| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that compression of encoding information and reduction of a whole code amount are required in a conventional image encoding system using motion compensation prediction.SOLUTION: A prediction motion vector candidate generation section 121 predicts motion vector candidates from motion vectors of an encoded block adjacent to an encoding object block in the same picture as the encoding object block, generates the candidates of a plurality of prediction motion vectors and registers them in a prediction motion vector candidate list. A limiting section for the number of prediction motion vector candidates 124 limits the number of candidates of the prediction motion vectors, which are registered in the prediction motion vector candidate list, to the maximum number of candidates, which corresponds to a size of the prediction block. A prediction motion vector selecting section 126 selects the prediction motion vector from the prediction motion vector candidate list. An encoding section 109 encodes information showing an index of the selected prediction motion vector in the prediction motion vector candidate list. |
