Monocular gaze depth estimation using the vestibulo-ocular reflex

Mardanbegi, D. and Clarke, C. and Gellersen, H. (2019) Monocular gaze depth estimation using the vestibulo-ocular reflex. In: Proceedings - ETRA 2019. Eye Tracking Research and Applications Symposium (ETRA) . ACM, New York. ISBN 9781450367097

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Abstract

Gaze depth estimation presents a challenge for eye tracking in 3D. This work investigates a novel approach to the problem based on eye movement mediated by the vestibulo-ocular reflex (VOR). VOR stabilises gaze on a target during head movement, with eye movement in the opposite direction, and the VOR gain increases the closer the fixated target is to the viewer. We present a theoretical analysis of the relationship between VOR gain and depth which we investigate with empirical data collected in a user study (N=10). We show that VOR gain can be captured using pupil centres, and propose and evaluate a practical method for gaze depth estimation based on a generic function of VOR gain and two-point depth calibration. The results show that VOR gain is comparable with vergence in capturing depth while only requiring one eye, and provide insight into open challenges in harnessing VOR gain as a robust measure.

Item Type:
Contribution in Book/Report/Proceedings
Additional Information:
© ACM, 2019. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in ETRA '19 Proceedings of the 11th ACM Symposium on Eye Tracking Research & Applications http://doi.acm.org/10.1145/3314111.3319822
ID Code:
136050
Deposited By:
Deposited On:
01 Oct 2019 14:20
Refereed?:
Yes
Published?:
Published
Last Modified:
20 Sep 2020 06:46