TWI457877B - Display wall system and high-resolution graphics and images generation and display method - Google Patents

Description

Display wall system and high-resolution image generation display method

The present invention relates to a display wall system and a high-resolution image generation display method, and more particularly to a display wall system using a parallel processing and display architecture and a high-resolution image generation display method.

The conventional video wall system divides and enlarges a mother picture into a plurality of sub-pictures, and then combines the above-mentioned sub-pictures to generate a mother picture after being enlarged. However, although the traditional video wall enlarges the display of the mother image, the resolution cannot be improved. That is to say, each sub-picture cannot clearly resolve the details of the mother picture.

Referring to FIG. 1, FIG. 1 is a schematic diagram showing a video wall in the prior art. As shown in FIG. 1, the video wall 9 includes a video splitter 90, a video amplifier 92, a video distributor 94, and a display device array 96. The display device array 96 can be a combination of a plurality of display devices. For example, the display device can be a liquid crystal display (LCD), a cathode ray tube (CRT) or a projector.

After a mother picture is input to the video wall 9, the mother picture is first received by the video splitter 90, and the mother picture is divided into a plurality of first sub-pictures. Then, the plurality of first sub-pictures are transmitted to the video amplifier 92. Here, the video amplifier 92 is configured to scale up the plurality of first sub-pictures into a plurality of second sub-pictures and transmit them to the video distributor 94. Video distributor 94 can determine the location of each second sub-picture on display device array 96. That is, the video distributor 94 can all correspond to the plurality of second sub-pictures to the display device array 96 one by one. Finally, after the video distributor 94 distributes all of the second sub-pictures to the display device array 96, the user can see the enlarged mother picture from the display device array 96.

For example, after the video wall 9 divides a mother screen of 800×600 pixels by the video splitter 90 and enlarges it into four sub-pictures via the video amplifier 92, the combination of the four sub-pictures still only has a resolution of 800×600 pixels. That is to say, the traditional video wall is like a projector, which can only be used to scale the mother image to the screen, but can not display the mother image more clearly.

In summary, the conventional video wall uses a combination of a small-sized display device to display a large-sized picture, and a sub-area enlarges the mother picture. However, the resolution of the above-mentioned large-sized picture cannot be increased with size. Therefore, when the mother screen is enlarged and displayed as a large-sized screen, the resolution of the large-sized screen can be improved together, so that the mother screen can be expressed more clearly, which is a problem to be solved by the present invention.

Accordingly, one aspect of the present invention is to provide a display wall system that utilizes parallel processing, display architecture, and displays an image of an image scene.

The display wall system of the present invention comprises a first processor, a plurality of second processors and a display device group. The first processor is configured to generate a plurality of parameters and transmit the plurality of parameters. The plurality of second processors are respectively coupled to the first processor, and the plurality of second processors respectively correspond to one of the plurality of parameters, and each second processor receives the corresponding parameter, and according to the corresponding The parameter and the image scene data generate and output the at least one sub-image. The display device group includes a plurality of display devices respectively coupled to one of the plurality of second processors, each display device receiving and displaying the at least one sub image from the corresponding second processor One of them enables the display device group to combine the plurality of sub-images to display the image.

In practice, the first processor calculates the plurality of parameters according to a view information, each parameter includes a view range and a view direction information, and each second processor is configured according to the corresponding parameter. The viewing angle range and the viewing direction information and the image scene data determine a part of the image scene data, and generate the at least one sub-image according to the part of the image scene data. In a specific embodiment, the viewing angle information may include a set position and a viewing direction of the viewer, and the first processor correspondingly divides the plurality of viewing angle ranges and the viewing corresponding to each viewing angle range according to the position of the viewer. Direction information, and each second processor determines the corresponding image scene data according to the corresponding viewing angle range and the corresponding viewing direction information, and generates the at least one sub-image accordingly.

In addition, in practice, each second processor can execute an image scene data calculation program, such as an OpenGL application or various drawing programs, to generate the sub-image.

