A multi-camera LED display shooting method, system, device and storage medium

Abstract

The present invention relates to a multi-camera LED display shooting method, system, device and storage medium, the system comprising: a virtual display video server, for providing a background video of a corresponding viewing angle to an LED display screen control system; an LED display screen control system, for outputting a GENLOCK signal to a camera to synchronize the camera shutter shooting; an LED display screen, for cyclically displaying the background video of the camera corresponding viewing angle; a plurality of cameras, for adjusting the shutters respectively, to capture the background video with the offset time of the GENLOCK signal synchronization moment and the shutter opening time; the virtual display video server is connected to the LED display screen through the LED display screen control system and transmits data and signals; a plurality of cameras are connected to the LED display screen control system and transmits data and signals. The present invention fully meets the use of multi-camera LED display shooting, effectively reduces the cost and improves the shooting quality.

Description

Technical Field

[0001] The present invention belongs to the technical field of LED display shooting, and in particular relates to a multi-camera LED display shooting method, system, device and storage medium. Background Art

[0002] With the development of the times, the film and television industry has begun to adopt real-time virtual scene shooting, by obtaining digital information to play virtual exterior scenes, simulating real environment and climate information in the studio for distributed scene rendering, superimposing lens information to build channel pictures, LED screens to display images, real-time cameras to complete shooting, and synthesizing to obtain the final shooting picture. Existing technology can already replace green screen matting to achieve the effect of direct filming in most environments. However, when using a camera to shoot film and television programs, the LED display screen is used to generate the background, such as exterior scenes, architectural scenes, etc., if it is necessary to shoot multiple times at different camera positions, cameras at different camera positions, and the required LED display screen needs to display background videos with different perspectives. Several cameras shoot at multiple camera positions, and there are still technical problems in terms of synchronization and how to significantly improve the scene shooting quality of ultra-high-definition large LED display screens. Summary of the invention

[0003] The object of the present invention is to provide a multi-camera LED display shooting method, system, device and storage medium to solve the above technical problems.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] An embodiment of the present invention provides a multi-camera LED display shooting system, the system comprising:

[0006] The virtual display video server is used to provide a background video with a corresponding viewing angle to the LED display control system for each camera position;

[0007] The LED display control system is used to output a GENLOCK signal to all cameras to synchronize the camera shutter shooting;

[0008] An LED display screen is used to form a display sequence and cyclically display the background video corresponding to the viewing angle of the camera in the display sequence;

[0009] A plurality of cameras are used to adjust shutters respectively, so as to capture the background video corresponding to the camera's viewing angle and cyclically displayed on the LED display screen, with the offset time corresponding to the GENLOCK signal synchronization moment and the shutter opening time respectively;

[0010] The virtual display video server is connected to the LED display screen through the LED display screen control system and transmits data and signals; a plurality of cameras are connected to the LED display screen control system and transmit data and signals.

[0011] Preferably, the virtual display video server is also used to provide an additional background video from the human eye perspective to the LED display control system for each camera position;

[0012] The LED display screen is also used to cyclically display the background video from the human eye perspective at the scene;

[0013] Preferably, the LED display screen is also used to cyclically display the background video corresponding to the camera's perspective and the background video from the perspective of human eyes on site, while superimposing a compensation sequence of the camera's perspective video.

[0014] Preferably, the LED display screen obtains low-grayscale white after cyclically displaying the superimposed camera view video compensation sequence.

[0015] Preferably, the background video from the perspective of human eyes at the scene includes prompt information.

[0016] Preferably, between the LED display screen and the plurality of cameras, there is also a foreground area for performing and / or setting props in the foreground area.

[0017] An embodiment of the present invention further provides a multi-camera LED display shooting device, which is used to implement the multi-camera LED display shooting system described in any one of the present applications.

