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:
Oct. 09, 2012
Filed:
Mar. 26, 2010
Xiaoling Wang, San Jose, CA (US);
Farhan Baqai, Fremont, CA (US);
Takami Mizukura, Kanagawa, JP;
Naoya Kato, Chiba, JP;
Xiaoling Wang, San Jose, CA (US);
Farhan Baqai, Fremont, CA (US);
Takami Mizukura, Kanagawa, JP;
Naoya Kato, Chiba, JP;
Sony Corporation, Tokyo, JP;
Abstract
Improving color calibration, and similar operations, by generating an optimal raw RGB color chart, in the raw RGB domain, for an imaging device with a given type of image sensor, such as for a digital still camera. Calibration is performed in response to a constraint which takes into account the spectral sensitivity of the image sensor used on the camera as well as spectral reflectance and spectral radiance of multiple illuminants. Calibration is performed using the raw RGB color chart which is illuminant independent and image sensor specific and which can match the calibration performance of known calibration standards, such as Macbeth 24.