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:
Oct. 02, 2018
Filed:
Sep. 15, 2016
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Hirowo Inoue, Kawasaki, JP;
Eiichi Takagi, Kawasaki, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 1/00 (2006.01); H04N 1/387 (2006.01);
U.S. Cl.
CPC ...
H04N 1/3873 (2013.01); H04N 1/00809 (2013.01); H04N 1/3876 (2013.01);
Abstract
An image processing apparatus obtains image data of a document image and extracts a plurality of feature points of the document image. The image processing apparatus obtains a skew angle of the document image with respect to a predetermined direction and an assembling angle of an image obtaining unit with respect to a predetermined assembling direction from a coordinate correspondence relationship between coordinates of a plurality of feature points of a registered document image registered in advance and coordinates of the plurality of extracted feature points of the document image.