Film shooting method, device, and system

Abstract

The present invention relates to a film and television shooting method, device, system and Micro LED display screen. The film and television shooting method includes: prefabricating multiple different scene videos and outputting them to the LED display screen for time-sharing alternating display with double frequency; using a high-speed camera to shoot multiple prefabricated scene videos on the LED display screen; decomposing multiple scene signals and producing multiple versions of films. Before the step of prefabricating multiple different scene videos and outputting them to the LED display screen for time-sharing alternating display with double frequency, it also includes: a virtual rendering engine outputs multiple prefabricated scene videos in real time; changes the frame rate of multiple prefabricated scene videos according to a synchronization signal; and transmits multiple prefabricated scene videos to the LED display screen in a time-sharing alternating display in a double frequency manner. The present invention can achieve frame rate synchronization between the high-speed camera and the LED display screen through an external synchronization signal, so that the high-speed camera can shoot multiple different scenes at the same time, and produce multiple versions of films by decomposing multiple scenes in real time.

Description

Technical Field

[0001] The present invention belongs to the technical field of film and television shooting, and specifically relates to a film and television shooting method, device, and system. Background Art

[0002] XR refers to extended reality, which is a general term for virtual reality VR, augmented reality AR, mixed reality MR, and other immersive technologies. By shooting different scenes displayed on an LED display screen, a camera can see the synthetically rendered content in real time, not only can interact on site, but also directly see lighting, interactive light, layout, background, scene, etc. in the camera, and these do not need to be presented after post-production is completed, thus achieving what you see is what you get. XR film and television shooting provides high-quality virtual visualization production services for film, television, and event production. The performance design team can switch the scenes of the on-site LED display screen at any time and simultaneously perform real-time coverage of the real world outside the LED display screen.

[0003] Currently, the scenes displayed on the LED display screen can be switched at any time through a rendering engine, but multiple scenes cannot be displayed simultaneously and in parallel during camera shooting. When producing multi-version film and television works, it can only be achieved by shooting multiple times or replacing the scenes through post-production. Summary of the Invention

[0004] The purpose of the present invention is to provide a film and television shooting method, device, and system to solve the above technical problems.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The present invention provides a film and television shooting method, including:

[0007] Preparing multiple different scene videos for frequency doubling output and alternately displaying them on the LED display screen at different times;

[0008] Using a high-speed camera to shoot multiple pre-prepared scene videos on the LED display screen;

[0009] Decomposing the multi-scene signal and producing multi-version films.

[0010] Preferably, before the step of preparing multiple different scene videos for frequency doubling output and alternately displaying them on the LED display screen at different times, it further includes:

[0011] The virtual rendering engine outputs multiple pre-prepared scene videos in real time;

[0012] Changing the frame rate of multiple pre-prepared scene videos according to the synchronization signal;

[0013] Adopting a frequency doubling method to transmit multiple pre-prepared scene videos to the LED display screen for alternately displaying at different times;

[0014] Preferably, the step of using a high-speed camera to capture multiple prefabricated scene videos includes:

[0015] The high-speed camera captures according to the synchronization signal and different frame rate multiples corresponding to the frame rates of multiple prefabricated scene videos on the LED display screen.

[0016] The present invention also provides a film and television shooting device, including:

[0017] A virtual rendering engine for producing various different virtual scenes, animations, and special effects according to different plots, and rendering offline or in real time in the virtual rendering engine to generate multiple different prefabricated scene videos;

[0018] An LED control module for synchronously and frequency-multiplying and outputting videos of multiple different prefabricated scenes;

[0019] A synchronization signal generator for synchronizing the videos of multiple different prefabricated scenes output in the LED control module and the frame rate of the high-speed camera shooting;

[0020] The virtual rendering engine outputs multiple prefabricated scene videos to the LED control module in real time. The LED control module receives multiple prefabricated scene videos and changes the frame rate of transmitting the scene videos according to the synchronization signal sent by the synchronization signal generator.

[0021] Preferably, the LED control module further includes a frequency multiplication unit and a signal receiving unit. The frequency multiplication unit is used to frequency-multiply and output the scene video; the signal receiving unit is used to receive the synchronization signal of the synchronization signal generator.

