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Television live broadcast key filling signal broadcasting method and system

A TV live broadcast and signal technology, which is applied to the components of the TV system, TV, color TV, etc., to achieve the effect of shortening the length of error

Active Publication Date: 2021-08-03
广西广播电视台 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, under the current technical conditions, there is no system or method that can effectively process the wrong key filling signal that occurs in live TV without the viewer noticing it

Method used

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  • Television live broadcast key filling signal broadcasting method and system
  • Television live broadcast key filling signal broadcasting method and system

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Embodiment Construction

[0034] The specific implementations provided by the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0035] A method and system for broadcasting key-filling signals in live TV broadcasting in this embodiment are mainly applied to synchronous broadcasting of key-filling signal content during live broadcasting in TV studios. According to the characteristics of live broadcast in TV studios, the content of the key filling signal is often broadcast according to the content of the program, so some content is produced in advance, and some is temporarily produced on site, and different durations are broadcast according to different content in specific time periods. In order to ensure the safety of broadcasting, two key signal generators (including key ...

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Abstract

The invention discloses a television live broadcast key filling signal broadcasting method and system. A mode of carrying out advanced processing based on a video image comparison result and a delay mechanism is adopted, and the content error duration of the key filling signal caused by various reasons is shortened to the greatest extent. Through the method and the system, the full-automatic key up and down operation of the television live broadcast key filling signal is realized, the wrong key filling signal content in the live broadcast signal can be effectively eliminated, the correct key filling signal content can be played, only the wrong key filling signal is processed, the original video signal source and other key filling signals are not influenced, and for audiences, the error key filling signals never appear, so that the watching effect of the audiences is not influenced at all while the safe broadcasting of the television live broadcast is ensured.

Description

technical field [0001] This application relates to the technical field of broadcasting and television, in particular to television production and broadcasting. Background technique [0002] Live TV key filling signal refers to various video signal input sources that are inserted online or synthesized into the original background TV signal source through keying technology in live TV, including subtitles, corner logos, station logos, scrolling, advertisements, and small windows. Wait. Live TV key filling signals can be added in the studio or TV broadcast control center according to its application scenarios, such as subtitles, subtitles, advertisements, small windows, etc. are added in the studio production and broadcast process, and station logos and scrolling are added in the TV broadcast control center. At present, whether at home or abroad, the insertion of all live TV key-fill signals is realized on the director switcher (including the studio director switcher and the em...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/265H04N21/24H04N21/262H04N21/426H04N21/431H04N21/4425
CPCH04N5/265H04N21/2404H04N21/2625H04N21/42607H04N21/4318H04N21/4425
Inventor 古林海陈华兴张国振陈冠霖
Owner 广西广播电视台
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