APPARATUS AND METHOD FOR CONTROLLING SKIP OF MOTION COMPENSATION USING CHARACTERISTIC OF MOTION VECTOR IN IMAGE DECODER

摘要

An apparatus for controlling the skip of motion compensation by using a motion vector characteristic in a video decoder and a method therefor are provided to minimize a data transmission time and system power consumption by determining whether to activate a motion compensation device according to the motion vector characteristic and skipping unnecessary motion compensation. A partition information input unit(111) receives partition information including a motion vector for respective macroblock partitions which are image decoding objects. A preprocessing unit(112) calculates a reference picture region indicated by a corresponding motion vector by using the partition information per the macroblock partition, and confirms whether the corresponding motion vector indicates an integral pixel. A skip control unit(113) provides pixel values of a motion compensation reference picture region based on a basic reference picture region to a motion compensation device, or skips the motion compensation device and provides the pixel values to a picture reconfiguring device according to whether the corresponding motion vector indicates the integral pixel.