METHOD AND APPARATUS FOR FAST MOTION ESTIMATION AND VIDEO ENCODING APPARATUS USING THE SAME

摘要

PURPOSE: A high-speed motion estimation method and apparatus, and a video encoding apparatus using the same are provided to considerably reduce computational complexity without generating a great motion estimation error. CONSTITUTION: A candidate vector generator(130) generates a plurality of candidate motion vectors with the motion vectors of blocks adjacent to a present block within an input frame. An initial value decision unit(140) selects one of the plurality of candidate motion vectors as the prediction motion vector of the present block. A motion estimation unit(150) uses the selected prediction motion vector as a search initial value. The motion estimation unit obtains the motion vector of the present block within a search area on a reference frame.