IMAGE PREDICT CODING DEVICE, IMAGE PREDICT CODING METHOD, IMAGE PREDICT CODING PROGRAM, IMAGE PREDICT DECODING DEVICE, IMAGE PREDICT DECODING METHOD, AND IMAGE PREDICT DECODING PROGRAM

摘要

An image predict coding device of an embodiment derives motion information for acquiring a signal with a high degree of correlation with a pixel signal of an object region which is treated as an object to be coded from an already played comparison window. The motion information includes predict modes on a single prediction using one comparison window and a dual prediction using two comparison windows, which are treated as selection candidates. One prediction mode is selected from the two prediction mode candidates. If the single prediction is selected, the motion information is derived from one comparison window which is defined in a single comparison window list for the single prediction wherein a plurality of comparison window frame numbers are registered. At least the predict mode is coded as the motion information.