US 12,439,030 B2
Luma mapping for template matching
Vasily Alexeevich Rufitskiy, Vladimir (RU); Alexey Konstantinovich Filippov, Khimki (RU); and Esmael Hejazi Dinan, McLean, VA (US)
Assigned to Comcast Cable Communications, LLC, Philadelphia, PA (US)
Filed by Comcast Cable Communications, LLC, Philadelphia, PA (US)
Filed on Jan. 5, 2024, as Appl. No. 18/405,555.
Claims priority of provisional application 63/437,887, filed on Jan. 9, 2023.
Claims priority of provisional application 63/437,353, filed on Jan. 5, 2023.
Prior Publication US 2024/0244180 A1, Jul. 18, 2024
Int. Cl. H04N 7/12 (2006.01); H04N 19/105 (2014.01); H04N 19/159 (2014.01); H04N 19/167 (2014.01); H04N 19/174 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/159 (2014.11); H04N 19/167 (2014.11); H04N 19/174 (2014.11); H04N 19/176 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
based on a location of a current block (CB) associated with video determining a location of a candidate reference block (RB);
based on transforming one or more samples, of a template of the CB, from a luma mapped domain to a spatial domain, determining a first inverse luma mapping of the one or more samples of the template of the CB;
based on transforming one or more samples, of a template of the RB, from a luma mapped domain to the spatial domain, determining a second inverse luma mapping of the one or more samples of the template of the RB; and
determining a template matching cost associated with the candidate RB based on a difference between:
the one or more samples of the template of the CB; and
the one or more samples of the template of the RB.