%0 Journal Article
%T A Basic-unit Size Based Adaptive Rate Control Algorithm<br>基于单元尺度的自适应码率控制算法
%A DENG Qin-geng
%A GAO Xin-bo
%A LU Wen
%A <br>邓勤耕
%A 高新波
%A 路文
%J 中国图象图形学报
%D 2008
%I 
%X With the rapid development of information technology,compress coding has become a heated topic in the field of multimedia storage and transmission.Aiming at the coding efficiency of video compression,ITU-T and ISO/IEC jointly developed a new video coding standard named H.264/AVC in 2003.In order to transmit video efficiently on certain bandwidth,the rate fluctuation should be controlled to make it as close to the target bandwidth as possible.Although rate-control is not a part of the standard,it has been playing an important role in the standard all the time.For this purpose,on the basis of JVT-G012 algorithm,a new rate-control algorithm based on Spatial-Temporal Gradient Scale(STGS) image is presented for H.264/AVC coding to select the size of basic-unit adaptively.The rate fluctuation resulted from the proposed algorithm is always close to the best case of JVT-G012 algorithm.Moreover,for the low computational complexity,the proposed algorithm is easy to implement in real time applications.
%K H
%K 264/AVC
%K Rate-Control
%K G012
%K STGS image<br>H.264/AVC
%K 码率控制
%K G012
%K STGS图
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=502E981F81891E44F55FF02DC81DE134&yid=67289AFF6305E306&vid=FC0714F8D2EB605D&iid=708DD6B15D2464E8&sid=7361423B3D179EDD&eid=E76352A43E934A0F&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=10