[0018] An embodiment of the present invention also provides a multi-camera LED display shooting method, the method comprising:

[0019] The virtual display video server provides a background video of the corresponding viewing angle to the LED display control system for each camera position;

[0020] The LED display control system outputs a GENLOCK signal to all cameras to synchronize the camera shutter shooting;

[0021] The LED display screen forms a display sequence, and cyclically displays the background video corresponding to the viewing angle of the camera in the display sequence;

[0022] Several cameras adjust their shutters respectively to respectively correspond to the offset time of the GENLOCK signal synchronization moment and the shutter opening time, so as to capture the background video corresponding to the camera's viewing angle displayed cyclically on the LED display screen.

[0023] Preferably, the virtual display video server also provides an additional background video from the human eye perspective to the LED display control system for each camera position;

[0024] The LED display screen also cyclically displays the background video from the perspective of human eyes at the scene, wherein the background video from the perspective of human eyes at the scene includes prompt information, and the prompt information includes lines and / or action requirement information;

[0025] The LED display screen cyclically displays the background video corresponding to the viewing angle of the camera and the background video from the viewing angle of the human eye at the scene, and simultaneously superimposes the video compensation sequence from the viewing angle of the camera to obtain low-grayscale white.

[0026] performing and / or applying props in the foreground area;

[0027] Several cameras adjust their shutters respectively to respectively correspond to the offset time of the GENLOCK signal synchronization moment and the shutter opening time, so as to capture the background video corresponding to the camera's viewing angle displayed cyclically on the LED display screen.

[0028] An embodiment of the present application further provides a storage medium on which a computer program is stored, wherein the computer program, when executed by a processor, implements the multi-camera LED display shooting method described in any embodiment of the present application.

[0029] An embodiment of the present application provides a multi-camera LED display shooting device, and the device is used to implement the multi-camera LED display shooting method described in any embodiment of the present application.

[0030] An embodiment of the present invention further provides an electronic device, which is used to implement the multi-camera LED display shooting method described in any embodiment of the present invention.

[0031] The invention provides a multi-camera LED display shooting method, system, device and storage medium, which have the following beneficial effects: several cameras can shoot the LED display screen at the same time and output the shooting effects synchronously, which greatly improves the efficiency of video shooting; large-scale outdoor shooting can be completed indoors, which greatly improves the image quality of the shot video and saves shooting costs; actors can perform lines, actions, etc. according to the prompt information on the LED display screen, and the relevant prompt information will not be captured by the camera, thereby saving shooting time and improving performance accuracy and efficiency; the application also has a more excellent video display effect, and can adjust the display accuracy for different cameras, thereby greatly improving the shooting quality, saving the technical difficulty and cost of complex visual effects, and is conducive to greatly improving the video shooting and playback quality of ultra-high-definition large LED display screens in the film and television industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of a multi-camera LED display shooting system according to an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of synchronous shooting of a multi-camera LED display shooting system according to an embodiment of the present invention;

[0034] Figure 3 This is a schematic diagram of synchronous shooting of a multi-camera LED display shooting system according to another embodiment of the present invention;

[0035] Figure 4 A flowchart of a multi-camera LED display shooting method according to an embodiment of the present invention;

[0036] Figure 5 This is a flow chart of a multi-camera LED display shooting method according to another embodiment of the present invention. DETAILED DESCRIPTION

[0037] In order to be able to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0038] See also Figure 1 , Figure 1 This is a schematic diagram of a multi-camera LED display shooting system according to an embodiment of the present invention; the system includes:

[0039] The virtual display video server 11 is used to provide a background video of a corresponding viewing angle to the LED display screen control system 12 for each camera at each camera position;

[0040] The LED display screen control system 12 is used to output a GENLOCK signal to all cameras to synchronize the camera shutter shooting;

[0041] The LED display screen 13 is used to form a display sequence and cyclically display the background video corresponding to the viewing angle of the camera in the display sequence;

[0042] A plurality of cameras (e.g., camera 21, camera 22, camera 23) are used to adjust the shutters respectively, so as to capture the background video corresponding to the camera's viewing angle and cyclically displayed on the LED display screen 13 according to the offset time of the GENLOCK signal synchronization moment and the shutter opening time;

