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A Methodology for Capturing Joint Visual Attention Using Mobile Eye-Trackers
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A model-based method with geometric solutions for gaze correction in eye-tracking.

Xiu Juan Zheng1, Zhan Heng Li1, Xin Yi Chun1

  • 1College of Electrical Engineering, Sichuan University, Chengdu 610065, China.

Mathematical Biosciences and Engineering : MBE
|April 3, 2020
PubMed
Summary

This study introduces a geometric model to correct eye-tracking data deviations caused by myopia and strabismus. The method effectively reduces errors, improving gaze estimation accuracy for individuals with these eye conditions.

Keywords:
correctioneye trackingeye-ball modelgaze pointsmyopia and strabismus

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Area of Science:

  • Biomedical Engineering
  • Ophthalmology
  • Computer Vision

Background:

  • Eye diseases like myopia and strabismus cause eyeball distortions.
  • These distortions lead to significant deviations in eye-tracking data accuracy.

Purpose of the Study:

  • To propose a model-based method using geometric solutions for gaze correction.
  • To address and reduce deviations in eye-tracking data caused by specific eye conditions.

Main Methods:

  • Developed a model-based approach incorporating geometric solutions for gaze correction.
  • Analyzed gaze point deviations using individual eyeball models accounting for myopia and strabismus.
  • Derived integrated geometric solutions for various scenarios, including combined myopia and strabismus.

Main Results:

  • The proposed method effectively reduces deviations in estimated gaze points.
  • Demonstrated the capability to correct modeling errors inherent in eye-tracking systems.
  • Experimental results confirm the method's efficacy in improving gaze accuracy.

Conclusions:

  • The model-based geometric method offers a robust solution for gaze correction in eye-tracking.
  • This approach has the potential for broad application in correcting eye-tracking data for diverse populations with eye diseases.
  • Presents a simple yet powerful technique for enhancing the reliability of eye-tracking technology.