US 11,895,292 B2
Encoder, decoder and corresponding methods of boundary strength derivation of deblocking filter
Biao Wang, Shenzhen (CN); Anand Meher Kotra, Munich (DE); Semih Esenlik, Munich (DE); Han Gao, Munich (DE); and Jianle Chen, San Diego, CA (US)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Dec. 29, 2021, as Appl. No. 17/564,416.
Application 17/564,416 is a continuation of application No. 17/014,993, filed on Sep. 8, 2020, granted, now 11,240,493.
Application 17/014,993 is a continuation of application No. PCT/CN2019/123845, filed on Dec. 7, 2019.
Claims priority of provisional application 62/776,491, filed on Dec. 7, 2018.
Claims priority of provisional application 62/792,380, filed on Jan. 14, 2019.
Prior Publication US 2022/0124314 A1, Apr. 21, 2022
Int. Cl. H04N 19/105 (2014.01); H04N 19/117 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/46 (2014.01); H04N 19/82 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/117 (2014.11); H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/46 (2014.11); H04N 19/82 (2014.11)] 14 Claims
OG exemplary drawing
 
1. A coding device, comprising:
one or more processors; and
a non-transitory computer-readable medium communicatively coupled to the one or more processors, wherein the one or more processors are configured to:
determine whether two blocks of an image in a video are predicted with an intra prediction;
determine whether at least one of the two blocks of the image in the video is predicted with a combined inter-intra prediction (CIIP), wherein the two blocks include a first block and a second block, and a boundary exists between the first block and the second block;
set a boundary strength (Bs) for the boundary to a first value when none of the two blocks is predicted with the intra prediction and when the at least one of the two blocks is predicted with the CIIP, wherein the first value is 2;
set the boundary strength (Bs) for the boundary to a second value when none of the two blocks is predicted with the CIIP; and
perform deblocking filter based on the Bs.