Method and apparatus for reducing the amount of computation of the video images motion estimation

摘要

A method and apparatus is used to reduce the unnecessary calculation of the video images motion estimation by identifying the all-zero block or zero-motion vector macroblock in advance. The method of computation reduction stops the motion estimation searching, referring to the condition of the absolute difference and the quantization parameter, and stops the following computation of the Discrete Cosine Transform and quantization. The reference critical value is set according to the motionless residue value of previous frame or the constant critical value to determine the zero-motion vector macroblock in the images.