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GAZE POINT DETECTION METHOD AND GAZE POINT DETECTION DEVICE

Foreign code F120006632
File No. 9045N-EB48,S2010-1073
Posted date May 17, 2012
Country WIPO
International application number 2011JP068164
International publication number WO 2012/020760
Date of international filing Aug 9, 2011
Date of international publication Feb 16, 2012
Priority data
  • P2010-178782 (Aug 9, 2010) JP
Title GAZE POINT DETECTION METHOD AND GAZE POINT DETECTION DEVICE
Abstract A gaze point detection device (1) is provided with two stereo cameras (2a, 2b) for capturing a face image of a subject (A), light sources (3a, 3b) provided on the outside of apertures (9a, 9b) of the stereo cameras (2a, 2b), control circuits (4, 5, 6), and an image processor (7). The image processor (7) calculates, on the basis of the face image, a vector (r) to a pupil from a cornea reflection point of the subject (A) in a plane perpendicular to a reference line of the stereo cameras (2a, 2b). The image processor (7) uses a function (f1) to calculate an angle (.theta.) of a line of sight of the subject (A) with respect to each of the reference lines and on the basis of the vector (r). The image processor (7) detects the gaze point (Q) of the subject (A) on a display screen by correcting the function (f1) and calculating the directions of the lines of sight calculated for the two stereo cameras (2a, 2b), in such a way that the directions of the lines of sight become close.
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY
  • Inventor
  • EBISAWA Yoshinobu
IPC(International Patent Classification)
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