Patent ID: 8422772
Filing Date: 2013-04-16
Classification: H04N

Abstract:
1. A decoding device that decodes coded image data having a plurality of color components, the decoding device comprising: a variable length decoding unit configured to perform variable length decoding on the coded image data to generate variable length decoded data; a separation unit configured to, after the variable length decoding unit generates the variable length decoded data, (i) separate the plurality of color components into a number of color components, and (ii) obtain, from the variable length decoded data generated by the variable length decoding unit, pieces of data to be decoded in decoding processes as necessary data, each of the pieces of data being required in at least one of decoding processes, and each of the decoding processes corresponding to a corresponding component of the number of color components; image reconstruction units, each of the image reconstruction units corresponding to a corresponding component of the number of color components, and configured to generate a decoded image regarding the corresponding component using the necessary data obtained by the separation unit, the image reconstruction units performing the generation in parallel; and a control unit configured to decide a separation method of separating the plurality of color components to the number of color components, based on a chrominance format of the coded image data, wherein the separation unit is configured to (i) separate the plurality of color components to the number of color components according to the separation method decided by the control unit, and (ii) obtain the necessary data required in each of the decoding processes, and each of the image reconstruction units is configured to generate a decoded image regarding the corresponding component, according to the separation method decided by the control unit.