Pupil detection device

YH Huang, YF Lee, MT Kao, MH Hsieh… - US Patent App. 13 …, 2014 - Google Patents
A pupil detection device includes an active light source, an image sensor and a processing
unit. The active light source emits light toward an eyeball. The image sensor captures at …

Pupil detection device

YH Huang, MT Kao, YF Lee, EF Hsu, MH Hsieh… - US Patent …, 2016 - Google Patents
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 …

Eye detecting device and methods of detecting pupil

YH Huang - US Patent App. 14/478,517, 2015 - Google Patents
An eye detecting device includes an optical assembly, an image sensor and an arithmetic
unit. The optical assembly provides a plurality of incident lights. The incident lights enter into …

Portable pupil detection device with multiband stimulating light and infrared illumination

M Ou-Yang, JC Chiou, ML Ko, TW Huang… - US Patent App. 14 …, 2015 - Google Patents
The present invention discloses a portable pupil detection device with multiband stimulating
light and infrared illumination, which comprises at least one pupil detection module for …

Pupil detecting apparatus and pupil detecting method

YS Kim, SB Lee, DH Seok - US Patent App. 14/520,243, 2015 - Google Patents
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 …

Pupil detection device and pupil detection method

S Tsukizawa, K Oka - US Patent 8,810,642, 2014 - Google Patents
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 …

Pupil detection system, gaze detection system, pupil detection method, and pupil detection program

Y Ebisawa - US Patent 10,499,808, 2019 - Google Patents
A pupil detection system according to an embodiment includes a vector calculation unit
configured to calculate a plurality of candidate vectors each connecting a corneal sphere …

Safe eye detection

KY Ng, J Fouquet, JS Wenstrand - US Patent 7,430,365, 2008 - Google Patents
An eye detection system for safe detection of the eye positions of a subject estimates the
distance from the eye detection system to the subject and reduces the power level of at least …

Safe eye detection

KY Ng, J Fouquet, JS Wenstrand - US Patent 7,695,138, 2010 - Google Patents
An eye detection system for safe detection of the eye positions of a subject estimates the
distance from the eye detection system to the subject and reduces the power level of at least …

Method and system for determining gaze direction in a pupil detection system

S Venkatesh - US Patent 7,580,545, 2009 - Google Patents
A detector captures one or more images of the face, eyes, or pupils of a person using light
propagating at two or more angles of incidence with respect to the optical axis of the …