ENCODER APPARATUS, DECODER APPARATUS, MOVING IMAGE ENCODER APPARATUS, MOVING IMAGE DECODER APPARATUS, AND ENCODING DATA

摘要

An encoder apparatus comprises: an MV flag deciding unit (1115) that extracts, by use of information as to which PMV was selected from among a plurality of PMV candidates, MV candidates, which exist in an area where MV possibly exists, from among tentative MV candidates; and an MV index encoding unit (1153) that, if there are two or more MV indices determining the MV candidates extracted by the MV flag deciding unit (1115), encodes each of the MV indices.