视频通讯系统中的错误隐藏技术

Error Concealment in Video Communication

基于错误隐藏的概念 ,总结分析了各种视频标准中常用的错误隐藏技术 .在此基础之上 ,将一些错误隐藏技术应用于本课题组研制开发的 MPEG- 1/ 2视频监控系统中 ,在编码端加入了码流重同步技术 ,在解码端实现了一种自适应的错误隐藏算法 ,使该系统的鲁棒性和稳定性有很大提高 ,而且和其他技术相比 ,这些算法并没有使系统增加过多的负担 。

In the base of the concept of error concealment ,summarizes and analyzes the methods of error concealment in the video standards.Using the methods mentioned above,we realize a mpeg 1/2 digital video surveillance system with error concealment ,add resynchronizations in the coder and a self adaptive error concealment method in the decoder.The Robustness of the system is greatly improved,what's more,the methods we use only add a few payloads to the systyem.In practice the system works well.