VOD系统上传输MPEG-2的误码处理

Dealing with Errors in Transferring MPEG 2 over VOD

从误码修补和误码恢复两方面讨论了在点播视频（ＶＯＤ）系统上传输ＭＰＥＧ２ 的误码处理技术．在误码修补中论述了ＭＢｒｅｓｙｎ．的新方法，它考虑ＡＴＭ 的传输特点，对ＭＰＥＧ２ 略加改动，方法简单且能明显改善视频质量．误码恢复中，运用了交织编码技术，可提高ＶＯＤ系统的可靠传输．

Itwaspresented how to dealwith theerrorsin transferring MPEG 2 overasynchronoustransfer m ode (ATM) in video on dem and (VOD) system using two types of techniques——error resilience and error recovery. It is possible to significantly im prove the quality of video using a new error resilience approach, MB resynchronous, w hich hasa sim ple addition to thestandard ofMPEG 2. In errorrecovery, the coding technique using interleaving w as discussed. The reliable transfer protocol video is of m ost im portance recently.