摘要
H.264/AVC标准引入的灵活宏块排列机制可以显著改善解码重建视频的质量。为进一步增强在不可靠信道上传输视频的鲁棒性,提出了在运动向量搜索的率失真优化框架下,结合灵活宏块排列容错机制,对差错隐藏失真进行优化。实验结果表明该方法能有效地提高灵活宏块排列的容错性能。
Flexible Macroblock Ordering（FMO） feature of the H.264/AVC codec improves the decoded video quality remarkably.In order to further increase the robustness of the transmitted video over unreliable channels,distortion introduced by error concealment is taken into consideration under R-D optimized motion vector selection framework in the presence of FMO mechanism,this allows optimization of concealment distortion at the encoder.Experiment result is given to show the performance of the proposed method.
出处
《计算机工程与应用》
CSCD
北大核心
2006年第31期200-202,共3页
Computer Engineering and Applications
关键词
灵活宏块排列
差错隐藏
最佳运动向量搜索
Flexible Macroblock Ordering （FMO）
error concealment
optimal motion vector selection
