一种基于模糊聚类的频域视频差错掩盖方法

Error Concealment Based on Fuzzy Classify Frequency Domain

当视频传输中出现不能恢复的误码或丢包时,在接收端就要使用差错掩盖技术对损坏的视频进行掩藏。论文提出一种基于模糊聚类的频域多特征量软判决差错掩盖方法,提高了差错掩盖效果。论文提出的算法主要分两个步骤:首先通过选择特征量对丢失块的周围相邻的块进行聚类分析,然后根据相似块的分布情况对丢失块进行掩盖。

When bit errors occur during transmission and cannot be corrected by an error correction scheme,error concealmentis needed to mask damaged image at receiver.In this paper,a error concealment algorithm based on fuzzy classify method is presented,The algorithm includes two steps,first is classifing the blocks around the bad MB with fuzzy classify method,and then interpolating the bad block based on the distribution of the similar blocks.