MOVING PICTURE CODING APPARATUS, MOVING PICTURE CODING METHOD, MOVING PICTURE CODING PROGRAM, AND MOVING PICTURE DECODING APPARATUS

摘要

An inter mode coding unit codes the information regarding the motion information of either one of a merge mode and a motion vector difference mode. A block size information coding unit codes the shape of the block on which the motion compensation prediction is performed. An evaluation inter mode setting unit sets the shape of the block, on which the motion compensation prediction is performed, then selects at least one of the merge mode and the motion vector difference mode, according to the shape thereof set. An inter mode determining unit determines an inter mode of the information regarding the motion information to be coded by the inter mode coding unit in the selectable inter mode.