	US 12,108,038 B2
	Deblocking of video picture boundaries
Kenneth Andersson, Gävle (SE); Rickard Sjöberg, Stockholm (SE); Jacob Ström, Stockholm (SE); and Zhi Zhang, Solna (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Jul. 21, 2023, as Appl. No. 18/356,359.
Application 18/356,359 is a continuation of application No. 17/836,856, filed on Jun. 9, 2022, granted, now 11,758,131.
Application 17/836,856 is a continuation of application No. 16/494,158, granted, now 11,388,400, issued on Jul. 12, 2022, previously published as PCT/EP2019/066349, filed on Jun. 20, 2019.
Claims priority of provisional application 62/688,085, filed on Jun. 21, 2018.
Prior Publication US 2024/0022719 A1, Jan. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 7/12 (2006.01); G06T 9/00 (2006.01); H04N 19/117 (2014.01); H04N 19/119 (2014.01); H04N 19/12 (2014.01); H04N 19/159 (2014.01); H04N 19/172 (2014.01); H04N 19/176 (2014.01); H04N 19/189 (2014.01); H04N 19/61 (2014.01); H04N 19/635 (2014.01); H04N 19/86 (2014.01)

CPC H04N 19/117 (2014.11) [G06T 9/004 (2013.01); H04N 19/119 (2014.11); H04N 19/12 (2014.11); H04N 19/159 (2014.11); H04N 19/172 (2014.11); H04N 19/176 (2014.11); H04N 19/189 (2014.11); H04N 19/61 (2014.11); H04N 19/635 (2014.11); H04N 19/86 (2014.11)]

16 Claims

1. A method for decoding a video picture, the method comprising:

splitting a luma component of a coding unit into a first block and a second block without decoding any syntax element indicating the split on a block level;

decoding at least one transform coefficient for at least one of the first block and the second block;

applying an inverse transform to the at least one of the first block and the second block;

splitting the luma component of the coding unit into a plurality of prediction sub-blocks, wherein the plurality of prediction sub-blocks create at least one boundary in at least one of the first block and the second block;

applying a deblocking filter to a prediction boundary in at least one of the first block and the second block; and

applying a deblocking filter to a boundary between the first block and the second block,

wherein applying the deblocking filter to the prediction boundary in at least one of the first block and the second block comprises applying a first deblocking filter,

wherein applying the deblocking filter to a boundary between the first block and the second block comprises applying a second deblocking filter, and

wherein a maximum number of samples modified by the first deblocking filter is different than a maximum number of samples modified by the second deblocking filter.