US 12,137,227 B2
Video compression using block vector predictor refinement
Damian Ruiz Coll, Reston, VA (US); and Tae Meon Bae, McLean, VA (US)
Assigned to Comcast Cable Communications, LLC, Philadelphia, PA (US)
Filed by Comcast Cable Communications, LLC, Philadelphia, PA (US)
Filed on Sep. 30, 2022, as Appl. No. 17/957,193.
Claims priority of provisional application 63/316,312, filed on Mar. 3, 2022.
Claims priority of provisional application 63/250,336, filed on Sep. 30, 2021.
Prior Publication US 2023/0099655 A1, Mar. 30, 2023
Int. Cl. H04N 19/137 (2014.01); H04N 19/105 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/137 (2014.11) [H04N 19/105 (2014.11); H04N 19/176 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
determining, by a computing device and based on an intra block copy (IBC) reference region comprising positions of a plurality of valid reference blocks, one or more candidate block vector predictors (BVPs), wherein each of the one or more candidate BVPs comprises at least one of:
a horizontal component determined based on a width of a current block, or
a vertical component determined based on a height of the current block; and
determining a block vector (BV) for the current block based on a list of candidate BVPs that is modified to include at least one candidate BVP, from among the one or more candidate BVPs, that indicates a displacement from the current block to a position in the IBC reference region.