Motion estimation is one of the key technologies of H.264 inter prediction encoding,It is rather im- portant to reduce the time of motion estimation for the process of encoding.This paper presents a improved fast search algorithm based on block sort.Image blocks are divided into blocks changing acutely,blocks changing mod- erately and blocks changing slowly according to quantity of motion.Then different search method to deal with differ- ent block is adopted.As to blocks changing acutely,we adopt double cro...
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