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:
Oct. 18, 2016
Filed:
Jul. 22, 2013
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Takuya Kamimura, Kobe, JP;
Hiroyasu Yoshikawa, Akashi, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A gaze detection apparatus includes a light source which illuminates a user's eye, an imaging unit which generates an image by capturing the image of a user's face, and a processor adapted to: estimate a distance between the imaging unit and the user's face; calculate the ratio of the distance between the imaging unit and the user's face to a separation distance between the imaging unit and the light source and determine, based on the ratio, whether a bright pupil phenomenon occurs; detect from the captured image a corneal reflection image of the light source and a center of the user's pupil when determining that the bright pupil phenomenon does not occur; and detect the user's gaze direction or gaze position based on a positional relationship between the center of the user's pupil and the corneal reflection image when determining that the bright pupil phenomenon does not occur.