PICTURE CODING DEVICE, PICTURE CODING METHOD, AND PICTURE CODING PROGRAM, AND PICTURE DECODING DEVICE, PICTURE DECODING METHOD, AND PICTURE DECODING PROGRAM.

摘要

An image coding device for dividing difference information between an image to be coded and an image to be predicted into a plurality of sub-blocks, and coding the divided sub-blocks in a predetermined order, wherein a significant sub-block information coding control unit (708) and a calculation coding unit (701) code significant sub-block information indicating whether or not all of the values of difference coefficients belonging to the sub-block are zero. A significant coefficient information coding control unit (706) and the calculation coding unit (701) code significant difference coefficient information indicating whether or not the value of the difference coefficient is zero. A difference coefficient value coding control unit (707) and the calculation coding unit (701) code the value of the difference coefficient.