Invention Grant
- Patent Title: Visual axis direction detection device and visual line direction detection method
- Patent Title (中): 视轴方向检测装置和视线方向检测方法
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Application No.: US12373582Application Date: 2007-07-13
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Publication No.: US08406479B2Publication Date: 2013-03-26
- Inventor: Sotaro Tsukizawa
- Applicant: Sotaro Tsukizawa
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2006-194892 20060714
- International Application: PCT/JP2007/064011 WO 20070713
- International Announcement: WO2008/007781 WO 20080117
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G05B19/00

Abstract:
Provided is a visual axis direction detection device capable of obtaining a highly accurate visual axis direction detection result without performing a particular calibration for each of examinees. The device (100) includes: a feature calculation unit (160) which calculates as a reference position, a 3D position of the center of a face of an examinee whose visual axis direction is to be detected, from a 3D position of two face parts positioned symmetrically, and calculates as a feature position, a 3D position of the center of the right and left pupils of the examinee in the horizontal direction; a visual axis direction feature amount calculation unit (172) for calculating a shift amount of the feature position from the reference position in the horizontal direction as a visual axis direction feature amount; and a visual axis vector calculation unit (173) for calculating the visual axis direction of the examinee according to the visual axis direction feature amount.
Public/Granted literature
- US20090304232A1 VISUAL AXIS DIRECTION DETECTION DEVICE AND VISUAL LINE DIRECTION DETECTION METHOD Public/Granted day:2009-12-10
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