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.:

US 9251597 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 02, 2016

Filed:

Jul. 24, 2013
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Kamil Zukowski, Sokólka, PL;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 7/20 (2006.01); G06K 9/34 (2006.01); G06K 9/50 (2006.01); G06T 7/00 (2006.01);
U.S. Cl.
CPC ...
G06T 7/2033 (2013.01); G06K 9/00604 (2013.01); G06K 9/346 (2013.01); G06K 9/50 (2013.01); G06T 7/0046 (2013.01); G06T 2207/30041 (2013.01); G06T 2207/30196 (2013.01);
Abstract

A method for detecting a pupil in an image of an eye, comprises analyzing the image, exploiting an expected shape of the pupil, to identify portions of the image that are candidate portions of the pupil. A first region of the image, which corresponds to a lower part of the pupil, is analyzed in preference to a second region of the image, which corresponds to an upper part of the pupil, so as to reduce or avoid errors arising from artifacts that tend to be present in said second region of the image. A computer or processor program and an apparatus for performing the method are also disclosed.


Find Patent Forward Citations

Zukowski, Kamil. (2016). Method and apparatus for detecting a pupil (U.S. Patent No. 9251597). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9251597

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