System Calibration of Visible-Spectrum Gaze Tracker With Linear Models

Wen Chung Kao; Shao Ching Lin; Kai Dun Hong; Yi Chin Chiu; Ji Lun Ho

doi:10.1109/TCE.2025.3534823

System Calibration of Visible-Spectrum Gaze Tracker With Linear Models

Wen Chung Kao^*, Shao Ching Lin, Kai Dun Hong, Yi Chin Chiu, Ji Lun Ho

^*Corresponding author for this work

Department of Electrical Engineering

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

Abstract

Calibration for infrared-based gaze trackers, which maps the estimated iris center locations in the image to monitor coordinates, is generally achieved with second-order polynomials. However, calibration performance tends to be poor for visible-spectrum gaze trackers (VSGT) due to the absence of corneal reflections from infrared light sources. This paper introduces a novel calibration method for VSGT that utilizes linear models based on the polar coordinate system. Experimental results demonstrate that false gaze data can be automatically filtered out through linear regression, significantly enhancing system accuracy.

Original language	English
Journal	IEEE Transactions on Consumer Electronics
DOIs	https://doi.org/10.1109/TCE.2025.3534823
Publication status	Accepted/In press - 2025

Keywords

calibration
eye tracking
human-machine interface
linear model
Visible-spectrum gaze tracker

ASJC Scopus subject areas

Media Technology
Electrical and Electronic Engineering

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10.1109/TCE.2025.3534823

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title = "System Calibration of Visible-Spectrum Gaze Tracker With Linear Models",

abstract = "Calibration for infrared-based gaze trackers, which maps the estimated iris center locations in the image to monitor coordinates, is generally achieved with second-order polynomials. However, calibration performance tends to be poor for visible-spectrum gaze trackers (VSGT) due to the absence of corneal reflections from infrared light sources. This paper introduces a novel calibration method for VSGT that utilizes linear models based on the polar coordinate system. Experimental results demonstrate that false gaze data can be automatically filtered out through linear regression, significantly enhancing system accuracy.",

keywords = "calibration, eye tracking, human-machine interface, linear model, Visible-spectrum gaze tracker",

author = "Kao, {Wen Chung} and Lin, {Shao Ching} and Hong, {Kai Dun} and Chiu, {Yi Chin} and Ho, {Ji Lun}",

note = "Publisher Copyright: {\textcopyright} 1975-2011 IEEE.",

year = "2025",

doi = "10.1109/TCE.2025.3534823",

language = "English",

journal = "IEEE Transactions on Consumer Electronics",

issn = "0098-3063",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

TY - JOUR

T1 - System Calibration of Visible-Spectrum Gaze Tracker With Linear Models

AU - Kao, Wen Chung

AU - Lin, Shao Ching

AU - Hong, Kai Dun

AU - Chiu, Yi Chin

AU - Ho, Ji Lun

PY - 2025

Y1 - 2025

N2 - Calibration for infrared-based gaze trackers, which maps the estimated iris center locations in the image to monitor coordinates, is generally achieved with second-order polynomials. However, calibration performance tends to be poor for visible-spectrum gaze trackers (VSGT) due to the absence of corneal reflections from infrared light sources. This paper introduces a novel calibration method for VSGT that utilizes linear models based on the polar coordinate system. Experimental results demonstrate that false gaze data can be automatically filtered out through linear regression, significantly enhancing system accuracy.

AB - Calibration for infrared-based gaze trackers, which maps the estimated iris center locations in the image to monitor coordinates, is generally achieved with second-order polynomials. However, calibration performance tends to be poor for visible-spectrum gaze trackers (VSGT) due to the absence of corneal reflections from infrared light sources. This paper introduces a novel calibration method for VSGT that utilizes linear models based on the polar coordinate system. Experimental results demonstrate that false gaze data can be automatically filtered out through linear regression, significantly enhancing system accuracy.

KW - calibration

KW - eye tracking

KW - human-machine interface

KW - linear model

KW - Visible-spectrum gaze tracker

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DO - 10.1109/TCE.2025.3534823

M3 - Article

AN - SCOPUS:85216873020

SN - 0098-3063

JO - IEEE Transactions on Consumer Electronics

JF - IEEE Transactions on Consumer Electronics

ER -

System Calibration of Visible-Spectrum Gaze Tracker With Linear Models

Abstract

Keywords

ASJC Scopus subject areas

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