基于MPEG-4的FGS视频压缩技术的研究  

Research of FGS Video Compression Technology Based on MPEG-4

作　　者：龚新宁[1] 张超[1] 龚耀宁[1] 

机构地区：[1]华中科技大学电子与信息工程系,武汉430074

出　　处：《计算机与数字工程》2004年第3期56-58,共3页Computer & Digital Engineering

摘　　要：精细可伸缩性视频编码FGS(FineGranularScalable)是MPEG - 4标准的视频化框架中的关键性的编码技术。FGS编码方法生成两个视频流 :基本层码流和增强层码流。基本层码流是必须传输的 ,并且码率低 ;增强层码流则根据带宽的实际情况来决定传多少 ,甚至不传 。Fine Granularity Scalability(FGS) video coding is a key technique in MPEG-4 streaming video profile.The method of FGS video coding results in two types of video streaming:base layer bitstream and enhancement layer bitstream.The former has a lower code stream and it must be transmitted.The transmission of the latter can be based on the condition of the net bandwidth.This scalable coding and transmitting method lead to a better robustness of video stream.

关 键 词：视频编码 位平面 精细的可伸缩性视频编码 

分 类 号：TP911.73[自动化与计算机技术]