Patent ID: 8588303
Filing Date: 2013-11-19
Classification: H04N

Abstract:
1. An apparatus comprising a processor configured to: receive a current block of an image; select an optimal prediction mode of a plurality of prediction modes for the current block, wherein the selected prediction mode corresponds to a selected one of a plurality of group-numbers and a selected one of a plurality of index-numbers; predict one of the plurality of group-numbers based on a first known group-number and a second known group-number, wherein the predicted group-number is predicted independent from any known index-numbers; clear a first flag when the predicted group-number matches the selected group-number; set the first flag and encode the selected group-number into a coded data stream when the predicted group-number does not match the selected group-number, wherein the first flag is located in an overhead of the coded data stream predict one of the plurality of index-numbers based on a first known index-number and a second known index-number, wherein the predicted index-number is predicted independent from any known group-numbers; clear a second flag when the predicted index-number matches the selected index-number; and set the second flag and encode the selected index-number when the predicted group number does not match the selected group-number, wherein the second flag is located in the overhead of the coded data stream.