Top > Search of International Patents > PUPIL DETECTION METHOD, CORNEAL REFLEX DETECTION METHOD, FACIAL POSTURE DETECTION METHOD, AND PUPIL TRACKING METHOD

PUPIL DETECTION METHOD, CORNEAL REFLEX DETECTION METHOD, FACIAL POSTURE DETECTION METHOD, AND PUPIL TRACKING METHOD commons

Foreign code F130007773
Posted date Dec 12, 2013
Country WIPO
International application number 2013JP064511
International publication number WO 2013/176265
Date of international filing May 24, 2013
Date of international publication Nov 28, 2013
Priority data
  • P2012-120312 (May 25, 2012) JP
Title PUPIL DETECTION METHOD, CORNEAL REFLEX DETECTION METHOD, FACIAL POSTURE DETECTION METHOD, AND PUPIL TRACKING METHOD commons
Abstract

This pupil detection method is provided with: a step for photographing the face of a subject using a left camera (2A) and a right camera (2B) and acquiring an image

a step for extracting, from the image, one or more in-image candidate points representing candidates for a pupil of the subject

a step for extracting, with respect to a combination of in-image candidate points corresponding to the same point in a three-dimensional space, a point corresponding to the combination as an in-space candidate point

a step for selecting a pair of in-space candidate points from the extracted in-space candidate points and calculating the distance between the selected pair with regards to a plurality of pairs

a step for removing pairs of in-space candidate points for which the calculated distance is not within a predetermined range

and a step for determining one or more pairs of in-space candidate points from pairs that have not been removed, and determining that the pair of pupils of the subject is present at the corresponding positions.

  • 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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