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:
Feb. 17, 2015
Filed:
Sep. 16, 2011
Applicants:
Hiroshi Ogino, Tokyo, JP;
Yuji Koide, Yokohama, JP;
Inventors:
Hiroshi Ogino, Tokyo, JP;
Yuji Koide, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/64 (2006.01); G06K 9/40 (2006.01); H04N 5/365 (2011.01); H04N 5/217 (2011.01);
U.S. Cl.
CPC ...
H04N 5/365 (2013.01); H04N 5/2176 (2013.01); H04N 5/3658 (2013.01);
Abstract
A black image captured in a light-shielded state is obtained, and the streak intensity is determined for each pixel of the black image from the absolute value of an AC component in a region containing the pixel. An extraction image which extracts streak-like fixed pattern noise in a captured image is generated using a black image obtained by applying, to the obtained black image, the first filter for reducing random noise in the first direction.