The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2025
Filed:
May. 20, 2024
Panasonic Intellectual Property Corporation of America, Torrance, CA (US);
Jing Ya Li, Singapore, SG;
Chong Soon Lim, Singapore, SG;
Hai Wei Sun, Singapore, SG;
Han Boon Teo, Singapore, SG;
Che Wei Kuo, Singapore, SG;
Chu Tong Wang, Singapore, SG;
Kiyofumi Abe, Osaka, JP;
Takahiro Nishi, Nara, JP;
Tadamasa Toma, Osaka, JP;
Yusuke Kato, Osaka, JP;
Panasonic Intellectual Property Corporation of America, Torrance, CA (US);
Abstract
An encoder includes circuitry and memory. The circuitry, in operation, generates a first coefficient value by applying a CCALF (cross component adaptive loop filtering) process to a first reconstructed image sample of a luma component. The circuitry generates a second coefficient value by applying an ALF (adaptive loop filtering) process to a second reconstructed image sample of a chroma component. The circuitry generates a third coefficient value by adding the first coefficient value to the second coefficient value, and encodes a third reconstructed image sample of the chroma component using the third coefficient value. In the CCALF process, in response to a coordinate of the second reconstructed image sample being (x, y), coordinates of the first reconstructed image samples are (2x, 2y−1), (2x−1, 2y), (2x, 2y), (2x+1, 2y), (2x−1, 2y+1), (2x, 2y+1), (2x+1, 2y+1), and (2x, 2y+2).