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:
Jan. 14, 2025
Filed:
Dec. 16, 2020
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
There is provided a method for encoding or decoding an image. The method comprises obtaining a first luma sample value, L1, associated with the image. The method comprises obtaining a second luma sample value, L2, associated with the image. The method further comprises obtaining a first luma delta value, ΔL1, wherein ΔL1=L2−L1. The method comprises obtaining a first product, P1, using ΔL1 and a first coefficient value, C1, wherein P1=(C1)(ΔL1). The method comprises calculating a first residual correction value, ΔI1 using P1 and a set of other products. The method comprises filtering an unfiltered chroma value, R, associated with the image using the first residual correction value, ΔI1, thereby producing a filtered chroma value Rassociated with the image.