METHOD OF PERFORMING HYBRID MULTI-HYPOTHESIS PREDICTION IN MOVING PICTURE ENCODING BY ENCODING UNIT, AND RELATED DEVICE

PROBLEM TO BE SOLVED: To perform hybrid multi-hypothesis prediction in moving picture encoding by an encoding unit.SOLUTION: The method includes the steps of: processing a plurality of sub-encoding units; deriving motion vectors by some of sub-encoding units; and performing multi-hypothesis motion prediction by specific sub-encoding units as some of the sub-encoding units according to the plurality of motion vectors. The step of deriving the motion vectors further includes a step of deriving a plurality of motion vectors for multi-hypothesis motion compensation prediction by at least one of other sub-encoding units and encoding units, and a step of performing the multi-hypothesis compensation prediction further includes a step of using, as a predicted pixel value of the specified sub-encoding unit, a linear combination of a plurality of pixel values derived from the plurality of motion vectors.