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:
Jun. 24, 2014
Filed:
Apr. 28, 2010
Satoru Oyabu, Kanagawa, JP;
Yasuji Nakamura, Fukuoka, JP;
Yuma Kobayashi, Fukuoka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A camera device () includes: an imaging unit () having a complementary color filter; a color temperature estimating unit () that estimates a color temperature on the basis of a video signal obtained from the imaging unit (); a color parameter calculating unit () that calculates a color parameter value corresponding to the estimated color temperature; and a color calibrating unit () that performs color calibration using the calculated color parameter value. The color parameter calculating unit () calculates the color parameter value corresponding to the estimated color temperature on the basis of color parameter values (a first color parameter value and a second color parameter value) at two reference color temperatures (a first color temperature 2000 K and a second color temperature 3200 K). This allows performing color calibration with high color reproducibility using suitable color parameter values according to a change in an illumination condition as well as allows substantially reducing an amount of data required to determine the suitable color parameter values.