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:
Mar. 22, 2011
Filed:
Mar. 12, 2008
Tomoharu Suzuki, Anjo, JP;
Jun Adachi, Obu, JP;
Shinichi Kojima, Nisshin, JP;
Kenichi Ohue, Toyota, JP;
Yuji Ninagawa, Nishikamo-gun, JP;
Tomoharu Suzuki, Anjo, JP;
Jun Adachi, Obu, JP;
Shinichi Kojima, Nisshin, JP;
Kenichi Ohue, Toyota, JP;
Yuji Ninagawa, Nishikamo-gun, JP;
Aisin Seiki Kabushiki Kaisha, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-ken, JP;
Abstract
An eyelid detection apparatus includes edge image generating means for generating an edge image representing a magnitude of pixel value change per pixel in a predetermined direction in a region including an eye, based upon an image of the region; local peak value point searching means for searching a local peak value point, where the magnitude of pixel value change reaches a local peak value in the predetermined direction, in the edge image; and boundary point detecting means for detecting at least one of a first boundary point indicating a boundary between an upper eyelid and an eyeball and a second boundary point indicating a boundary between a lower eyelid and the eyeball, based upon a point which is shifted from the local peak value point in a direction towards the eyeball.