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:
Aug. 23, 2022
Filed:
Sep. 07, 2016
Applicant:
Google Llc, Mountain View, CA (US);
Inventors:
Robert Obryk, Zurich, CH;
Jyrki Antero Alakuijala, Wollerau, CH;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2022.01); H04N 1/60 (2006.01); H04N 1/64 (2006.01); G06V 10/28 (2022.01);
U.S. Cl.
CPC ...
H04N 1/6088 (2013.01); G06V 10/28 (2022.01); H04N 1/644 (2013.01);
Abstract
Techniques of color image processing involve performing a transformation for each color channel that mixes intensity values from other channels to produce a new intensity value for that channel. The new intensity values, representing the effect of overlapped response spectra of the S, M, and L cones, then provide values of the sensitivities of the photoreceptors of each of the cones. These values of the sensitivities form the basis of more accurate color image processing. For example, compression ratios of gamma-compressed color images may be increased when more the sensitivities are more accurate.