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Method for constructing virtual studio system with multiple-to-multiple structure

A technology of a virtual studio and a construction method, which is applied to the parts of the TV system, the parts of the color TV, the TV, etc. The effect of improving quality and efficiency

Inactive Publication Date: 2013-02-20
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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  • Method for constructing virtual studio system with multiple-to-multiple structure
  • Method for constructing virtual studio system with multiple-to-multiple structure
  • Method for constructing virtual studio system with multiple-to-multiple structure

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Experimental program
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Effect test

Embodiment 1

[0024] image 3 The connection mode and data flow direction of the two-to-two structure virtual studio system are shown. Two cameras correspond to two image processing 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 image processing channel is responsible for synthesizing the foreground of camera 2 Background image for Imaging and Graphics Workstation 2. The difference is that the foreground image collected by each camera is sent to all video switchers connected to it, and th...

Embodiment 2

[0028] Figure 4 A connection method and data flow direction of the three-to-three structure virtual studio system are shown. Its working principle is basically the same as that of the two-to-two structure, except that there is one more camera and one image processing channel, and the data collected by the three cameras need to be The foreground images are sent to the three video switches, and the motion parameters of the three cameras are sent to the three data switches. Other processing procedures are roughly the same as in Embodiment 1, and will not be repeated here.

Embodiment 3

[0030] Figure 5 The connection mode and data flow direction of the three-to-two structure virtual studio system are shown. Three cameras correspond to two image processing channels. Compared with the three-to-three structure, the virtual studio system with this structure saves hardware resources because two cameras share one image processing channel. When one graphics workstation fails, the three cameras can still function normally. You can preview in advance when switching between cameras that share one image processing channel and cameras that independently use one image processing channel; but when switching between two cameras that share one image processing channel, there is only one monitor, so It can only be cut blindly, which affects the quality of the program broadcast, 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 method for constructing 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 one-to-multiple 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 one-to-multiple structure is not safe enough for live broadcast, for once the graphic workstation fails, and the broadcast is affected. The method adopts the multiple-to-multiple structure; and multiple cameras correspond to multiple image processing 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 normallyso 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 television station virtual studio system, and in particular relates to a construction method of 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 g...

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