Another aspect of the present invention is to provide a high-resolution image generation display method for displaying a video image of an image scene using a parallel processing and display architecture in a display wall system.

The display wall system includes a first processor, a plurality of second processors, and a display device group. The high-resolution image generation display method of the present invention comprises the following steps: (a) generating a plurality of parameters by using the first processor and transmitting the plurality of parameters, wherein the plurality of second processors respectively correspond to the plurality of parameters (b) receiving, by the second processor, the corresponding parameter, and generating and outputting the at least one sub-image according to the corresponding parameter and the image scene data; and (c) receiving and receiving by using the display device group The plurality of sub-images are displayed in combination to form the image.

Similarly, in the implementation, in step (a), the first processor calculates the plurality of parameters according to a view information, and each parameter includes a view range and a view direction information. And in step (b), each second processor determines a part of the image scene data according to the viewing angle range of the corresponding parameter, the viewing direction information, and the image scene data, and according to the part Image scene data, the sub-image is generated. In a specific embodiment, the viewing angle information may include a set position and a viewing direction of the viewer, and the first processor correspondingly divides the plurality of viewing angle ranges and the corresponding viewing direction information according to the position of the viewer. And each second processor determines the corresponding part of the image scene data according to the corresponding viewing angle range and the corresponding viewing direction information, and generates the sub-image accordingly.

In addition, in practice, in step (b), each second processor can execute an image scene data calculation program, such as an OpenGL application or various drawing programs, to generate the sub-image. Regarding the image scene data, before the step (b), the image processing data is transmitted to the plurality of second processors by the first processor. In addition, the display device group can include a plurality of display devices respectively coupled to one of the plurality of second processors, so in step (c), the display device group can be self-contained by each display device. The corresponding second processor receives and displays one of the at least one sub-images to display the image in combination.

In summary, the display wall system and the high-resolution image generation display method of the present invention use the first processor to assign a viewing angle range corresponding to each display device and corresponding viewing direction information to the corresponding second processor, and then use the first The second processor synchronizes the corresponding partial image scene data according to the corresponding viewing angle range and the corresponding viewing direction information to generate at least one sub-image, and finally displays the corresponding sub-image via each display device. Since the generation of the sub-image can be implemented by the image scene data calculation program, the resolution of the sub-image is the same as the resolution of the display device, and thus the large-size image displayed by the display wall composed of the plurality of display devices can be displayed. Present high resolution.

Further understanding of the advantages and spirit of the invention will become apparent from the Detailed Description

Referring to FIG. 2, FIG. 2 is a functional block diagram of a display wall system 1 according to an embodiment of the present invention. The display wall system 1 is for combining to display an image of an image scene material, which includes a first processor 10, four second processors 12, 14, 16, 18 and a display device group 20. The display device group 20 includes four display devices 200, 202, 204, and 206 coupled to the second processors 12, 14, 16, and 18, respectively. The second processors 12, 14, 16, 18 are then coupled to the first processor 10, respectively.

Please refer to FIG. 3, which is a schematic diagram showing the division of the image plane Im into four display areas. The image plane Im can be regarded as a display range of an image of the image scene data or a display range composed of the display devices 200, 202, 204, and 206. The first processor 10 calculates the viewing angle range Sa of the corresponding display area A according to a viewing angle information, such as the viewing angle position Vp (the position of the viewer) in FIG. 3 and the viewing direction formed by the relative image plane Im (only one set is indicated) The information and the corresponding viewing direction information (the viewing angle position Vp is related to the viewing direction of the display area A), and the information is packaged into a parameter form. As shown in FIG. 3, the first processor 10 will generate four parameters, each including a viewing angle range Sa and corresponding viewing direction information, and transmit the information to the second processors 12, 14, 16, 18. It should be noted that the range of viewing angles is expressed in solid angles, but the invention is not limited thereto. In addition, although the image plane Im shown in FIG. 3 is seamlessly divided into four display areas, the present invention is not limited thereto. For example, when the display devices 200, 202, 204, and 206 have a frame and there is an area that cannot be displayed, in order to make the image displayed by the display wall system 1 smooth, the image plane Im needs to be divided into a display to define the display area.

