US 12,407,825 B2
Deblocking using sub-PEL motion vector threshold
Kenneth Andersson, Gävle (SE); Jack Enhorn, Kista (SE); and Ruoyang Yu, Täby (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Dec. 11, 2023, as Appl. No. 18/535,787.
Application 18/535,787 is a continuation of application No. 17/434,074, granted, now 11,902,516, previously published as PCT/SE2020/050193, filed on Feb. 19, 2020.
Claims priority of provisional application 62/811,354, filed on Feb. 27, 2019.
Prior Publication US 2024/0187583 A1, Jun. 6, 2024
Int. Cl. H04N 19/117 (2014.01); H04N 19/105 (2014.01); H04N 19/137 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/117 (2014.11) [H04N 19/105 (2014.11); H04N 19/137 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method for deblocking at least one vertical or horizontal boundary between a first block of samples of a coding unit and a second block of samples of the coding unit, wherein a video picture comprises the coding unit, and wherein the first and second blocks of samples use a same reference picture, the method comprising:
obtaining a first motion vector component in the first block of samples;
obtaining a second motion vector component in the second block of samples;
setting a boundary strength equal to 1;
determining whether an absolute difference between the first motion vector component and the second motion vector component is equal to or larger than a predetermined threshold, wherein the predetermined threshold is N/16, where N is an integer greater than 0 and less than 16; and
as a result of determining that the absolute difference between the first motion vector component and the second motion vector component is equal to or larger than the predetermined threshold, applying deblocking to the vertical or horizontal boundary between the first block of samples and the second block of samples.