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:
Jul. 12, 2016
Filed:
Oct. 17, 2011
Applicant:
Richard John Campbell, Camas, WA (US);
Inventor:
Richard John Campbell, Camas, WA (US);
Assignee:
Sharp Laboratories of America, Inc., Camas, WA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06T 5/00 (2006.01); G06K 9/32 (2006.01);
U.S. Cl.
CPC ...
G06K 9/32 (2013.01); G06T 5/006 (2013.01);
Abstract
Aspects of the present invention are related to systems, methods and apparatus for correcting artifacts in a camera-captured document image and, in particular, to methods, systems and apparatus for correcting perspective distortion in the camera-captured document image. Multiple rectification hypothesis may be generated and verified based on a plurality of geometric rectification quality measure values. In particular, a first rectification hypothesis may be associated with a first bounding quadrilateral determined by estimation of horizontal and vertical vanishing information.