[0043] Specifically, if Figure 2 As shown, the shutter of camera 21 is open when the LED display screen 13 displays the background video from the perspective of camera 21, the shutter is closed when the LED display screen 13 displays the background video from the perspective of camera 22, and the shutter is closed when the LED display screen 13 displays the background video from the perspective of camera 23;

[0044] The shutter of camera 22 is closed when the LED display screen 13 displays the background video from the perspective of camera 21, the shutter is opened when the LED display screen 13 displays the background video from the perspective of camera 22, and the shutter is closed when the LED display screen 13 displays the background video from the perspective of camera 23;

[0045] The shutter of camera 23 is closed when the LED display screen 13 displays the background video from the perspective of camera 21, the shutter is closed when the LED display screen 13 displays the background video from the perspective of camera 22, and the shutter is opened when the LED display screen 13 displays the background video from the perspective of camera 23;

[0046] The virtual display video server 11 is connected to the LED display screen 13 through the LED display screen control system 12 and transmits data and signals; a number of cameras (for example, camera 21, camera 22, camera 23) are connected to the LED display screen control system 12 and transmit data and signals; specifically, through the GENLOCK synchronization signal.

[0047] Specifically, if Figure 1 As shown, camera 21, camera 22, and camera 23 correspond to three camera positions, camera position a (the location of camera 21), camera position b (the location of camera 22), and camera position c (the location of camera 23), and so on. The cameras correspond to the positions; the virtual display video server 11 provides a background video of the corresponding perspective to the LED display control system 12 for each camera position; optionally, an additional background video of the human eye perspective is provided; the LED display control system 12 outputs a GENLOCK signal to camera 21, camera 22, and camera 23 for synchronized camera shutter shooting. The embodiment of the present application can shoot the LED display screen at the same time through several cameras, and output the shooting effect synchronously, which greatly improves the efficiency of video shooting; large-scale outdoor shooting can be completed indoors, which greatly improves the image quality of the shot video and saves the shooting cost.

[0048] In an optional embodiment of the present application, the virtual display video server 11 is also used to provide an additional background video from the perspective of human eyes at the scene to the LED display screen control system 12 for each camera (for example, camera 21, camera 22, camera 23);

[0049] The LED display screen 13 is also used to cyclically display the background video from the human eye perspective at the scene;

[0050] In an optional embodiment of the present application, if Figure 3 As shown, the LED display screen 13 is also used to cyclically display the background video corresponding to the camera's perspective and the background video from the perspective of human eyes on site, while superimposing the camera's perspective video compensation sequence.

[0051] Specifically, Figure 3 In the above, the background video from the perspective of camera 21 is the background video from the perspective of camera 21; the human eye video at the scene is the background video from the perspective of human eyes at the scene, and the video compensation from the perspective of camera 21 is the video compensation from the perspective of camera 21 superimposed at the same time;

[0052] The background video from the perspective of camera 22 is the background video from the perspective of camera 22; the human eye video at the scene is the background video from the perspective of human eyes at the scene, and the video compensation from the perspective of camera 22 is the video compensation from the perspective of camera 22 superimposed simultaneously;

[0053] The background video from the perspective of camera c is the background video from the perspective of camera 23; the human eye video at the scene is the background video from the perspective of the human eye at the scene, and the video compensation from the perspective of camera 23 is the video compensation from the perspective of camera 23 superimposed at the same time;

[0054] The above video is provided by LED display screen 13, as shown in Figure 4 The sequence shown is displayed cyclically for Figure 1 The cameras 21, 22 and 23 shown are shooting synchronously in real time.

[0055] In an optional embodiment of the present application, the LED display screen 13 obtains a low-grayscale white color after cyclically displaying the superimposed camera view video compensation sequence.

[0056] In an optional embodiment of the present application, the background video from the human eye perspective includes prompt information, including lines, performance actions, specific requirements, prop usage, etc., for actors and staff to perform or set up the stage on site.

[0057] In an optional embodiment of the present application, if Figure 1 As shown, between the LED display screen and the plurality of cameras (eg, camera 21, camera 22, camera 23), there is also a foreground area 14 for performing and / or setting props in the foreground area.

