Patent ID: 9204155
Filing Date: 2015-12-01
Classification: H04N

Abstract:
1. An apparatus comprising: a codec configured to predict an intra mode for a considered block based on a plurality of group numbers and a plurality of corresponding group indices for a plurality of used modes of a plurality of adjacent blocks to the considered block, wherein a group number corresponding to an actual intra mode for the considered block is signaled if the predicted intra mode does not match the actual intra mode, wherein the predicted intra mode is one of a plurality of intra modes separated in a plurality of groups, wherein each of the intra modes is only included in one of the groups, and wherein two rounds of Rate-Distortion (R-D) cost search are performed for each considered block, and wherein one or more additional intra modes in comparison to Testing Model under Consideration (TMuC) implementation are considered in a second round of the R-D cost search.