对CCITT新H．261建议编解码器的剖析与讨论

ANALYSIS AND DISCUSSIONS ON THE CODEC OF CCITT H.261 RECOMMENDATION

电视会议及可视电话是正在兴起的多媒体通信业务的重要视听业务，本文依照ＣＣＩＴＴ新发布的Ｈ．２６１建议——“ｐ×６４ｋｂ／ｓ速率声视业务视频编解码器”，对图象信源编码器和视频复合编码器主要部分的功能、标准和内涵进行了描述，并对其中不易理解或需待进一步探讨的技术问题阐明了作者的认识。

Videoconference and videophone are important audiovisual services,of the multi-media communication service developed recently.According to a P ×64kb/s . Audio visual Codec,the CCITT(TSS) H. 261 Recommendation newly published, this paper gives a discription of some important functions,standards and connotations for image source encoderand video combination encoder,and presents the author' s opinions on some technical problems which are not understandable or need to be further discussed.