[0058] In an optional embodiment of the present application, the LED display screen control system is also used to control at least one MicroLED display screen.

[0059] The present application also provides a multi-camera LED display shooting device to implement the multi-camera LED display shooting system described in any embodiment of the present application.

[0060] See also Figure 4 , Figure 4 This is a flow chart of a multi-camera LED display shooting method according to an embodiment of the present application; the method comprises:

[0061] Step S110: The virtual display video server provides a background video of a corresponding viewing angle to the LED display control system for each camera at each camera position;

[0062] Step S120, the LED display screen control system outputs a GENLOCK signal to all cameras to synchronize the camera shutters for shooting;

[0063] Step S130: the LED display screen forms a display sequence, and cyclically displays the background video corresponding to the viewing angle of the camera in the display sequence;

[0064] Step S140, the plurality of cameras adjust their shutters respectively, so as to capture the background video corresponding to the camera's viewing angle and cyclically displayed on the LED display screen, with the offset time corresponding to the GENLOCK signal synchronization moment and the shutter opening time.

[0065] See also Figure 5 , Figure 5 This is a flow chart of a multi-camera LED display shooting method according to another embodiment of the present application; in another optional embodiment of the present application, the steps are as follows:

[0066] Step S210: the virtual display video server also provides an additional background video from the human eye perspective to the LED display control system for each camera position;

[0067] Step S220, the LED display screen further cyclically displays the background video from the perspective of human eyes at the scene, wherein the background video from the perspective of human eyes at the scene includes prompt information, and the prompt information includes lines and / or action requirement information;

[0068] Step S230, the LED display screen cyclically displays the background video of the camera's corresponding viewing angle and the background video of the human eye at the scene, and at the same time superimposes the camera's viewing angle video compensation sequence to obtain a low-grayscale white color.

[0069] Step S240, performing and / or applying props in the foreground area;

[0070] Step S250, the plurality of cameras adjust their shutters respectively, so as to capture the background video corresponding to the camera's viewing angle and cyclically displayed on the LED display screen, with the offset time corresponding to the GENLOCK signal synchronization moment and the shutter opening time.

[0071] The embodiments of the present invention also provide a multi-camera LED display shooting device, which is used to implement the multi-camera LED display shooting method described in any embodiment of the present invention.

[0072] An embodiment of the present invention application also provides an electronic device, including a processor and a machine-readable storage medium, wherein the machine-readable storage medium stores machine-executable instructions that can be executed by the processor. When called and executed by the processor, the processor-executable instructions prompt the processor to: implement the multi-camera LED display shooting method described in any embodiment of the present invention application.

[0073] The invention application fully meets the actual usage of the multi-camera LED display shooting method, effectively reduces costs, reasonably configures the process, improves equipment efficiency, can work continuously and stably, and has a very good effect.

[0074] An embodiment of the present invention application further provides a storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the multi-camera LED display shooting method described in any of the above embodiments.

[0075] In some optional embodiments, the LED display screen can be divided into display areas of equal or different sizes, and each area or each group of areas corresponds to several cameras, so as to implement the multi-camera LED display shooting system described in any embodiment of the present application, or to implement the multi-camera LED display shooting method described in any embodiment of the present application.

[0076] If the components / modules / units integrated in the system / computer device are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned implementation method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method implementations when executed by the processor. The above-mentioned hardware includes a processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable storage medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practices in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practices, computer-readable media do not include electrical carrier signals and telecommunication signals.

[0077] Matters not covered in the present invention are known technologies. The methods or steps in the present invention correspond to the functional modules / units / components in the system or device. In the several specific implementations provided in the present invention, it should be understood that the disclosed systems and methods can be implemented in other ways. For example, the system implementation described above is only schematic. For example, the division of the functional modules / units / components is only a logical function division, and there may be other division methods in actual implementation.

[0078] In addition, each functional module / component in each embodiment of the present invention may be integrated into the same processing module / component, or each functional module / unit / component may exist physically separately, or two or more modules / components may be integrated into the same module / component. The above-mentioned integrated modules / components may be implemented in the form of hardware or in the form of hardware plus software functional modules / components.

