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:
Apr. 28, 2015
Filed:
Apr. 19, 2011
Takashi Hiramaki, Nagoya, JP;
Atsushi Nakabayashi, Anjo, JP;
Masayuki Usami, Nagoya, JP;
Tamiko Nishina, Nisshin, JP;
Hiroaki Iida, Hashima, JP;
Takashi Hiramaki, Nagoya, JP;
Atsushi Nakabayashi, Anjo, JP;
Masayuki Usami, Nagoya, JP;
Tamiko Nishina, Nisshin, JP;
Hiroaki Iida, Hashima, JP;
Aisin Seiki Kabushiki Kaisha, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Abstract
A secondary curve, the ends of which coincide with the inner corner and the outer corner of the eye, is determined successively, and the total of the edge values of the pixels overlapping the secondary curve is calculated as an evaluation value. Next, a characteristic curve is generated on the basis of data made up of the calculated evaluation value and the Y-coordinate of the intersection between the secondary curve and a straight line passing through the center of a line segment whose ends coincide with the inner corner and the outer corner of the eye. Then, the reference positions for the upper eyelid and the lower eyelid of the eye are set on the basis of the result of an attempt to detect a pixel group occurring because of the red-eye effect in a search area defined on the basis of peaks in the characteristic curve.