MOVING IMAGE ENCODING APPARATUS, MOVING IMAGE ENCODING METHOD, MOVING IMAGE ENCODING PROGRAM, MOVING IMAGE DECODING APPARATUS, MOVING IMAGE DECODING METHOD, AND MOVING IMAGE DECODING PROGRAM

摘要

A coupled motion information candidate list generating unit (1000) calculates, as candidates of the motion information of a block to be encoded, the motion information of a plurality of encoded adjacent blocks, which are adjacent to the block to be encoded, and generates a motion information candidate list. If the motion information included in the generated candidate list includes any two pieces of motion information that have the same prediction direction and the same motion vector value as each other, then a coupled motion information candidate list deleting unit (1001) deletes one of the two pieces of motion information from the candidate list. If a coupled prediction mode is selected, an encoding unit uses the motion information of a designated reference block, which is acquired from the candidate list processed by the coupled motion information candidate list deleting unit (1001), to encode the block to be encoded and also encode an index indicating the designated reference block.