中文摘要：

视频通信中压缩码流在信道传输时,由于信道不理想等原因,容易发生数据包的损坏或者丢失,为了对抗信道差错提高误码环境下的视频质量,提出一种基于H.264后处理的边缘检测和多方向插值的空域错误隐藏方法,针对帧内编码图像,根据图像边界信息选择多方向插值的方法进行错误隐藏。实验结果表明,该方法在具有边界的图像区域,有效地提高了错误图像的隐藏效果且算法复杂度较低,验证了该方法的可行性,对于工程应用有一定的参考价值。

英文摘要：

Compressed streams in the video communication channel transmission,for reasons like the channel is not ideal and so on,are prone to damage or loss of data packets.In order to combat channel error to improve video quality,a spatial error concealment method for intra-coded picture is proposed on the basis of post-processing H.264 edge detection and multi-directional interpolation,which is in accordance with the direction of the image boundary information to select multiple error concealment method of interpolation.The experimental results show that for the image with a border region,this approach effectively improves the hidden effects of error images with a less complex algorithm.The feasibility of the method is verified,which provides a certain reference value for engineering applications.