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:
Mar. 03, 2009
Filed:
Nov. 18, 2004
Takashi Matsutani, Osaka, JP;
Takashi Matsutani, Osaka, JP;
Mega Chips LSI Solutions Inc., Osaka-shi, JP;
Abstract
A sensor such as a CCD image pickup device is equipped with a color filter of RGB Bayer array. An image is read from such a sensor (S) and inputted to a color interpolation device as raw data (S). The color interpolation device calculates additional values DH and DV of differential absolute values of pixel values in a horizontal direction and a vertical direction by using pixels of all colors in a peripheral area of a specified pixel (Sand S). The additional values DH and DV are compared with each other (S) and when it is judged that there is a tendency of pixel drift in the horizontal direction or the vertical direction, Sis executed. In S, when a correlation in the vertical direction is strong, an interpolation using vertical adjacent pixels is performed and when a correlation in the horizontal direction is strong, an interpolation using horizontal adjacent pixels is performed. By this method, it is possible to improve the accuracy of color interpolation.