计算机工程2011，Vol.37Issue(12)：251-254,4.DOI:10.3969/j.issn.1000-3428.2011.12.085
一种视频转码快速运动估计算法
Fast Motion Estimation Algorithm for Video Transcoding
摘要
Abstract
Fast motion estimation algorithm based on the inputted stream information is proposed for the down-sizing video transcoding.The predicted motion vector is synthesized by using the motion vectors and coefficients of the inputted stream.The conformity of the motion vectors in the related region is analyzed.The search strategy of motion estimation is adjusted according to the predicted motion vector, the conformity and the frame activity.Experimental results show that, this algorithm reduces above 20％ of encoder time as compared to the diamond search algorithm,while it maintains a reasonable video quality.It also achieves higher performance and better quality than AMVR-DIM algorithm.关键词
视频转码/运动估计/运动矢量合成/搜索策略/图像质量Key words
video transcoding/ motion estimation/ Motion.Vector(MV) composition/ search strategy/ image quality分类
信息技术与安全科学引用本文复制引用
王艺,陈耀武..一种视频转码快速运动估计算法[J].计算机工程,2011,37(12):251-254,4.基金项目
浙江省重大科技攻关计划基金资助项目(2009C110 35) （2009C110 35）
