METHOD AND APPARATUS FOR DETERMINING ENCODING MODE OF VIDEO IMAGE, METHOD AND APPARATUS FOR ENCODING/DECODING VIDEO IMAGE USING THE SAME AND RECORDING MEDIUM STORING PROGRAM FOR PERFORMING THE METHOD THEREOF

摘要

A method and an apparatus for determining encoding mode of video image, method and an apparatus for encoding/decoding video image using the same and a recording medium storing program for performing the method thereof are provided to improve an inefficiency of a coding due to a duplication of motion information between neighboring frames by sharing the corresponding macroblock motion information or residual component information. A detector(202) detects a macroblock corresponding to a current macroblock for encoding among macroblocks of the reference frame already encoded. A first encoding efficiency calculating unit(204) calculates a first encoding efficiency value according to an encoding mode of the searched corresponding macroblock. A second coding efficiency calculating unit(206) calculates an encoding efficiency value of encoding motion information and residual element of the current macroblock. An encoding mode selecting unit(208) compares the encoding efficiency values delivered from the first encoding efficiency calculating unit and the second encoding efficiency calculating unit, and selects an optimal encoding mode from either the corresponding macroblock encoding mode or the current macroblock encoding mode.