Patent ID: 9554128
Date: 2017-01-24
CPC Classifications: H04N

Claim:
1. A method of deblocking for reconstructed video in a video coding system, the method comprising: receiving reconstructed pixel data associated with a block boundary between two adjacent N×N blocks, where N is an integer; separating the block boundary into a first sub-boundary and a second sub-boundary for a vertical boundary or horizontal boundary; determining a first pixel group, wherein the first pixel group comprises a first group of line segments across the first sub-boundary of the vertical boundary or a first group of column segments across the first sub-boundary of the horizontal boundary; determining a second pixel group, wherein the second pixel group comprises a second group of line segments across the second sub-boundary of the vertical boundary or a second group of column segments across the second sub-boundary of the horizontal boundary; determining a first filter decision for the first sub-boundary based on the first pixel group, wherein determining a second filter decision for the second sub-boundary based on the second pixel group; applying deblocking filter to the first sub-boundary according to the first filter decision; and applying deblocking filter to the second sub-boundary according to the second filter decision.