A novel selective motion vector matching algorithm for error concealment in MPEG-4 video transmission over error-prone channels

被引：0
作者：
Yan, B [1 ]
Ng, KW [1 ]
机构：
[1] Chinese Univ Hong Kong, Dept Comp Sci & Engn, Hong Kong, Hong Kong, Peoples R China
来源：
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS | 2003年 / 49卷 / 04期
关键词：
MPEG-4; error concealment; boundary; matching algorithm; video transmission; error-prone channels;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The performance of MPEG-4 video transmission over error-prone channels is limited by the channel noise. Error concealment is an effective method to combat these channel errors. In MPEG-4 video coding, motion vectors (MVs) are highly significant for the matching of the missing video block. Thus how to recover the lost W is an important issue for error concealment in MPEG-4 video communications. Concerning the high block loss ratio (BLR) during video transmission and the matching of edge blocks in video frames, we propose the selective motion vector matching (SMVM) algorithm for W recovery. It incorporates the status flags of the neighboring pixels of the missing block and constructs new MV sets for block matching. Experimental results show that it is highly effective and significantly outperforms other existing MV recovery methods for error concealment at different BLRs(1).
引用
收藏
页码：1416 / 1423
页数：8
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