[0022] The present invention also provides a film and television shooting system, including:

[0023] The film and television shooting device according to any one of the above embodiments;

[0024] An LED display screen for displaying different scene videos;

[0025] A high-speed camera for high-speed shooting and imaging;

[0026] A real-time video playback module for decomposing multiple frequency-multiplied scene videos;

[0027] A film and television production server for post-production of film and television;

[0028] The film and television shooting device outputs different scene videos with changed frame rates to the LED display screen; after the high-speed camera shoots the LED display screen, the captured video is output to the real-time video playback module, and the real-time video playback module decomposes different scene videos through multiple channels and then outputs them to the film and television production server. The film and television shooting system is used to implement the film and television shooting method in any one of the above embodiments.

[0029] Preferably, the LED display screen includes: a Micro LED and / or a Mini LED display screen.

[0030] Preferably, the film and television shooting device is also used to synchronously lock the frame rates of different scene videos displayed on the LED display screen and the shooting frame rate of the high-speed camera.

[0031] Preferably, the frame rate multiples of the high-speed camera shooting include 2 times, 3 times, 4 times, 6 times, and / or 8 times.

[0032] Preferably, the real-time video playback module supports the input and output of shooting formats, including: shooting formats of 3G-SDI and / or 12G-SDI.

[0033] As can be seen from the above, the present invention application has the following beneficial effects: it can render multiple different scene videos in real time through a rendering engine and alternately display multiple different scene videos in real time on the LED display screen; it can achieve frame rate synchronization between the high-speed camera and the LED display screen through an external synchronization signal, enabling the high-speed camera to shoot multiple different scenes at the same time, and producing multiple versions of films after real-time decomposition of multiple scenes. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a flowchart of a film and television shooting method according to an embodiment of the present invention;

[0035] Figure 2 It is a flowchart of a film and television shooting method according to another embodiment of the present invention;

[0036] Figure 3 It is a schematic diagram of a film and television shooting device according to an embodiment of the present invention;

[0037] Figure 4 It is a schematic diagram of a film and television shooting system according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] To better understand the above objects, features, and advantages of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without 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 commonly understood by those skilled in the technical field to which the present invention belongs. 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.

[0039] Please refer to Figure 1 , Figure 1 which is a flowchart of a film and television shooting method according to an embodiment of the present invention; the film and television shooting method includes:

[0040] Step S110: Pre-prepare multiple different scene videos and output them to the LED display for time-sharing and alternating display;

[0041] Step S120: Use a high-speed camera to shoot multiple pre-prepared scene videos on the LED display;

[0042] Step S130: Decompose the multi-scene signal and produce multiple versions of the film.

[0043] Please refer to Figure 2 , Figure 2 which is a flowchart of a film and television shooting method according to another embodiment of the present invention; the film and television shooting method includes:

[0044] Step S210: The virtual rendering engine outputs multiple pre-prepared scene videos in real time;

[0045] Step S220: Change the frame rate of multiple pre-prepared scene videos according to the synchronization signal;

[0046] Step S230: Use the frequency doubling method to transmit multiple pre-prepared scene videos to the LED display for time-sharing and alternating display;

[0047] Step S240: Use a high-speed camera to shoot multiple pre-prepared scene videos on the LED display;

[0048] Step S250: Decompose the multi-scene signal and produce multiple versions of the film.

[0049] In some alternative embodiments, the step of using a high-speed camera to capture multiple prefabricated scene videos further includes: the high-speed camera captures according to different frame rate multiples corresponding to the synchronization signal and the frame rates of multiple prefabricated scene videos on the LED display screen. Specifically, if 3 different prefabricated scenes are input simultaneously, the high-speed camera captures in real time at 3 times the frame rate. Through the film and television shooting method of the above embodiments, multiple different scenes can be captured simultaneously and multiple versions of films can be produced, without the need for multiple shootings or post-production scene replacement.

