Patent ID: 8135074
Filing Date: 2012-03-13
Classification: H04N

Abstract:
1. A decoding apparatus, comprising: pixel group information storage means including a plurality of memory areas each of which stores, as pixel group information, information concerning a corresponding pixel group and is referred to with a horizontal address of the pixel group in a frame, and an additional memory area that is located at a left end of the plurality of memory areas and stores a value that indicates invalid pixel group information; decoding information generation means for acquiring the pixel group information stored in memory areas identified by an address of a pixel group that is to be decoded and an address to an immediate left of that address, and generating, as decoding information, information that is necessary for decoding of the pixel group that is to be decoded; decoding means for performing a decoding process based on the decoding information; and pixel group information update means for generating pixel group information concerning the pixel group that is to be decoded based on a value based on the decoding information, and allowing the generated pixel group information to be stored in the memory area in said pixel group information storage means that is identified by the address of the pixel group that is to be decoded to update the pixel group information.