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.

Date of Patent:
Feb. 03, 2026

Filed:

Jun. 22, 2022
Applicant:

Nokia Technologies Oy, Espoo, FI;

Inventor:

Jani Lainema, Tampere, FI;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/186 (2014.01); H04N 19/176 (2014.01); H04N 19/50 (2014.01);
U.S. Cl.
CPC ...
H04N 19/186 (2014.11); H04N 19/176 (2014.11); H04N 19/50 (2014.11);
Abstract

A method comprising: calculating at least two parameters (a, b) that define a mapping from a first color component (Y) to a second color component (Cb/Cr), the at least two parameters (a, b) including at least a slope parameter (a) and an offset parameter (b); determining an update term (u) to the slope parameter (a); applying the update term (u) to the slope parameter (a) by adding the update term (u) to the value of the slope parameter (a) to generate an updated slope parameter (a); determining a reference value (yr) of first color component (Y); and calculating an updated offset parameter (b) based on the reference value (yr) of the first color component (Y) and the updated slope parameter (a')


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