After receiving the corresponding parameters, the second processor 12, 14, 16, 18 parses the corresponding viewing angle range Sa and the corresponding viewing direction information, according to the viewing angle range Sa, the corresponding viewing direction information, and the image scene data. The image scene data corresponding to the portion of the viewing angle range Sa may be determined, and the sub-images are generated according to the image scene data of the portion, and transmitted to the display devices 200, 202, 204, 206 for display. In practice, the second processor 12, 14, 16, 18 can execute an image scene data calculation program, such as an OpenGL application or various drawing programs, to generate the sub-image.

Therefore, after the second processor 12, 14, 16, 18 is connected to the parameters required by the first processor 10, the image scene data is processed simultaneously and in parallel to generate the sub-images. Since the first processor 10 works mainly to generate parameters, the amount of calculation is much smaller than that of processing the image scene data, and the operation of processing the image scene data is performed by the four second processors 12, 14, 16, 18 simultaneously. Parallel processing greatly shortens the total processing time, so the display speed of the display wall system 1 can be improved. In addition, since the generation of the sub-image can be implemented by the image scene data calculation program, the resolution of the sub-image is the same as the resolution of the display devices 200, 202, 204, and 206, and thus the plurality of display devices 200 and 202 are provided. The large-size image displayed by the combination of the display walls composed of 204 and 206 can exhibit high resolution.

In addition, in practice, the first processor 10 can be a desktop computer or a notebook computer, and the second processors 12, 14, 16, 18 can also be desktop computers or notebook computers, respectively. The devices 200, 202, 204, 206 may also be liquid crystal displays, cathode ray tubes or projectors, respectively. In addition, the second processors 12, 14, 16, 18 may respectively include a display interface module, such as a display card, and output the sub-images to the display devices 200, 202, 204, 206 via the display interface modules. .

Referring to FIG. 4, FIG. 4 is a functional block diagram of a display wall system 1' according to another embodiment of the present invention. The display wall system 1' is substantially the same as the display wall system 1 of FIG. 2, except that the switch 10 is between the first processor 10 and the second processor 12, 14, 16, 18 of the display wall system 1' (or A hub) connection, that is, a switch 30 is coupled to the first processor 10 and the second processors 12, 14, 16, 18, respectively. Accordingly, the second processor 12, 14, 16, 18 receives the corresponding parameters via the switch 30. In this architecture, the first processor 10 and the second processor 12, 14, 16, 18 can form an Ethernet form, that is, the first processor 10 and the second processor 12, 14, 16, 18 Transfer data via Ethernet. In another embodiment, the switch 30 is also replaced by a network, for example, the first processor 10 and the second processor 12, 14, 16, 18 communicate via the Internet.

Referring to FIG. 5, FIG. 5 is a functional block diagram of a display wall system 3 according to another embodiment of the present invention. The difference from the display wall system 1 of FIG. 2 is that the second processors 12, 14 of the display wall system 3 are coupled to the two display devices 200, 202, 204, 206, respectively. Therefore, the parameters received by each of the second processors 12, 14 include a range of viewing angles that is approximately twice the viewing angle range Sa in FIG. 3, and the second processor 12 generates two sub-images for corresponding output to the display device. 200, 202, another second processor 14 is also the same. It should be noted that the second processor of the present invention is not limited to being coupled to two display devices, and is not limited to each second processor being coupled to the same number of display devices. In addition, in the display wall system 3, the display area A (see FIG. 3) that each second processor 12, 14 is responsible for is also not necessary for adjacent, so when a single second processor is coupled to multiple When the device is displayed, the range of the viewing angle and the corresponding viewing direction information may be a collection of discrete viewing angle ranges, which are not described.

