In a pupil detection apparatus, based on a calculated value of red-eye occurrence intensity
that is relative brightness of brightness within a first pupil image detected by a pupil detector …

(57) ABSTRACT A pupil detection device and a pupil detection method, Which are capable
of stably detecting the pupil by actively using information of cornea-re? ected image even …

A pupil detecting apparatus includes a first detector configured to binarize an image
including an eye region according to brightness values and detect a pupil region from the …

The present disclosure provides a pupil tracking device that includes at least one active light
Source emitting light toward an eyeball to form a positioning reference point. The present …

(57) Pupil candidate detection unit for detecting positions of pupil candidates in an eye
image; and luminance difference calculation unit for obtaining a difference between a maxi …

A line-of-sight detection apparatus includes first and second cameras each for acquiring an
image of a region including at least an eye. The first and second cameras are arranged so …

The present invention discloses a portable pupil detection device with multiband stimulating
light and infrared illumi nation, which comprises at least one pupil detection module for …

A pupil detection light source device includes an aperture disposed to face a subject to allow
light from a pupil of the subject to pass therethrough, an illumination light for obtaining a light …

This invention is provided with: a light source; a light scanning mirror; a measurement
mechanism for measuring a change in the intensity of light reflected from an eyeball as time …

(57) ABSTRACT A pupil detection device includes a camera, a light source disposed at the
camera, an optical system, and an image processing system, which are disposed so that the …