Real-time estimation of horizontal gaze angle by saccade integration using in-ear electrooculography

Hládek, Ľ., Porr, B. and Brimijoin, W. O. (2018) Real-time estimation of horizontal gaze angle by saccade integration using in-ear electrooculography. PLoS ONE, 13(1), e0190420. (doi:10.1371/journal.pone.0190420) (PMID:29304120) (PMCID:PMC5755791)

[img]
Preview
Text
155463.pdf - Published Version
Available under License Creative Commons Attribution.

4MB

Abstract

The manuscript proposes and evaluates a real-time algorithm for estimating eye gaze angle based solely on single-channel electrooculography (EOG), which can be obtained directly from the ear canal using conductive ear moulds. In contrast to conventional high-pass filtering, we used an algorithm that calculates absolute eye gaze angle via statistical analysis of detected saccades. The estimated eye positions of the new algorithm were still noisy. However, the performance in terms of Pearson product-moment correlation coefficients was significantly better than the conventional approach in some instances. The results suggest that in-ear EOG signals captured with conductive ear moulds could serve as a basis for light-weight and portable horizontal eye gaze angle estimation suitable for a broad range of applications. For instance, for hearing aids to steer the directivity of microphones in the direction of the user’s eye gaze.

Item Type:Articles
Additional Information:This work was supported by grants from the Oticon Foundation, the UK Medical Research Council [grant nos. U135097131 and MC_UU_00010/4], and the Chief Scientist Office (Government of Scotland).
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Brimijoin, Dr William and Porr, Dr Bernd and Hladek, Mr Lubos
Authors: Hládek, Ľ., Porr, B., and Brimijoin, W. O.
College/School:College of Medical Veterinary and Life Sciences > Institute of Health and Wellbeing > MRC/CSO Unit
Journal Name:PLoS ONE
Publisher:Public Library of Science
ISSN:1932-6203
ISSN (Online):1932-6203
Copyright Holders:Copyright © 2018 Hládek et al.
First Published:First published in PLoS ONE 13(1): e0190420
Publisher Policy:Reproduced under a Creative Commons License
Data DOI:10.17639/nott.334

University Staff: Request a correction | Enlighten Editors: Update this record