Abstract: The tree structure quantification suits the wavelet image coding but doesn't suit the video coding.By using entropy coding principle,the authors put forward the video coding algorithm based on block segmentation and context model,which firstly compensates the initial sequence for the residua of each frame and then carries out the normal coding.Results show that the visual quality,performance,and coding efficiency of the new algorithm are superior to those of the traditional video coding algorithm.

Key words: block segmentation, context model, coding efficiency, coding algorithm, residual compensation