VIDEO ENCODING/DECODING APPARATUS AND PIXEL-BASED ADAPTIVE OVERLAPPED BLOCK MOTION COMPENSATION METHOD AND APPARATUS

摘要

PURPOSE: A moving image encoder/decoding apparatus and the pixel-based OBMC apparatus thereof and method OBMC is proceed without the additional information of the pixel by pixel to 'the form which is applicable in the existing video compression process to the block oriented, and the block boundary unit and pixel by pixel. CONSTITUTION: The difference of the block which the difference output unit(212) is motion-compensated present, the pixel value between the movement compensation block is obtained. The standards residual pixel output unit(213) obtains the first residual pixel in which the absolute value of the pixel value most smalls and the second residual pixel in which the absolute value of the pixel value about pixels exceeding the standard value. The information recorder(214) stores the first and the second residual pixel, the big value to the first information. In case the absolute value of the inputted residual pixel as described above bigger than the value of the first information, the adaptation OBMC(overlapped block motion compensator) part(215) is adaptively proceed the nested block motion compensation and block motion compensation.