Title:
CORNEAL REFLECTION DETECTING DEVICE, VISUAL LINE DETECTING DEVICE, CORNEAL REFLECTION DETECTING METHOD AND CORNEAL REFLECTION DETECTING PROGRAM
Document Type and Number:
Japanese Patent JP2021099664
Kind Code:
A
Abstract:
To provide a corneal reflection detecting device, a visual line detecting device, a corneal reflection detecting method and a corneal reflection detecting program that easily and precisely detect the position of a corneal reflection.SOLUTION: In a visual line detecting device 100, a corneal reflection detecting device 70: emits first light to an eyeball of a subjected person with arrangement in such a way that the emitting position of a light source and the imaging position of an imaging unit satisfy a first positional relation, picks up, by the imaging unit, an image of the eyeball of the subjected person to whom the first light is being emitted, and generates first image data; emits second light to the eyeball of the subjected person with arrangement in such a way that the emitting position of the light source and the imaging position of the imaging unit satisfy a second positional relation, picks up, by the imaging unit, the image of the eyeball of the subjected person to whom the second light is being emitted, and generates second image data; executes a brightness arithmetic processing relating to the brightness between corresponding pixels, between a pixel forming the first image data and a pixel forming the second image data; and estimates the position of a corneal reflection at the eyeball of the subjected person on the basis of the arithmetic processing result.SELECTED DRAWING: Figure 2
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Inventors:
HAKOJIMA SHUJI
Application Number:
JP2019231141A
Publication Date:
July 01, 2021
Filing Date:
December 23, 2019
Export Citation:
Assignee:
JVC KENWOOD CORP
International Classes:
A61B3/113; G06T7/70
Attorney, Agent or Firm:
Sakai International Patent Office