Abstract: In order to reduce the influence of transmission errors on the reconstructed image quality in decoder，a Context-based Inter Error Concealment（CIEC） algorithm for H.264 is proposed.Firstly，the edges at the missing block boundary are detected，which are further analyzed to estimate the mode of the lost macroblock，and then carry out temporal error concealment by using estimated mode.Experiments show that the missing block with unhomogeneous motion can be better recovered with the proposed algorithm.

摘要： 为了减小视频传输中的错误对解码端重建视频质量的影响，提出了一种使用于H.264的基于内容的自适应时域错误隐藏算法。该算法首先对受损块邻域进行边缘检测，通过对边缘信息的进一步分析来对受损块的宏块模式进行估计，然后根据估计的宏块模式对受损块进行重建。实验表明，该算法能更好地适应丢失块内存在运动目标的情形，差错隐藏效果明显。