多纹理方向空域错误隐藏算法

摘要

The compressed video data is easily disturbed or lost while transmitting in error prone channel, a new spatial error concealment scheme based on texture direction is proposed under packet-loss channel, we analyze some error concealment algorithms of H. 264 video coding standards in details and points out problems of each algorithm. After that we proposed our refined algorithm in spatial area-multi-texture interpolation algorithm. Experimental results showed that our algorithm can not only achieve good directional interpolation concealment results in both visual effect and PSNR value but also can avoid fake edges.%视频压缩码流在差错信道中传输时容易发生损坏或丢失,为提高视频压缩码流在Internet网络丢包信道中传输的抗误码性能,针对现有空域错误隐藏算法的不足,提出了改进算法-"多纹理方向插值算法".通过仿真实验表明,本文提出的算法不仅提高了方向插值的精确性,也避免了虚假边缘的产生,使隐藏图像的主客观质量有较大的提高.