基于边界分段匹配的空域视频错误隐藏算法

摘要

提出了一种基于边界分段匹配的空域视频错误隐藏算法对边缘进行估计,根据边缘点的分布及方向对边界进行分割,使用各分段在邻近区域内进行匹配填补,经过迭代各边界按一定策略向内填补最终完成错误隐藏.实验表明,该算法有效地保留了边缘信息,使恢复图像的主客观质量有较大的提高.%This paper proposed a new spatial error concealment method based on match of boundary subsection to reconstruct the missing block with the intact pixels surounding it. It first estimated edge of each block boundary. Then according to it,partitioned the boundaries into several subsections. To each subsection, searched the best match pixs in the vicinity of the subsection to recovery it. Accomphshed concealment by reconstructing each boundary repeatedly according to the suitable strategy. Experimental results showed that the algorithm can achieve good directional interpolation concealment results in both visual efect and PSNR.