基于图像比对及键控技术的电视直播键填充信号播出系统设计  

Design of Key Filling Signal Broadcasting System for TV Live Broadcasting Based on Image Comparison and Keying Technology

作　　者：古林海 陈华兴 Gu Linhai;Chen Huaxing(Guangxi Radio and Television Station,Guangxi 530022,China)

机构地区：[1]广西广播电视台,广西530022

出　　处：《广播与电视技术》2023年第7期129-133,共5页Radio & TV Broadcast Engineering

摘　　要：本文从设计思路、工作原理和流程、系统功能等方面详细阐述了一种基于图像比对及键控技术的电视直播键填充信号播出系统。该系统采用基于图像比对结果及延时机制的超前处理模式,实现键填充信号播出自动化,最大程度上降低键填充信号内容的出错概率,并能对内容出错的键填充信号进行有效处理。In this paper,a key filling signal broadcasting system for TV live broadcast based on image comparison and keying technology is described in detail from the aspects of design idea,working principle and process,system function and so on.The system adopts the advanced processing mode based on image comparison results and delay mechanism to realize the automation of key filling signal broadcasting,reduce the error probability of key filling signal content to the greatest extent,and effectively process the key filling signal with wrong content.

关 键 词：键填充信号 图像比对 键控 播出 延时 

分 类 号：G22[文化科学]