[0050] Please refer to Figure 3 , Figure 3 which is a schematic diagram of a film and television shooting device according to an embodiment of the present invention; the film and television shooting device 1 includes:

[0051] A virtual rendering engine 4 for producing various different virtual scenes, animations, and special effects according to different plots, and performing offline or real-time rendering in the virtual rendering engine to generate multiple different prefabricated scene videos;

[0052] An LED control module 2 for synchronously and frequency-multiplying the output of videos of multiple different prefabricated scenes;

[0053] A synchronization signal generator 3 for synchronizing the frame rates of the videos of multiple different prefabricated scenes output in the LED control module 2 and the frame rate of the high-speed camera shooting;

[0054] The virtual rendering engine 4 outputs multiple prefabricated scene videos to the LED control module 2 in real time. The LED control module 2 receives multiple prefabricated scene videos and changes the frame rate of transmitting the scene videos according to the synchronization signal sent by the synchronization signal generator 3.

[0055] In some other alternative embodiments, the LED control module 2 further includes a frequency doubling unit 22 and a signal receiving unit 21. The frequency doubling unit 22 is used to frequency-multiply the output of the scene video; the signal receiving unit 21 is used to receive the synchronization signal of the synchronization signal generator.

[0056] Through the film and television shooting device of the above embodiments, multiple scenes are alternately displayed on the LED display screen at the same time. After being captured by the high-speed camera, only by synchronizing the frame rate signals of the LED display screen and the high-speed camera can multi-scene signals be captured, without the need for multiple shootings or post-production replacement of different scenes.

[0057] Please refer to Figure 4 , Figure 4 which is a schematic diagram of a film and television shooting system according to an embodiment of the present invention; the XR film and television shooting system 9 includes:

[0058] The film and television shooting device 1 according to any of the above embodiments;

[0059] An LED display screen 5 for displaying different scene videos;

[0060] A high-speed camera 6 for high-speed shooting and imaging;

[0061] A real-time video playback module 7 for decomposing multiple said scene videos with frequency doubling;

[0062] A film and television production server 8 for post-production of film and television;

[0063] The film and television shooting device 1 outputs different scene videos with changed frame rates to the LED display screen 5; after the high-speed camera 6 shoots the LED display screen 5, the shot video is output to the real-time video playback module 7, and the real-time video playback module 7 outputs the decomposed different scene videos through multiple channels to the film and television production server 8.

[0064] In some alternative embodiments, the LED display screen includes: a Micro LED and / or a Mini LED display screen and / or a module; wherein, the film and television shooting device 1 is further configured to synchronously lock the frame rates of the different scene videos displayed on the LED display screen 5 and the shooting frame rate of the high-speed camera 6. Specifically, the frame rate doubling of the high-speed camera 6 shooting includes 2 times, 3 times, 4 times, 6 times and / or 8 times. Specifically, if 2 different prefabricated scenes are input at the same time, the high-speed camera uses a 2-fold frame rate doubling for real-time shooting. If 3 different prefabricated scenes are input, the high-speed camera uses a 3-fold frame rate doubling for real-time shooting. The principles of 4 times, 6 times and 8 times are the same above. By selecting the frame rate doubling for shooting according to the number of different scenes, multiple different scenes can be shot and multiple versions of films can be produced at the same time, without the need to achieve through multiple shootings or post-production scene replacement. The real-time video playback module 7 supports the input and output of shooting formats, including: shooting formats of 3G-SDI and / or 12G-SDI; in some other alternative embodiments, the real-time video playback module 7 also supports the decomposition of high-frame-rate multi-channel input video signals.

[0065] The above-described embodiment system adopts frequency doubling and simultaneous alternate display technologies, enabling multiple scenes to be displayed on the LED display screen at the same time; the high-speed camera does not need to set too many parameters such as shutter and aperture, and only needs to be synchronized with the frame rate of the LED display screen through an external synchronization signal to capture multi-scene signals, and finally different versions of film and television works are restored and produced through the implementation of the playback system.

[0066] The embodiment of the present invention application also provides a Micro LED display screen, and the Micro LED display screen is used to implement the film and television shooting method described in any embodiment of the present invention application.

[0067] 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, to implement all or part of the processes in the above-described embodiments of the method, the present invention can also be accomplished by a computer program instructing relevant hardware. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above-described method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable storage medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the content included in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0068] Matters not described in the present invention are well-known technologies.

[0069] In several specific embodiments provided by the present invention, it should be understood that the disclosed system and method can be implemented in other ways. For example, the above-described system embodiments are merely illustrative. For example, the division of the components is only a logical function division, and there can be other division methods in actual implementation.

