Graphics generation system for sports competitions

Abstract

The invention discloses a graphics generation system for sports competitions, which comprises a first graphics workstation, a second graphics workstation, a broadcasting control module and a chroma keyer. The broadcasting control module comprises a template association sub-module and a broadcasting control information generation sub-module, wherein the template association sub-module is connected with the second graphics workstation, and is used for establishing association relationships between replacement units and corresponding live broadcast display data in a template to obtain three-dimensional graphics display data configured with broadcasting attributes; and the broadcasting control information generation sub-module is used for generating broadcasting control information corresponding to the three-dimensional graphics display data when broadcasting is controlled. The chroma keyer is connected with the first graphics workstation, and is used for performing synthetic output by taking a hybrid output signal as a chroma keying background and taking a corresponding foreground signal as a chroma keying foreground. The graphics generation system can improve control flexibility, rendering efficiency and live broadcasting security.

Description

technical field [0001] The invention relates to the technical field of television program production, in particular to a graphics generation system for sports competitions. Background technique [0002] The virtual sports system is developed from the virtual studio technology, which belongs to a very important branch of the virtual studio technology. Virtual studio is a unique TV program production technology developed in recent years. Its essence is to digitally synthesize the virtual 3D model made by the computer and the moving images of the objects captured by the camera in real time, so that the object images and the virtual background can change synchronously, so as to achieve the fusion of the two to obtain a perfect composite picture. The virtual studio technology is based on the traditional chroma keying technology, making full use of computer 3D graphics technology and video synthesis technology, according to the position and parameters of the camera, so that the p...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, chroma key synthesis usually simply superimposes the foreground image collected by the camera and the 3D virtual scene generated by the computer, that is, the display of the synthesized picture only has two layers of the foreground image and the 3D scene. However, in the live broadcast of the virtual sports system In the screen, it is often necessary to place a virtual 3D scene between two layers of foreground images. For example, it needs to be displayed that athletes and referees are on virtual objects, and these virtual objects are on grass or water. The existing technology is difficult to achieve the effect of this combination of virtual and real

[0005] However, in practice, a situation that may arise is that during a live broadcast of a game, on the one hand, it is necessary to render the 3D scene for broadcast, and on the other hand, it is necessary to calculate the real-time 3D data of the current offside line and other items that require manual intervention, which affects the rendering quality. Efficiency and safety of live streaming

[0006] In addition, during the live broadcast of the event, relevant technical personnel are often required to modify the corresponding display templates for different games, which not only makes the operation cumbersome, but may also affect the live broadcast due to the misoperation of the technical personnel.

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