高效的H.264空域错误隐藏算法

在视频传输过程中视频质量会受到受损宏块的影响而导致视频质量下降,针对此问题并兼顾错误隐藏效果和算法复杂度,提出了一种高效的空间域错误隐藏算法.首先根据设定的阈值判断当前帧中出错宏块是否满足时域替代条件,若满足就利用前一帧同一位置宏块替代出错宏块,否则就对出错宏块进行基于边缘检测的方向性内插.实验结果表明,该算法与JM测试模型中的方法相比,具有较好的错误隐藏效果且没有增加运算量.

Efficient Spatial Error Concealment Algorithm for H.264

For the degradation of the video quality caused by the damaged macroblocks in video transmission,and taking into account the error concealment effect and computational complexity,this paper presents an efficient spatial error concealment algorithm.Based on the predefined threshold,if the erroneous macroblock satisfies the condition of temporal replacement error concealment is determined first,the erroneous macroblock in the current frame is replaced by the corresponding position macroblock in the previous f...