Method for encoding and decoding video signal

摘要

A method for encoding and decoding a video signal is provided. A video signal is encoded by weighting reference blocks or target blocks in the video signal based on adaptive weights defined on a macroblock by macroblock basis in prediction and update procedures, and such encoded video signal is decoded accordingly. Adaptive weights for macroblocks, appropriately defined to suit the macroblocks on a macroblock by macroblock basis, are used to perform the prediction and update procedures, thereby improving the compression efficiency of the video signal.