Invention Grant
US08406479B2 Visual axis direction detection device and visual line direction detection method 有权
视轴方向检测装置和视线方向检测方法

  • 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
  • Application No.: US12373582
    Application Date: 2007-07-13
  • Publication No.: US08406479B2
    Publication 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
Visual axis direction detection device and visual line direction detection method
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.
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