DATA STRUCTURE FOR IMAGE TRANSMISSION, IMAGE ENCODING METHOD AND IMAGE DECODING METHOD

摘要

PROBLEM TO BE SOLVED: To suppress the quantity of encoding by making it possible to decode an encoded signal of a binary picture signal including only a shape signal as picture information, and at the time of encoing a binary picture signal, making it unnecessary to add a false texture encoding bit string to a shape encoding bit string in an image decoding device for decoding an encoded signal of an optional shape picture signal including a shape signal and a texture signal as picture information. SOLUTION: The decoding device is provided with a data analyzer 160 for analyzing an image encoded signal having an image discriminator corresponding to data structure by referring to the discriminator. Decoding processing corresponding to an optional shape encoded signal including a shape encoded bit string and a pixel value encoded bit string as display data is executed by a shape decoding part 170 and a texture decoding part 180 and decoding processing for a binary encoded signal including only a shape encoded bit string as display data is executed by the shape decoding part 170.