MOVING PICTURE CODING METHOD AND MOVING PICTURE DECODING METHOD

摘要

A moving picture encoder (1) comprising a counter unit (102) for counting pictures starting with the picture subjected to intra-picture encoding and a moving detection unit (101) for detecting a reference picture having the smallest intra-picture difference by comparing a picture signal Vin with onl y the reference pictures after the start of intra-picture encoding among a reference picture Ref1, a reference picture Ref2, and a reference picture Re f3 stored in memories (408 to 410) according to the number of referencable pictures Num, which is the result of the counting by the counter unit (102).