Method and apparatus for compensating errors in a transmitted video signal

摘要

An error concealment method first detects a lost block in a reconstructed current frame and then extracts pixel values and motion vectors corresponding to neighboring blocks of the lost block. Thereafter, a motion variance of the motion vectors corresponding to the neighboring blocks of the lost block is determined and compared with predetermined threshold values. Subsequently, according to the result of the above comparison process, the method produces a block substituting the lost block based on the motion vectors of the neighboring blocks or pixel values of the neighboring blocks.