基于子块运动估计补偿的视频误码块掩饰  

Error Concealment Based on Sub-Block Motion Estimation and Compensation

作　　者：李应兴[1] 

机构地区：[1]甘肃兰州西北民族大学榆中校区计算机科学与信息工程学院(榆中校区)

出　　处：《微计算机信息》2006年第12X期299-300,227,共3页Control & Automation

基　　金：科技部科研院所社会公益基金资助(2005DIB6J174)

摘　　要：视频数据在传输过程中存在着信道误码或丢包等现象,为了达到提高视频误码掩饰的目的,可利用子块运动估计方法,预测出在时间方向上的相关信息,通过运动补偿进行误码掩饰,同时为了消除子块补偿的边缘效应,进一步利用重叠块运动补偿方法以提高掩饰效果。When compressed video is transmitted over practical communication channels, there are bits error or packets lossy. In order to improve the image quality of decoding, error concealment in the decoding side ＇is necessary. In this paper, the temporal correlation is obtained by the motion estimation on the corneous regions that nearest the damaged sub-blocks. And then, the overlapped motion compensation is employed to further improve the error concealment. The scheme is also used to conceal the error of the inter frame.

关 键 词：运动估计 重叠块运动补偿 错误掩饰 

分 类 号：TN919.8[电子电信—通信与信息系统]