For a flowchart of the high-resolution image generation and display method of the present invention, reference may be made to FIG. 6 , which illustrates a flow of a high-resolution image generation and display method according to an embodiment of the present invention. Figure. The high-resolution image generation and display method of the present invention is used in a display wall system to display an image of an image scene. The display wall system can refer to the foregoing specific implementation columns, and details are not described herein again.

As shown in FIG. 6, the high-resolution image generation display method first generates a plurality of parameters and transmits the plurality of parameters according to a view information (for example, a view position Vp and a viewing direction thereof) by using the first processor 10, as shown in step S102. Shown. The second processor 12, 14, 16, 18 respectively corresponds to one of a plurality of parameters, and each parameter includes a viewing angle range Sa and corresponding viewing direction information.

Then, as shown in step S104, the second processor 12, 14, 16, 18 respectively receives the corresponding parameter, and generates and outputs a sub-image according to the corresponding parameter and the image scene data. After receiving the corresponding parameters, the second processor 12, 14, 16, 18 parses the corresponding viewing angle range Sa and the corresponding viewing direction information, according to the viewing angle range Sa, the corresponding viewing direction information, and the image scene. The data may determine the image scene data corresponding to the portion of the viewing angle range Sa, and then generate the sub-image according to the image scene data of the portion, and transmit the image to the display devices 200, 202, 204, and 206. In practice, the second processor 12, 14, 16, 18 can execute an image scene data calculation program, such as an OpenGL application or various drawing programs, to generate the sub-image.

Finally, as shown in step S106, the plurality of sub-images are received by the display device group 20, and the plurality of sub-images are displayed in combination by the display devices 200, 202, 204, and 206 to form the image. The display devices 200, 202, 204, and 206 respectively receive and display the sub-images from the second processors 12, 14, 16, 18 coupled thereto, so that the high-resolution image generation display method can be performed by the plurality of display devices. A large-size image displayed by a combination of display walls composed of 200, 202, 204, and 206 can exhibit high resolution.

In addition, when a single second processor is coupled to a plurality of display devices at the same time, the second processor generates a plurality of sub-images corresponding to the plurality of display devices coupled thereto, and outputs the plurality of sub-images to corresponding Display device for display. The operation descriptions of other configurations and deformations have been described above and will not be described herein. In addition, the image scene data used by the second processor may be transmitted by the first processor to the second processor or otherwise stored in the second processor before step S104.

In summary, the display wall system and the high-resolution image generation display method of the present invention use the first processor to assign a viewing angle range corresponding to each display device and corresponding viewing direction information to the corresponding second processor, and then use the first The second processor synchronizes the corresponding partial image scene data according to the corresponding viewing angle range and the corresponding viewing direction information to generate at least one sub-image, and finally displays the corresponding sub-image via each display device. Since the generation of the sub-image can be implemented by the image scene data calculation program, the resolution of the sub-image is the same as the resolution of the display device, and thus the large-size image displayed by the display wall composed of the plurality of display devices can be displayed. The high resolution is presented, so that the user can view the local details of the image scene data, and can take into account the macroscopic view of the overall image scene data.

The features and spirit of the present invention will be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed. Therefore, the scope of the patented scope of the invention should be construed as broadly construed in the

9‧‧‧TV wall

90‧‧‧Video Splitter

92‧‧‧Video Amplifier

94‧‧‧Video distributor

96‧‧‧Display device array

1,1', 3‧‧‧ display wall system

10‧‧‧First processor

12‧‧‧second processor

14‧‧‧second processor

16‧‧‧second processor

18‧‧‧second processor

20‧‧‧Display device group

30‧‧‧Exchanger

200. . . Display device

202. . . Display device

204. . . Display device

206. . . Display device

Im. . . Image plane

Vp. . . Perspective position

Sa. . . Range of view

S102~S106. . . step

Figure 1 is a schematic diagram showing a video wall in the prior art.

2 is a functional block diagram of a display wall system in accordance with an embodiment of the present invention.

