几种典型图象编码标准及其Qos评估  

Evaluation Several Typical Video Coding Standards and Related Qos Issues

作　　者：邱林海[1] 周敬利[1] 余胜生[1] 

机构地区：[1]华中理工大学计算机系,武汉430074

出　　处：《计算机工程与应用》1999年第8期20-24,共5页Computer Engineering and Applications

基　　金：国防预研基金

摘　　要：多媒体通讯系统最终目标是满足用户各种各样的Qos要求。文章针对几种典型的图象编码标准，如ITU的H．261、H．263以及ISO／IEC的MPEG1、MPEG2等，从Qos的角度，比较了它们不同的比特流结构和编码方案，主要包括算法、压缩比特流结构以及性能测试等，最后给出了实验结果和分析。这些比较和分析有助于系统设计人员选择适当编码标准，以便满足用户和系统特定的Qos要求。The goal of multimedia communication system is tO meet various Qos reqUirments fmm the end users.This Paper compes and analyzes several typical video compression standards, especially for their different QosParameters and various Qos implementation scheme including algorithm, bitstream stl'Ucture and performance test,such as ITU H.261, H.263 and ISO/IEC MPEGI, MPEG2. Finally experimental resuh and analysis were given inthis paper. These compallson and analysis ban contribute system designer tO select suitable Qos parameters and agood coding standanl in order to meet Qos requirments Of the end uses and the system.

关 键 词：图象编码标准 QOS分析 多媒体通信 MPEG 

分 类 号：TN919.8[电子电信—通信与信息系统] TP393[电子电信—信息与通信工程]