%0 Journal Article
%T A Fast Block-matching Motion Estimation Algorithm<br>一种块匹配的快速运动估计算法
%A ZOU Xiao-chun
%A FENG Yan
%A ZHAO Xin-bo
%A <br>邹晓春
%A 冯燕
%A 赵歆波
%J 中国图象图形学报
%D 2006
%I 
%X A new fast and efficient search algorithm for block motion estimation is presented in this paper, The new algorithm can reduce the computational complexity of the fast motion estimation and improve the efficiency of video compression code. The algorithm accepts a multi-step search strategy, using motion vectors of the adjacent block to predict starting search point, using gradient descent method to optimize the search to reduce computation resource. For the area where optimal points located, a Diamond-Square Mask was used to carry out the refined search. Experimental results show that the proposed algorithm can reduce computational complexity efficiently, and at the same time while, ensuring the search accuracy.
%K video coding
%K motion estimation
%K block-matching<br>视频编码
%K 运动估计
%K 块匹配
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=AA4679B0FB1646A6&yid=37904DC365DD7266&vid=708DD6B15D2464E8&iid=DF92D298D3FF1E6E&sid=502AE9EE93CAADD7&eid=72D13CE6C162BDF4&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=5