%0 Journal Article
%T A Fast Variable-block-size Motion Estimation Algorithm for H. 264<br>一种基于H.264的可变块快速运动估计算法
%A CHEN Chun
%A YANG Zhi
%A BU Jia-jun
%A MO Lin-jian
%A <br>陈纯
%A 杨智
%A 卜佳俊
%A 莫林剑
%J 中国图象图形学报
%D 2007
%I 
%X H.264,the latest video coding standard,achieves significant improvement in coding efficiency compared with previous standards.The high coding efficiency is based on some new techniques which also lead to high computational-complexity.H.264 uses variable-block-size motion estimation,which is the most time-consuming module.In this paper,we propose a fast variable-block-size motion estimation algorithm for H.264.The algorithm is based on three schemes: stationary block prediction,predictive search for non-stationary blocks and adaptive refinement search in merging process.Experimental results show that our algorithm can reduce the computational-complexity to 3% of fast full search motion estimation algorithm,with negligible PSNR loss and bit rate increase.
%K H
%K 264<br>视频编码
%K 运动估计
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=4FCCCCE422C849DB&yid=A732AF04DDA03BB3&vid=59906B3B2830C2C5&iid=0B39A22176CE99FB&sid=4E6F5C60B72D9B1C&eid=44A4891E33BFF455&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=2&reference_num=9