一种新的运动矢量恢复算法用于视频传输中的错误隐藏

First IEEE Consumer Communications and Networking Conference, 2004. CCNC 2004. Pub Date : 2004-04-19 DOI:10.1109/CCNC.2004.1286934

Bo Yan, Kam-Wing Ng

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引用次数: 3

摘要

错误隐藏是视频传输中对抗信道错误的有效方法。在视频编码中，运动矢量(mv)对于缺失视频块的匹配非常重要。因此，如何恢复丢失的视频是视频通信中错误隐藏的一个重要问题。针对视频传输过程中高块损失率(BLR)和视频帧中边缘块的匹配问题，提出了一种选择性运动矢量匹配(SMVM) MV恢复算法。它结合缺失块的相邻像素的状态标志，构造新的MV集进行块匹配。实验结果表明，该方法在不同blr下的误差隐藏效果明显优于现有的其他MV恢复方法。

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A novel motion vector recovery algorithm for error concealment in video transmission

Error concealment is an effective method to combat channel errors for video transmission. In video coding, motion vectors (MVs) are highly significant for the matching of the missing video block. Thus, how to recover the lost MV is an important issue for error concealment in video communications. Concerning the high block loss ratio (BLR) during video transmission and the matching of edge blocks in video frames, we proposed a selective motion vector matching (SMVM) algorithm for MV 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 significantly outperforms other existing MV recovery methods for error concealment at different BLRs.

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First IEEE Consumer Communications and Networking Conference, 2004. CCNC 2004.

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