A new gaze estimation method considering external light

Jong Man Lee; Hyeon Chang Lee; Su Yeong Gwon; Dongwook Jung; Weiyuan Pan; Chul Woo Cho; Kang Ryoung Park; Hyun Cheol Kim; Jihun Cha

doi:10.3390/s150305935

A new gaze estimation method considering external light

Jong Man Lee, Hyeon Chang Lee, Su Yeong Gwon, Dongwook Jung, Weiyuan Pan, Chul Woo Cho, Kang Ryoung Park, Hyun Cheol Kim, Jihun Cha

Department of Electronics & Electrical Engineering

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Gaze tracking systems usually utilize near-infrared (NIR) lights and NIR cameras, and the performance of such systems is mainly affected by external light sources that include NIR components. This is ascribed to the production of additional (imposter) corneal specular reflection (SR) caused by the external light, which makes it difficult to discriminate between the correct SR as caused by the NIR illuminator of the gaze tracking system and the imposter SR. To overcome this problem, a new method is proposed for determining the correct SR in the presence of external light based on the relationship between the corneal SR and the pupil movable area with the relative position of the pupil and the corneal SR. The experimental results showed that the proposed method makes the gaze tracking system robust to the existence of external light.

Original language	English
Pages (from-to)	5935-5981
Number of pages	47
Journal	Sensors
Volume	15
Issue number	3
DOIs	https://doi.org/10.3390/s150305935
State	Published - 11 Mar 2015

Keywords

Corneal SR
External light
Gaze tracking system
Pupil movable area

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10.3390/s150305935

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title = "A new gaze estimation method considering external light",

abstract = "Gaze tracking systems usually utilize near-infrared (NIR) lights and NIR cameras, and the performance of such systems is mainly affected by external light sources that include NIR components. This is ascribed to the production of additional (imposter) corneal specular reflection (SR) caused by the external light, which makes it difficult to discriminate between the correct SR as caused by the NIR illuminator of the gaze tracking system and the imposter SR. To overcome this problem, a new method is proposed for determining the correct SR in the presence of external light based on the relationship between the corneal SR and the pupil movable area with the relative position of the pupil and the corneal SR. The experimental results showed that the proposed method makes the gaze tracking system robust to the existence of external light.",

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T1 - A new gaze estimation method considering external light

AU - Lee, Jong Man

AU - Lee, Hyeon Chang

AU - Gwon, Su Yeong

AU - Jung, Dongwook

AU - Pan, Weiyuan

AU - Cho, Chul Woo

AU - Park, Kang Ryoung

AU - Kim, Hyun Cheol

AU - Cha, Jihun

PY - 2015/3/11

Y1 - 2015/3/11

N2 - Gaze tracking systems usually utilize near-infrared (NIR) lights and NIR cameras, and the performance of such systems is mainly affected by external light sources that include NIR components. This is ascribed to the production of additional (imposter) corneal specular reflection (SR) caused by the external light, which makes it difficult to discriminate between the correct SR as caused by the NIR illuminator of the gaze tracking system and the imposter SR. To overcome this problem, a new method is proposed for determining the correct SR in the presence of external light based on the relationship between the corneal SR and the pupil movable area with the relative position of the pupil and the corneal SR. The experimental results showed that the proposed method makes the gaze tracking system robust to the existence of external light.

AB - Gaze tracking systems usually utilize near-infrared (NIR) lights and NIR cameras, and the performance of such systems is mainly affected by external light sources that include NIR components. This is ascribed to the production of additional (imposter) corneal specular reflection (SR) caused by the external light, which makes it difficult to discriminate between the correct SR as caused by the NIR illuminator of the gaze tracking system and the imposter SR. To overcome this problem, a new method is proposed for determining the correct SR in the presence of external light based on the relationship between the corneal SR and the pupil movable area with the relative position of the pupil and the corneal SR. The experimental results showed that the proposed method makes the gaze tracking system robust to the existence of external light.

KW - Corneal SR

KW - External light

KW - Gaze tracking system

KW - Pupil movable area

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A new gaze estimation method considering external light

Abstract

Keywords

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