COMPUTATION REDUCTION METHODE FOR H.264/AVC MOTION ESTIMATION

摘要

PURPOSE: A computation reduction method of H.264/AVC motion estimation is provided to adjust a search area during IME(Integer Motion Estimation) and take a partial cost calculating method during FME(Fraction Motion Estimation), thereby largely reducing a computation amount. CONSTITUTION: An integer motion estimation process comprises the following units. An initial search area is extracted from motion vectors of neighbor macro blocks. Distribution values of neighbor motion vectors are calculated in x and y directions. The size of an initial search window increases in the initial search area according to the calculated distribution values of the neighbor motion vectors.