IMAGE DECODING DEVICE, IMAGE ENCODING DEVICE, METHOD FOR SAID DEVICES, PROGRAM, INTEGRATED CIRCUIT, AND TRANSCODER

摘要

An image decoding device (C100) which increases decoding efficiency and can be easily implemented includes: a division unit (C101) dividing coded image data into first and second coded image data; a frame storage unit (C102); first and second decoding units (C103 and C104) decoding, in parallel, the first and second coded image data; and an information storage unit (C105). The first decoding unit (C103) decodes the first coded image data using second decoding result information stored in the information storage unit (C105) and stores, as first decoding result information, a part of information generated by the decoding into the information storage unit (C105). The second decoding unit (C104) decodes the second coded image data using the first decoding result information stored in the information storage unit (C105) and stores, as the second decoding result information, a part of information generated by the decoding into the information storage unit (C105).