A New Gaze Estimation Method Considering External Light

A New Gaze Estimation Method Considering External Light

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 e...

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Main Authors: Jong Man Lee, Hyeon Chang Lee, Su Yeong Gwon, Dongwook Jung, Weiyuan Pan, Chul Woo Cho, Kang Ryoung Park, Hyun-Cheol Kim, Jihun Cha
Format: Article
Language:English
Published: MDPI AG 2015-03-01
Series:Sensors
Subjects:
gaze tracking system
corneal SR
external light
pupil movable area
Online Access:http://www.mdpi.com/1424-8220/15/3/5935
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spelling doaj-159022e028254215aa1a60c286ce4b2a2020-11-24T23:49:16ZengMDPI AGSensors1424-82202015-03-011535935598110.3390/s150305935s150305935A New Gaze Estimation Method Considering External LightJong Man Lee0Hyeon Chang Lee1Su Yeong Gwon2Dongwook Jung3Weiyuan Pan4Chul Woo Cho5Kang Ryoung Park6Hyun-Cheol Kim7Jihun Cha8Division of Electronics and Electrical Engineering, Dongguk University, 26 Pil-dong 3-ga, Jung-gu, Seoul 100-715, KoreaDivision of Electronics and Electrical Engineering, Dongguk University, 26 Pil-dong 3-ga, Jung-gu, Seoul 100-715, KoreaDivision of Electronics and Electrical Engineering, Dongguk University, 26 Pil-dong 3-ga, Jung-gu, Seoul 100-715, KoreaDivision of Electronics and Electrical Engineering, Dongguk University, 26 Pil-dong 3-ga, Jung-gu, Seoul 100-715, KoreaDivision of Electronics and Electrical Engineering, Dongguk University, 26 Pil-dong 3-ga, Jung-gu, Seoul 100-715, KoreaDivision of Electronics and Electrical Engineering, Dongguk University, 26 Pil-dong 3-ga, Jung-gu, Seoul 100-715, KoreaDivision of Electronics and Electrical Engineering, Dongguk University, 26 Pil-dong 3-ga, Jung-gu, Seoul 100-715, KoreaElectronics and Telecommunications Research Institute, 218 Gajeong-ro, Yuseong-gu, Daejeon 305-700, KoreaElectronics and Telecommunications Research Institute, 218 Gajeong-ro, Yuseong-gu, Daejeon 305-700, KoreaGaze 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.http://www.mdpi.com/1424-8220/15/3/5935gaze tracking systemcorneal SRexternal lightpupil movable area
collection DOAJ
language English
format Article
sources DOAJ
author Jong Man Lee
Hyeon Chang Lee
Su Yeong Gwon
Dongwook Jung
Weiyuan Pan
Chul Woo Cho
Kang Ryoung Park
Hyun-Cheol Kim
Jihun Cha
spellingShingle Jong Man Lee
Hyeon Chang Lee
Su Yeong Gwon
Dongwook Jung
Weiyuan Pan
Chul Woo Cho
Kang Ryoung Park
Hyun-Cheol Kim
Jihun Cha
A New Gaze Estimation Method Considering External Light
Sensors
gaze tracking system
corneal SR
external light
pupil movable area
author_facet Jong Man Lee
Hyeon Chang Lee
Su Yeong Gwon
Dongwook Jung
Weiyuan Pan
Chul Woo Cho
Kang Ryoung Park
Hyun-Cheol Kim
Jihun Cha
author_sort Jong Man Lee
title A New Gaze Estimation Method Considering External Light
title_short A New Gaze Estimation Method Considering External Light
title_full A New Gaze Estimation Method Considering External Light
title_fullStr A New Gaze Estimation Method Considering External Light
title_full_unstemmed A New Gaze Estimation Method Considering External Light
title_sort new gaze estimation method considering external light
publisher MDPI AG
series Sensors
issn 1424-8220
publishDate 2015-03-01
description 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.
topic gaze tracking system
corneal SR
external light
pupil movable area
url http://www.mdpi.com/1424-8220/15/3/5935
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