Patent ID: 7650043
Filing Date: 2010-01-19
Classification: H04N

Abstract:
1. A method of removing blocking artifacts from a block-coded digital image, the method comprising: adjusting filtering offsets on a block-by-block basis using motion vector (MV) and quantization parameter (QP) values, a block being a subdivision of a slice; and performing deblocking filtering to remove the blocking artifacts from a decoded digital image using the adjusted filtering offsets, wherein the performing of the deblocking filtering to remove the blocking artifacts from the decoded digital image using the adjusted filtering offsets comprises performing post filtering to remove the blocking artifacts using the filtering offsets of a block unit obtained by the MV and QP values of the block unit, wherein the adjusting of the filtering offsets on the block-by-block basis using motion vector (MV) and quantization parameter (QP) values comprises adjusting filtering offsets based on QP value of a corresponding block, which is determined using MV value of the current block, in a previous frame.