VIDEO PREDICTIVE ENCODING DEVICE, VIDEO PREDICTIVE ENCODING METHOD, VIDEO PREDICTIVE ENCODING PROGRAM, VIDEO PREDICTIVE DECODING DEVICE, VIDEO PREDICTIVE DECODING METHOD, AND VIDEO PREDICTIVE DECODING PROGRAM.

摘要

Conventional methods for a NAL unit header have an inefficient design in which bits are allocated to each of nal_ref_flag and nal_unit_type even if the value of nal_ref_flag is uniquely determined according to the value of nal_unit_type. The video predictive encoding device according to the present invention is equipped with an input means that inputs a plurality of images that constitute a video, and an encoding means that encodes the plurality of images using either an intra prediction method or an inter prediction method, generates compressed image data, and packetizes the compressed image data together with packet header information. The packet header information includes picture type. The encoding means determines the picture type to uniquely show whether an encoded picture data is used as a reference when decoding another picture.