[0079] It is obvious to those skilled in the art that the embodiments of the present invention are not limited to the details of the above exemplary embodiments, and that the embodiments of the present invention can be implemented in other specific forms without departing from the spirit or basic features of the embodiments of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the embodiments of the present invention is limited by the attached claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the embodiments of the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved. In addition, it is obvious that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units, modules or devices stated in the system, device or terminal claims can also be implemented by the same unit, module or device through software or hardware. The words first, second, etc. are used to indicate names, and do not indicate any particular order.

[0080] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A multi-camera LED display shooting system, characterized in that: The system comprises: The virtual display video server is used to provide a background video with a corresponding viewing angle to the LED display control system for each camera position; The LED display control system is used to output a GENLOCK signal to all cameras to synchronize the camera shutter shooting; An LED display screen is used to form a display sequence and cyclically display the background video corresponding to the viewing angle of the camera in the display sequence; A plurality of cameras are used to adjust shutters respectively, so as to capture the background video corresponding to the camera's viewing angle and cyclically displayed on the LED display screen, with the offset time corresponding to the GENLOCK signal synchronization moment and the shutter opening time respectively; The virtual display video server is connected to the LED display screen through the LED display screen control system and transmits data and signals; a plurality of cameras are connected to the LED display screen control system and transmit data and signals.

2. The multi-camera LED display shooting system according to claim 1, characterized in that: The virtual display video server is also used to provide an additional background video from the human eye perspective to the LED display control system for each camera position; The LED display screen is also used to cyclically display the background video from the perspective of human eyes at the scene.

3. The multi-camera LED display shooting system according to claim 2, characterized in that: The LED display screen is also used to cyclically display the background video corresponding to the camera's viewing angle and the background video from the viewing angle of the human eye on site, while superimposing the camera's viewing angle video compensation sequence.

4. The multi-camera LED display shooting system according to claim 3, characterized in that: The LED display screen obtains low-grayscale white after cyclically displaying the superimposed camera view video compensation sequence.

5. The multi-camera LED display shooting system according to claim 2, characterized in that: The background video from the human eye perspective at the scene, Including prompt information.

6. The multi-camera LED display shooting system according to claim 1, characterized in that: The LED display screen control system is also used to control at least one Micro LED display screen.

7. The multi-camera LED display shooting system according to any one of claims 1 to 6, characterized in that: Also included between the LED display screen and the plurality of cameras is a foreground area for performing and / or setting props.

8. A multi-camera LED display shooting method, characterized in that: The method comprises: The virtual display video server provides a background video of the corresponding viewing angle to the LED display control system for each camera position; The LED display control system outputs a GENLOCK signal to all cameras to synchronize the camera shutter shooting; The LED display screen forms a display sequence, and cyclically displays the background video corresponding to the viewing angle of the camera in the display sequence; Several cameras adjust their shutters respectively to respectively correspond to the offset time of the GENLOCK signal synchronization moment and the shutter opening time, so as to capture the background video corresponding to the camera's viewing angle displayed cyclically on the LED display screen.

9. The multi-camera LED display shooting method according to claim 8, characterized in that: The virtual display video server also provides an additional background video from the human eye perspective to the LED display control system for each camera position: The LED display screen also cyclically displays the background video from the perspective of human eyes at the scene, wherein the background video from the perspective of human eyes at the scene includes prompt information, and the prompt information includes lines and / or action requirement information; The LED display screen cyclically displays the background video corresponding to the camera's viewing angle and the background video from the human eye's viewing angle on site, and at the same time superimposes the camera's viewing angle video compensation sequence to obtain low-grayscale white; performing and / or applying props in the foreground area; Several cameras adjust their shutters respectively to respectively correspond to the offset time of the GENLOCK signal synchronization moment and the shutter opening time, so as to capture the background video corresponding to the camera's viewing angle displayed cyclically on the LED display screen.

10. A storage medium, characterized in that: A computer program is stored thereon, wherein the computer program, when executed by a processor, implements the multi-camera LED display shooting method described in any one of claims 8-9.

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