Title:
CORNEA REFLECTION POSITION DETECTION DEVICE, VISUAL LINE DETECTION DEVICE, AND CORNEA REFLECTION POSITION DETECTION METHOD
Document Type and Number:
Japanese Patent JP2019118548
Kind Code:
A
Abstract:
To detect a cornea reflection region efficiently and accurately.SOLUTION: A cornea reflection position detection device includes: a pupil detection part for detecting a central position of the pupil from an image of the eyeball of a subject; and a cornea reflection detection part for detecting a cornea reflection region from the image. The cornea reflection detection part detects whether or not a high brightness region having the brightness of a brightness threshold or higher is present in the image by gradually enlarging a detection object region with the central position of the pupil as a reference, and determines that the high brightness region is the cornea reflection region when the high brightness region is detected.SELECTED DRAWING: Figure 3
Inventors:
HAKOJIMA SHUJI
Application Number:
JP2017254816A
Publication Date:
July 22, 2019
Filing Date:
December 28, 2017
Export Citation:
Assignee:
JVC KENWOOD CORP
International Classes:
A61B3/113
Domestic Patent References:
| JP2008029702A | 2008-02-14 | |||
| JPH105178A | 1998-01-13 | |||
| JPH08287216A | 1996-11-01 | |||
| JP2004105590A | 2004-04-08 | |||
| JPH06138376A | 1994-05-20 | |||
| JP2017131446A | 2017-08-03 |
Foreign References:
| WO2017217026A1 | 2017-12-21 | |||
| US20110182472A1 | 2011-07-28 |
Attorney, Agent or Firm:
Sakai International Patent Office