Entire-Frame Error Concealment in H.264 Using Motion Tracking and Adaptive Block Sizes
Since H.264 provides high compression efficiency, a coded frame has a small size and can be encapsulated into a single network packet. Therefore, the loss of a single packet results in the loss of an entire frame, and then the error propagates to successive frames. In this paper, we propose a novel entireframe error concealment method for H.264. First, the proposed method extrapolates motion vectors of 8x8 blocks and 4x4 blocks from neighboring frames onto the lost frame by motion tracking. Then, an appropriate conceal size of 4x4 or 8x8 is selected according to the overlapping area. Finally, the extrapolated motion vectors are refined by searching the best-match motion vector among the neighboring motion vectors. Experimental results show that the proposed method outperforms the conventional methods. This method is also applicable to the loss of non-entire frame.
error concealment error resilience H.264,motion tracking
Jing Wu Jing Zhang
Institute of Biomedical and Health Engineering,Shenzhen Institutes of Advanced Technology,Chinese Ac Key Laboratory for Biomedical informatics and Health Engineering,Chinese Academy of Sciences,Shenzhe
国际会议
The IET 2nd International Conference on Wireless,Mobile & Multimedia Networks(第二届IET国际无线移动多媒体网络会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）