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:
May. 01, 2018
Filed:
Feb. 24, 2016
Applicant:
Pixart Imaging Inc., Hsin-Chu, TW;
Inventors:
Assignee:
PixArt Imaging Inc., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/217 (2011.01); H04N 17/00 (2006.01); H04N 5/365 (2011.01); H04N 5/3745 (2011.01);
U.S. Cl.
CPC ...
H04N 17/002 (2013.01); H04N 5/3655 (2013.01); H04N 5/3658 (2013.01); H04N 5/3745 (2013.01);
Abstract
A method for reducing fixed pattern noise of an image sensor is provided. The method includes: accessing pixel data of at least one test frame in a test environment; and calculating/deriving average values of each column based on at least one portion of pixel data of the column in the at least one test frame, wherein the average values of columns are used as calibration values for calibrating image pixel data of columns when the image sensor operates in a normal light source environment.