| 摘要 |
PROBLEM TO BE SOLVED: To enhance coding efficiency while limiting the amount of memory access of a reference picture, when performing motion compensation prediction.SOLUTION: A motion compensation prediction unit 112 generates a prediction signal of an encoded prediction block by motion compensation using the motion information derived. A coding block control parameter generation unit 122 generates first control parameters for specifying whether or not the motion compensation prediction is allowed in a prediction block size of first size, and second control parameters for prohibiting bi-predictive motion compensation in a prediction block size of second size or less, and for specifying a second size. A block structure/prediction mode information additional information encoding unit 118 encodes the information including the first and second control parameters and being used for motion compensation prediction. The motion compensation prediction unit 112 performs motion compensation prediction on the basis of the first and second control parameters. |
