视频编码中的运动估计算法研究  

Study of Motion Estimation Algorithm in Video Encoding

作　　者：贺学剑[1] 

机构地区：[1]河南科技大学林业职业学院,河南洛阳471002

出　　处：《洛阳理工学院学报（自然科学版）》2008年第2期71-76,共6页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

摘　　要：在多媒体信息中,视频信息是一种比较特殊的媒体,数据量大,信息丰富。视频数据的表达、组织、存储和传输都有很大难度。帧间预测编码可以用来消除视频序列中大量的时间和空间冗余,由此压缩视频序列。运动估计耗用整个编码器编码时间80%左右,成为最耗时的部分。本文分析视频压缩的基本原理,论述运动估计的特点,重点是视频编码中的运动估计算法研究以及比较各种运动估计算法的优劣。Video is a special medium of multimedia which contains a mass of data and plenty of information. However, difficulties exist in the expression, organization, store and transfer of the video data. Interframe predictive coding can be used to eliminate the large amount of temporal and spatial redundancy that exists in video sequences and helps in compressing them. Motion estimation which becomes the maximum time consumption can consume 80% of the total encoding time of the codec. The paper gives the basic principles analysis of the video compression and the characteristics description of motion estimation, motion esti and puts the emphasis on the motion estimation algorithms study of video encoding, and the comparisons of several marion algorithms.

关 键 词：帧间预测编码 运动估计 多分辨率 

分 类 号：TP301[自动化与计算机技术—计算机系统结构]