Patent ID: 8532409

Claim:
An adaptive motion search range determining apparatus, comprising: an MVD (Motion Vector Difference) average/standard deviation calculation unit configured to calculate a value average and a standard deviation of MVDs of neighboring macroblocks of a current macroblock, wherein the MVDs are difference values between motion vectors of the neighboring macroblocks and a Motion Vector Predictor (MVP) and are stored sequentially in a frame memory, the Motion Vector Predictor (MVP) being a median of the motion vectors of the neighboring macroblocks; and a motion search range determination unit configured to determine a motion search range of the current macroblock using the value average and the standard deviation, wherein the neighboring macroblocks comprise a left macroblock, an upper middle macroblock, an upper left macroblock, and an upper right macroblock of a current image frame to which the current macroblock belongs, and a macroblock located at the same position as a position of the current macroblock in a previous image frame.