit

272 2 nd image output part

273 device control signal output part

31. 31A, 31B, 31C, 31D, 31E No. 1 display device

32. 32A, 32B, 32C, 32D, 32E No. 2 display device

33E output device

40 image pickup device

50B, 50C, 50D integrated video content generating unit

60 media server.