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. 22, 2013
Filed:
Jul. 30, 2010
Changmeng Liu, San Jose, CA (US);
Yingjun Bai, San Jose, CA (US);
Qun Sun, San Jose, CA (US);
Aptina Imaging Corporation, George Town, KY;
Abstract
An imaging system may include a dual-band image sensor that captures visible and near-infrared light and image processing circuitry that performs color corrections on images captured by the dual-band image sensor. The image processing circuitry may analyze each captured image in two different color spaces to determine what type of light source lit each image. The image processing circuitry may determine whether an image was lit by a light source having a relatively high proportion of near-infrared emissions such as an incandescent light, a light source having a relatively low proportion of near-infrared emissions such as a fluorescent light, or a light source having an intermediate proportion of near-infrared emissions such as sunlight or other blackbody radiator. After determining what type of light source lit an image, the image processing circuitry may adjust color balances in that image using a color correction matrix associated with that type of light source.