US 12,316,838 B2
System and method for video coding
Hai Wei Sun, Singapore (SG); Chong Soon Lim, Singapore (SG); Jing Ya Li, Singapore (SG); Han Boon Teo, Singapore (SG); Che-Wei Kuo, Singapore (SG); Chu Tong Wang, Singapore (SG); Tadamasa Toma, Osaka (JP); Takahiro Nishi, Nara (JP); Kiyofumi Abe, Osaka (JP); and Yusuke Kato, Osaka (JP)
Assigned to Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed by Panasonic Intellectual Property Corporation of America, Torrance, CA (US)
Filed on Apr. 5, 2024, as Appl. No. 18/628,452.
Application 18/628,452 is a continuation of application No. 17/992,833, filed on Nov. 22, 2022, granted, now 12,022,072.
Application 17/992,833 is a continuation of application No. 17/582,937, filed on Jan. 24, 2022, granted, now 11,546,590, issued on Jan. 3, 2023.
Application 17/582,937 is a continuation of application No. PCT/JP2020/030512, filed on Aug. 7, 2020.
Claims priority of provisional application 62/884,420, filed on Aug. 8, 2019.
Prior Publication US 2024/0275963 A1, Aug. 15, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/117 (2014.01); H04N 19/132 (2014.01); H04N 19/186 (2014.01); H04N 19/82 (2014.01)
CPC H04N 19/117 (2014.11) [H04N 19/132 (2014.11); H04N 19/186 (2014.11); H04N 19/82 (2014.11)] 2 Claims
OG exemplary drawing
 
1. A non-transitory computer readable medium storing a bitstream containing information according to which an encoder performs an encoding process, wherein in the encoding process:
a first coefficient value is generated by applying a CCALF (cross component adaptive loop filtering) process to a first reconstructed image sample of a luma component;
the first coefficient value is clipped to be within a range of −27 to 27−1;
the clipped first coefficient value is set to zero in response to the first coefficient value being less than 64;
a second coefficient value is generated by applying an ALF (adaptive loop filtering) process to a second reconstructed image sample of a chroma component;
the second coefficient value is clipped;
a third coefficient value is generated by adding the clipped first coefficient value to the clipped second coefficient value;
the third coefficient value is clipped; and
a third reconstructed image sample of the chroma component is encoded using the clipped third coefficient value.