Patent ID: 8976870
Filing Date: 2015-03-10
Classification: H04N

Abstract:
1. A method for processing intra prediction of a plurality of sub-blocks in a block of video according to a plurality of prediction modes, said method comprising the steps of: (A) intra predicting a first group of said sub-blocks in a first quadrant of said block, each sub-block using a corresponding sequence of prediction modes; (B) intra predicting a second group of said sub-blocks in a second quadrant of said block after starting said intra predicting of said first group, each sub-block using a corresponding sequence of prediction modes; (C) intra predicting a third group of said sub-blocks in said first quadrant after starting said intra predicting of said second group, each sub-block using a corresponding sequence of prediction modes, wherein said first group and said third group together account for all of said sub-blocks in said first quadrant; wherein said plurality of sub-blocks in said block is processed in at least two parallel processes, and every two successively-indexed sub-blocks in said block are processed in two distinct processes in the at least two parallel processes, and wherein the sequence of prediction modes corresponding to each sub-blocks is scheduled in order of availability of context needed for the plurality prediction mode.