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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.:

US 9514535 B1

PDFFull Text
Date of Patent:
Dec. 06, 2016

Filed:

Feb. 22, 2016

Color calibration method of camera module

Applicant:

Thousand Lights Lighting (Changzhou) Limited, Changzhou, Jiangsu Province, CN;

Inventors:

Ming Ronnier Luo, Changzhou, CN;

Binyu Wang, Changzhou, CN;

Assignee:

THOUSAND LIGHTS LIGHTING (CHANGZHOU) LIMITED, Changzhou, Jiangsu Province, CN;

Attorney:

Jiwen Chen

Primary Examiner:

Michael Teitelbaum

Int. Cl.
CPC ...
H04N 17/00 (2006.01); G06T 7/40 (2006.01); G06T 7/00 (2006.01);
U.S. Cl.
CPC ...
G06T 7/0018 (2013.01); G06T 7/408 (2013.01); H04N 17/002 (2013.01); G06T 2207/10024 (2013.01);
Abstract

According to the present invention, firstly multiple reference parameter values of each color sample in a color chart are set, or a photograph and a measurement are performed on a standard color chart or a user-defined color chart in a certain standard lighting environment, multiple reference parameter values, SPD (λ)×R (λ) and brightness of each color sample are obtained. Then the SPD (λ)×R (λ) and the brightness of each color sample are reproduced by using a spectral tunable lighting source. Then each reproduced color sample is photographed by using the camera under the same settings to obtain multiple reproduced parameter values of each color sample. The two groups of parameter values are compared and a color calibration model is established. Finally color calibration of each batch of camera modules is implemented without the helping of a color chart and standard lighting environment. The present invention has the characteristics of high automation degree, high flexibility and adaptability, and high convenience in color changing and color sample calibrating, and thus has an extremely high practical value.

Find Patent Forward Citations

Luo, Ming. (2016). Color calibration method of camera module (U.S. Patent No. 9514535). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9514535

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