[0070] In addition, in each embodiment of the present invention, the functional modules / components can be integrated in the same processing module / component, or each module / component can exist physically alone, or two or more modules / components can be integrated in the same module / component. The above-mentioned integrated modules / components can be implemented in the form of hardware, or in the form of hardware plus software functional modules / components.

[0071] For those skilled in the art, it is obvious that the embodiments of the present invention are not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the embodiments of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the embodiments of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the embodiments of the present invention. Any reference signs in the claims should not be construed as limiting the claimed rights. In addition, it is obvious that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. The multiple units, modules or devices described in the system, apparatus or terminal claims can also be implemented by the same unit, module or device through software or hardware. The words such as first, second, etc. are used to denote names and do not denote any particular order.

[0072] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent shall be subject to the appended claims.

Claims

1. A method for filming a movie or TV drama, characterized in that, it includes: Preparing multiple different scene videos with frequency doubling output, and alternately displaying them on an LED display screen at different times; Using a high-speed camera to film multiple prepared scene videos on the LED display screen; Decomposing multi-scene signals and producing multiple versions of the film.

2. The method for filming a movie or TV drama according to claim 1, characterized in that, Before the step of alternately displaying the prepared multiple different scene videos with frequency doubling output on the LED display screen at different times, it further includes: A virtual rendering engine outputs multiple prepared scene videos in real time; Changing the frame rate of multiple prepared scene videos according to a synchronization signal; Using a frequency doubling method to transmit multiple prepared scene videos to the LED display screen for alternate display at different times; 3. The method for filming a movie or TV drama according to claim 2, characterized in that, In the step of using a high-speed camera to film multiple prepared scene videos, it includes: The high-speed camera takes pictures according to different frame rate multiples corresponding to the synchronization signal and the frame rate of multiple prepared scene videos on the LED display screen.

4. A filming device for a movie or TV drama, characterized in that, it includes: A virtual rendering engine, used to produce various different virtual scenes, animations, and special effects according to different plotlines, and perform offline or real-time rendering in the virtual rendering engine to generate multiple different prepared scene videos; An LED control module, used to synchronize and output videos of multiple different prepared scenes with frequency doubling; A synchronization signal generator, used to synchronize the frame rate of the videos of multiple different prepared scenes output in the LED control module and the frame rate of filming by the high-speed camera; The virtual rendering engine outputs multiple prepared scene videos to the LED control module in real time, the LED control module receives multiple prepared scene videos, and changes the frame rate of transmitting the scene videos according to the synchronization signal sent by the synchronization signal generator.

5. The filming device for a movie or TV drama according to claim 4, characterized in that, The LED control module further includes a frequency doubling unit and a signal receiving unit. The frequency doubling unit is used to output the scene video with frequency doubling; the signal receiving unit is used to receive the synchronization signal of the synchronization signal generator.

6. A filming system for a movie or TV drama, characterized in that, it includes: The filming device for a movie or TV drama according to any one of claims 4-5; An LED display screen, used to display different scene videos; A high-speed camera, used to take high-speed pictures and form images; A real-time video playback module, used to decompose multiple scene videos with frequency doubling; A film production server, used for post-production of movies or TV dramas; The filming device outputs different scene videos with changed frame rates to the LED display screen; after the high-speed camera films the LED display screen, the filmed video is output to the real-time video playback module, and the real-time video playback module decomposes different scene videos through multiple channels and then outputs them to the film production server. The filming system is used to implement the filming method according to any one of claims 1-3.

7. The filming system for a movie or TV drama according to claim 6, characterized in that, The LED display screen includes: a Micro LED and / or a Mini LED display screen.

8. The film and television shooting system according to claim 6, wherein, the film and television shooting device is further configured to synchronously lock different scene video frame rates displayed on the LED display screen and the shooting frame rate of the high-speed camera.

9. The film and television shooting system according to claim 8, wherein, the frame rate multiples of the high-speed camera shooting include 2 times, 3 times, 4 times, 6 times and / or 8 times.

10. The film and television shooting system according to claim 9, wherein, the real-time video playback module supports input and output of shooting formats, including: shooting formats of 3G-SDI and / or 12G-SDI.

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