H.263甚低码率视频编码标准的码率控制方法  

Method for controlling the bit rate in video encoding standard H.263 with very low bit rate

作　　者：施福忠[1] 周良柱[1] 

机构地区：[1]国防科技大学电子工程学院404教研室,湖南长沙410073

出　　处：《电视技术》2000年第7期7-8,23,共3页Video Engineering

摘　　要：主要提出ITU组织的H.263甚低码率视频压缩编码标准输出码率的控制方法。着重分析了一种通过调整宏块量化器的量化参数来控制H.263编码器输出码率的方法，它能满足在PSTN网上低时延缓冲的码率输出要求。This paper provides one kind of rate-controlling methods for low-rate vide0 compression encoding in H.263 Reconunendation of ITU-T, emphatically analyzes rate-controlling method by updating Quantizer's parameters(QP) in the macro blocks, which can not only get a desired output encoding very low bit-rate complying to H.263 Reconunendation, but also satisfy with the requirement of decoder output-bther sizes in the PSTN.

关 键 词：H.263标准 视频压缩 码率控制 宏块层 量化器 

分 类 号：TN919.8[电子电信—通信与信息系统]