%0 Journal Article
%T Efficient adaptive motion estimation algorithm based on motion intensity<br>利用运动强度判据的高效自适应运动估计算法
%A Guo Xiaomin
%A Yao Rui
%A Liu Zhiyue
%A Wang Youren
%A <br>郭晓珉
%A 姚睿
%A 刘智跃
%A 王友仁
%J 中国图象图形学报
%D 2012
%I 
%X In order to reduce the complexity of motion estimation and improve the efficiency of the video encoder,an adaptive motion estimation search algorithm based on motion intensity is proposed.Motion intensity reflects the intensity of motion between adjacent frames.By defining the concept of motion intensity,the movement of the next frame is predicted based on the measured intensity information of the current frame,and a different motion search algorithm is selected adaptively.If the motion intensity of the current frame is greater than the threshold,the UMHexagonS search algorithm is chosen,otherwise the improved hexagon search algorithm is chosen.Simulation results show that the coding efficiency is improved significantly,while the image quality and compression performance change little.In addition,the threshold of motion intensity in the algorithm is adjustable,thus the demands of different encoding can be met by changing the threshold.
%K motion estimation
%K motion intensity
%K adaptive
%K video encoder<br>运动估计
%K 运动强度
%K 自适应
%K 视频编码
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=F5538A1A32709A307A931B5E4211CFB5&yid=99E9153A83D4CB11&vid=BCA2697F357F2001&iid=E158A972A605785F&sid=9B1D77939DDB4B89&eid=B99A53AADE50D922&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=11