APPARATUS FOR ESTIMATING MOTION FOR H.264/AVC ENCODER WITH HIGH PERFORMANCE AND METHOD THEREOF

摘要

The present invention relates to an apparatus for estimating motions for H.264/AVC encoder with high performance which can minimize damages to the images by detecting median and directional nature of movement vectors of adjacent macroblocks when estimating motions, estimating initial searching points, and reducing computational complexity; and can reduce the memory size when performing hardware, and to a method for estimating motions for H.264/AVC encoder. The apparatus for estimating motions for H.264/AVC encoder with high performance comprises: a motion estimation control unit which computates mvp from motion vectors of three adjacent macroblocks for current macroblock in order to set up an initial searching point; an integer pel motion estimation unit which produces the integer pel motion vectors for current macroblock using the initial searching point; and a fractional pel motion estimation unit which produces fractional motion vectors for current macroblock using pixels of reference frame corresponding to the integer motion vector produced from the integer motion estimation unit. [Reference numerals] (100) Motion estimation control unit; (200) Integer pel motion estimation unit; (300) Fractional pel motion estimation unit; (400) Motion vector ram