Article
Version 2
Preserved in Portico This version is not peer-reviewed
A Non-inductive Magnetic Eye-Tracker: From Dipole Tracking to Gaze Retrieval
Version 1
: Received: 27 September 2022 / Approved: 28 September 2022 / Online: 28 September 2022 (12:30:28 CEST)
Version 2 : Received: 7 December 2022 / Approved: 8 December 2022 / Online: 8 December 2022 (11:02:26 CET)
Version 2 : Received: 7 December 2022 / Approved: 8 December 2022 / Online: 8 December 2022 (11:02:26 CET)
A peer-reviewed article of this Preprint also exists.
Biancalana, V.; Chessa, P. A Non-Inductive Magnetic Eye-Tracker: From Dipole Tracking to Gaze Retrieval. Instruments 2023, 7, 8. Biancalana, V.; Chessa, P. A Non-Inductive Magnetic Eye-Tracker: From Dipole Tracking to Gaze Retrieval. Instruments 2023, 7, 8.
Abstract
We analyze the information that can be retrieved from the tracking parameters produced by an innovative wearable eye tracker. The latter is based on a permanent-magnet marked corneal lens and by an array of magnetoresistive detectors that measure the magnetostatic field in several positions in the eye proximity. We demonstrate that, despite missing information due to the axial symmetry of the measured field, physiological constraints or measurement conditions make possible to infer complete eye-pose data. Angular precision and accuracy achieved with the current prototypical device are also assessed and briefly discussed. The results show that the instrumentation considered is suitable as a new, moderately invasive medical diagnostics for the characterization of ocular movements and associated disorders.
Keywords
Eye Tracking; Magnetic tracker; Magnetic Sensor; Sensor Array; eye motion; Donders' Law; Listing's law
Subject
Physical Sciences, Applied Physics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Commenter: Valerio Biancalana
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https://aip.scitation.org/doi/10.1063/5.0079779 (with OA preprint at http://arxiv.org/pdf/2111.12572)
https://www.mdpi.com/2410-390X/5/1/11 (Open Access)
https://www.mdpi.com/2410-390X/5/1/3 (Open Access)