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Evaluation of corneal refraction in a model of a gaze tracking system.

Publication ,  Journal Article
Villanueva, A; Cabeza, R
Published in: IEEE transactions on bio-medical engineering
December 2008

The complexity of corneal refraction modeling complicates geometrical analysis of gaze tracking systems. The task can be accomplished in different ways by means of different approximations. Depending on the assumptions made, errors can arise and the accuracy of trackers can end up determined to an excessive degree by the hardware setup and subject parameters. In this study, keeping the hardware and eye model the same, we compare different methods for evaluation of corneal refraction. Our results show that the approximated methods are sensitive to the calibration of the system and less robust to noise. The nonapproximated method removes any dependency on setup and allows clear differentiation between hardware and subject's calibration.

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Published In

IEEE transactions on bio-medical engineering

DOI

EISSN

1558-2531

ISSN

0018-9294

Publication Date

December 2008

Volume

55

Issue

12

Start / End Page

2812 / 2822

Related Subject Headings

  • Retinoscopy
  • Refraction, Ocular
  • Models, Biological
  • Image Interpretation, Computer-Assisted
  • Humans
  • Eye Movements
  • Eye Movement Measurements
  • Corneal Topography
  • Cornea
  • Calibration
 

Citation

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Villanueva, A., & Cabeza, R. (2008). Evaluation of corneal refraction in a model of a gaze tracking system. IEEE Transactions on Bio-Medical Engineering, 55(12), 2812–2822. https://doi.org/10.1109/tbme.2008.2002152
Villanueva, Arantxa, and Rafael Cabeza. “Evaluation of corneal refraction in a model of a gaze tracking system.IEEE Transactions on Bio-Medical Engineering 55, no. 12 (December 2008): 2812–22. https://doi.org/10.1109/tbme.2008.2002152.
Villanueva A, Cabeza R. Evaluation of corneal refraction in a model of a gaze tracking system. IEEE transactions on bio-medical engineering. 2008 Dec;55(12):2812–22.
Villanueva, Arantxa, and Rafael Cabeza. “Evaluation of corneal refraction in a model of a gaze tracking system.IEEE Transactions on Bio-Medical Engineering, vol. 55, no. 12, Dec. 2008, pp. 2812–22. Epmc, doi:10.1109/tbme.2008.2002152.
Villanueva A, Cabeza R. Evaluation of corneal refraction in a model of a gaze tracking system. IEEE transactions on bio-medical engineering. 2008 Dec;55(12):2812–2822.

Published In

IEEE transactions on bio-medical engineering

DOI

EISSN

1558-2531

ISSN

0018-9294

Publication Date

December 2008

Volume

55

Issue

12

Start / End Page

2812 / 2822

Related Subject Headings

  • Retinoscopy
  • Refraction, Ocular
  • Models, Biological
  • Image Interpretation, Computer-Assisted
  • Humans
  • Eye Movements
  • Eye Movement Measurements
  • Corneal Topography
  • Cornea
  • Calibration