Figure 3 is a schematic diagram showing the division of the image plane into four display areas.

4 is a functional block diagram of a display wall system in accordance with another embodiment of the present invention.

Figure 5 is a functional block diagram of a display wall system in accordance with another embodiment of the present invention.

6 is a flow chart showing a high-resolution image generation and display method according to an embodiment of the present invention.

1. . . Display wall system

10. . . First processor

12. . . Second processor

14. . . Second processor

16. . . Second processor

18. . . Second processor

20. . . Display device group

200. . . Display device

202. . . Display device

204. . . Display device

206. . . Display device

Claims (13)

A display wall system for displaying an image of an image scene data, the display wall system comprising: a first processor for generating a plurality of parameters and transmitting the plurality of parameters, wherein the first processor is configured according to a plurality of viewing direction information corresponding to the plurality of viewing angle ranges and corresponding to the plurality of viewing angle ranges, and the plurality of parameters are calculated, each of the parameters including a viewing angle range and a viewing direction information; The second processors are respectively coupled to the first processor, and the plurality of second processors respectively correspond to one of the plurality of parameters, and each second processor receives the corresponding parameter, and according to the corresponding a parameter and the image scene data, generating and outputting at least one sub-image; and a display device group comprising a plurality of display devices respectively coupled to one of the plurality of second processors, each The display device receives and displays one of the at least one sub-images from the corresponding second processor, so that the display device group can combine the plurality of sub-images to display the image. The display wall system of claim 1, wherein each second processor performs an image scene data operation according to the viewing angle range of the corresponding parameter, the viewing direction information, and the image scene data. The program determines a part of the image scene data, and generates the at least one sub-image according to the image scene data of the portion. The display wall system of claim 1, further comprising a switch coupled to the first processor and the plurality of second processors, each of the second processors receiving the switch via the switch Corresponding parameters. The display wall system of claim 3, wherein the first processor and the second processors transmit data via an Ethernet network. The display wall system of claim 1, wherein each second processor further comprises at least one display interface module, and outputs the at least one sub image to the corresponding display via the at least one display interface module Device. The display wall system of claim 5, wherein the display interface module is a display card. The display wall system of claim 1, wherein the first processor is a desktop computer or a notebook computer. The display wall system of claim 1, wherein each of the second processors is a desktop computer or a notebook computer. The display wall system of claim 1, wherein each display device is a liquid crystal display, a cathode ray tube or a projector. A high-resolution image generation display method for a display wall system for displaying an image of an image scene data, the display wall system comprising a first processor, a plurality of second processors, and a display device group, The high-resolution image generation display method includes the following steps: (a) generating a plurality of parameters by using the first processor and transmitting the plurality of parameters, wherein the first processor is correspondingly segmented according to a viewer's perspective information. The plurality of viewing angles and the plurality of viewing direction information corresponding to the plurality of viewing angle ranges, the plurality of parameters are calculated, each of the parameters includes a viewing angle range and a viewing direction information, and the plurality of second processors respectively correspond to the plurality of parameters One of the parameters; (b) receiving, by the second processor, the corresponding parameter, and generating and outputting at least one sub-image according to the corresponding parameter and the image scene data; and (c) utilizing the display device group The plurality of sub-images are received and combined to form the image. The high-resolution image generation display method according to claim 10, wherein in the step (b), the second processor uses the execution angle according to the viewing angle range of the corresponding parameter and the image scene data. The image scene data calculation program determines a part of the image scene data, and generates the at least one sub image according to the image scene data of the portion. The high-resolution image generation display method according to claim 10, wherein the display device group includes a plurality of display devices respectively coupled to one of the plurality of second processors, in step (c) Receiving, by the display device group, the display device from the corresponding second processor One of the at least one sub-images is displayed to display the image in combination. The high-resolution image generation display method according to claim 10, further comprising the step of: transmitting the image scene data to the plurality of second processors by using the first processor before the step (b) .