VIDEO ENCODING AND DECODING APPARATUS AND METHOD, AND COMPUTER READABLE RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a video encoding and decoding apparatus and method.

SOLUTION: A video encoding and decoding apparatus includes an encoding unit and a decoding unit. The encoding unit adjusts at least one weight value adaptively to the number of bits expressing each pixel of a current image, predicts a pixel value of a notice block by performing an operation on a pixel value of at least one block having a pixel value similar to the pixel value of the notice block among blocks included in a previous image and the at least one adjusted weight value, and encodes the pixel value of the notice block using the predicted pixel value. The decoding unit adjusts the at least one weight value adaptively to the number of bits, restores the predicted pixel value of the notice block by performing an operation on the pixel value of the at least one block having the pixel value similar to the pixel value of the notice block among blocks included in the restored previous image and the at least one adjusted weight value, and decodes the pixel value of the notice block using the restored pixel value.

COPYRIGHT: (C)2011,JPO&INPIT