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Monocular Depth Estimation using Vestibulo-ocular Reflex

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Forthcoming
Publication date6/03/2019
Host publicationEleventh edition of the ACM Symposium on Eye Tracking Research & Applications (ETRA 2019)
PublisherACM
Original languageEnglish
EventEleventh edition of the ACM Symposium on Eye Tracking Research & Applications (ETRA 2019) - Denver, Denver, United States
Duration: 25/06/2019 → …
http://etra.acm.org/2019/

Conference

ConferenceEleventh edition of the ACM Symposium on Eye Tracking Research & Applications (ETRA 2019)
Abbreviated titleETRA'19
CountryUnited States
CityDenver
Period25/06/19 → …
Internet address

Conference

ConferenceEleventh edition of the ACM Symposium on Eye Tracking Research & Applications (ETRA 2019)
Abbreviated titleETRA'19
CountryUnited States
CityDenver
Period25/06/19 → …
Internet address

Abstract

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 sta- bilises 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 anal- ysis 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 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.