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:
Aug. 08, 2017
Filed:
Oct. 23, 2014
Applicant:
Utechzone Co., Ltd., New Taipei, TW;
Inventors:
Chia-Chun Tsou, New Taipei, TW;
Po-Tsung Lin, New Taipei, TW;
Assignee:
UTECHZONE CO., LTD., New Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/14 (2006.01); A61B 3/113 (2006.01); A61B 3/00 (2006.01); G06F 3/01 (2006.01); G06K 9/00 (2006.01); G06T 7/60 (2017.01); G06T 7/73 (2017.01);
U.S. Cl.
CPC ...
A61B 3/113 (2013.01); A61B 3/0025 (2013.01); G06F 3/013 (2013.01); G06K 9/0061 (2013.01); G06T 7/60 (2013.01); G06T 7/75 (2017.01); A61B 3/145 (2013.01); G06T 2207/30201 (2013.01);
Abstract
A method, an apparatus and a computer program product for positioning pupil are provided. A pupil contour is obtained from a pupil image after the pupil image is obtained. And an ellipse feature is obtained according to curvature information of the pupil contour, and then a sight direction is determined according to the ellipse feature.