US 12,278,977 B2
Cross-component filtering on block-level reconstruction
Xin Zhao, Santa Clara, CA (US); Yixin Du, Los Altos, CA (US); and Shan Liu, San Jose, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed on Dec. 14, 2022, as Appl. No. 18/065,940.
Application 18/065,940 is a continuation of application No. 17/315,989, filed on May 10, 2021, granted, now 11,595,676.
Claims priority of provisional application 63/079,322, filed on Sep. 16, 2020.
Prior Publication US 2023/0110374 A1, Apr. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/44 (2014.01); H04N 19/117 (2014.01); H04N 19/132 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/80 (2014.01)
CPC H04N 19/44 (2014.11) [H04N 19/117 (2014.11); H04N 19/132 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/80 (2014.11)] 18 Claims
OG exemplary drawing
 
1. A method of decoding in a decoder, the method comprising:
decoding prediction information of a current block in a current picture that is a part of a coded video sequence;
determining whether a cross component filtering (CCF) process is enabled for the current block based on quantization parameters when the quantization parameters of the current block indicate whether the CCF process is enabled for the current block;
generating filtered reconstruction samples of the current block by applying the CCF process on at least one of predicted samples, residual values, or reconstruction samples of the current block based on the CCF process being enabled, the filtered reconstruction samples of the current block being available for intra prediction and inter prediction of a subsequent block; and
reconstructing the current block and the subsequent block based on the filtered reconstruction samples of the current block.