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:
Jan. 21, 2014
Filed:
Sep. 02, 2010
Applicants:
Junko Nakajima, Tokyo, JP;
Norihiko Utsunomiya, Machida, JP;
Inventors:
Junko Nakajima, Tokyo, JP;
Norihiko Utsunomiya, Machida, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
It is an object of the invention to provide a method of extracting a crossing/branching portion of a blood vessel from a fundus image of the eye at a high probability. The crossing/branching portion of the blood vessel is extracted from the fundus image under such conditions that three or more blood vessels run on an outer circumferential portion of an extraction candidate region and that a coordinate average of a plurality of blood vessels in the outer circumferential portion exists in a center portion of the extraction candidate region.