Encoding apparatus, encoding method, decoding apparatus, and decoding method

摘要

ABSTRACT Frames are divided into a plurality of sections on the basis of input images of the frames (S 8 ). One representative image that represents the image of each frame is set in each of the sections (S 10 ). One representative image to be referred to is selected so as to encode an image of a frame of interest from the representative images set for respective sections, and the image of the frame of interest is encoded by motion compensation using the images of the frames in the section that includes the selected representative image (S 13, S 14, S 15 ).