Patent ID: 8879001
Filing Date: 2014-11-04
Classification: H04N

Abstract:
1. A method for detecting block artifacts, comprising: identifying a plurality of overlapping blocks in a picture from a sequence of moving video pictures with respect to a current block, where each one of said plurality of overlapping blocks covers a portion of the current block and a portion of an adjacent block; transforming at least one of the plurality of overlapping blocks into respective transform coefficients corresponding to at least one of a luminance component and a chrominance component; identifying a block artifact for the at least one of the plurality of overlapping blocks when a coefficient of said respective transform coefficients corresponding to the at least one of the plurality of overlapping blocks is larger than a value; determining a blockiness value for a block boundary between a first block and a second block in the picture, including: determining an artifact strength of the block artifact responsive to at least one of the identifying a block artifact and the determined blockiness value.