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. 14, 2017
Filed:
Feb. 19, 2014
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Kazuhiro Yahata, Kunitachi, JP;
Yoshitaka Sasaki, Kawasaki, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06K 9/40 (2006.01); G06T 5/00 (2006.01); G06T 5/20 (2006.01);
U.S. Cl.
CPC ...
G06K 9/40 (2013.01); G06T 5/002 (2013.01); G06T 5/20 (2013.01);
Abstract
In a case where a weighted mean value is calculated by calculating weights according to a degree of similarity based on a target pixel, the mean value is affected by noise included in the target pixel. The mean value thereby converges at a value different from a true pixel value without noise and this appears as a remaining noise. To solve this problem, an output value of the target pixel is determined based on a correlation established among a weighted mean value of multiple reference pixels, a pixel value of the target pixel, and the true value of the target pixel.