Patent ID: 9143793
Filing Date: 2015-09-22
Classification: H04N

Abstract:
1. A video processing system, comprising: a memory unit for storing data structures that represent transform coefficient groups of layers of macroblocks and for storing layer information associated with quality levels of macroblocks, wherein the transform coefficient groups are transform, coefficient groups of H.264 SVC video protocols; a decoder, connected to the memory unit, comprising: a data transfer unit, connected to the memory unit and to the decoder, for transferring the non-zero data structures and layer information to the decoder; and for writing the non-zero indicators and the non-zero data structures to the memory unit, wherein the decoder is for receiving from the memory unit a first non-zero data structure and first non-zero indicators of a first layer macroblock of a first quality level, for reconstructing first transform coefficient groups of the first layer macroblock from the first non-zero data structure and the first non-zero indicators, for receiving from the memory unit second layer information associated with a second quality level higher than the first quality level, for processing the second layer information and the first non-zero data structure to provide second transform coefficient groups, for generating a second non-zero data structure that comprises only non-zero second transform coefficient groups of the second transform coefficient groups, and for generating second non-zero indicators that are indicative of positions of non-zero transform coefficient groups among the first transform coefficient groups and the second transform coefficient groups, wherein the memory unit is to store the second non-zero indicators.