IMAGE CODING APPARATUS, IMAGE CODING METHOD, AND PROGRAM, AND IMAGE DECODING APPARATUS, IMAGE DECODING METHOD, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To prevent deterioration in performance due to processing for copying a context parameter between memories.SOLUTION: An updated context parameter is written in both context memories 150-152 corresponding to respective entropy coding units 120-122 and a context shared memory 160 until M blocks from a left end of a slice are coded.