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Virtual studio system with multiple-to-multiple structure

A virtual studio, many-to-many technology, applied in the parts of the TV system, the parts of the color TV, the TV, etc., can solve the problems of the quality and efficiency of the broadcast of the program, and the safety factor of the live broadcast, etc., and improve the efficiency. , the effect of improving quality and efficiency

Inactive Publication Date: 2013-05-01
CHINA DIGITAL VIDEO BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the safety factor for live broadcasting is low, because once the graphics workstation fails, it will directly affect the broadcasting. At the same time, since there is only one camera position that can be previewed, it can only be cut blindly when the camera position is switched. Therefore, this structure makes The quality and efficiency of program broadcasting are greatly reduced

Method used

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  • Virtual studio system with multiple-to-multiple structure
  • Virtual studio system with multiple-to-multiple structure
  • Virtual studio system with multiple-to-multiple structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] image 3 A virtual studio system with a two-to-two structure is shown, that is, two cameras correspond to two channels. In the case that both graphics workstations can work normally, its working principle is similar to the one-to-one structure, that is, key image synthesizer 1 receives the foreground image sent by camera 1, and graphics workstation 1 receives the motion of camera 1 sent by encoding box 1 Parameters, graphics workstation 1 draws the background image corresponding to the current foreground image of camera 1, key image synthesizer 1 synthesizes the foreground image sent by camera 1 and the background image sent by graphics workstation 1; another channel is responsible for synthesizing the foreground image collected by camera 2 and the background image drawn by Graphics Workstation 2. The difference is that the foreground image collected by each camera is delayed by a delayer and sent to all video switchers connected to it, and the motion parameters of eac...

Embodiment 2

[0026] Figure 4 A virtual studio system with a three-to-three structure is shown, and its working process is basically the same as that of a two-to-two structure, except that there is one more camera and one channel, and it is necessary to switch the foreground images collected by the three cameras to three videos The motion parameters of the three cameras are sent to the three data switches, and other processing procedures are roughly the same as those in Embodiment 1, and will not be repeated here.

Embodiment 3

[0028] Figure 5 A virtual studio system with a three-to-two structure is shown, that is, three cameras correspond to two channels. Compared with the three-to-three structure, the virtual studio system with this structure saves hardware resources because two cameras share one channel. When one graphics workstation fails, the three cameras can still function normally. You can preview in advance when switching between a camera that shares a channel and a camera that uses a channel independently; but when switching between two cameras that share a channel, since there is only one monitor, it can only be switched blindly, thus It affects the quality of program broadcasting, so this structure is more suitable for non-live broadcasting of TV stations with less funds.

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Abstract

The invention discloses a virtual studio system with a multiple-to-multiple structure, which belongs to the technical field of virtual studio systems of television stations. The prior virtual studio system has a one-to-one structure and a multiple-to-one structure. In the one-to-one structure, if one graphic workstation fails, the other graphic workstation only has one camera position, thereby bringing inconvenience to program production. The multiple-to-one structure is not safe enough for live broadcast; and the broadcast is affected because once the graphic workstation fails. The system adopts the multiple-to-multiple structure; and multiple cameras correspond to multiple channels, namely each camera is communicated with at least two keying synthesizers, and a sensor corresponding to each camera is communicated with at least two graphic workstations through an encoding box. When one graphic workstation fails, all the cameras can work normally so as to improve the efficiency of program production and the safety of the broadcast.

Description

technical field [0001] The invention belongs to the technical field of a virtual studio system of a television station, and in particular relates to a virtual studio system with a many-to-many structure. Background technique [0002] The virtual studio system is a new TV program production system combining computer technology and chroma key technology. It uses the traditional chroma key technology, but breaks through the limitations of the traditional chroma key system and eliminates the problem that the camera cannot move synchronously with the background. The Achilles' heel is that real actors can go deep into the virtual three-dimensional scene and interact with the virtual objects in it in real time. The system is mainly composed of three subsystems: tracking subsystem, graphics rendering subsystem, and synthesis subsystem. The tracking subsystem is mainly composed of sensors and encoding boxes. The graphics rendering subsystem is mainly composed of graphics workstations...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/262H04N5/268H04N5/272
Inventor 马菲莹李涛
Owner CHINA DIGITAL VIDEO BEIJING