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)

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: Hladek, Mr Lubos and Porr, Dr Bernd and Brimijoin, Dr William

Creator Roles

Hládek, L.: Data curation
Hládek, Ľ.: Conceptualization, Formal analysis, Investigation, Methodology, Writing – original draft
Porr, B.: Conceptualization, Funding acquisition, Investigation, Methodology, Resources, Software, Supervision, Writing – review and editing
Brimijoin, W. O.: Conceptualization, Funding acquisition, Investigation, Methodology, Project administration, Resources, Supervision, Writing – review and editing

• Authors: Hládek, Ľ., Porr, B., and Brimijoin, W. O.
• College/School: College of Medical Veterinary and Life Sciences > School of Health & Wellbeing > MRC/CSO SPHSU
• 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