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Compensation of Head Movements in Mobile Eye-Tracking Data Using an Inertial Measurement Unit

Author

Editor

  • AJ Brush
  • Adrian Friday
  • Julie Kientz
  • Junehwa Song

Summary, in English

Analysis of eye movements recorded with a mobile eye-tracker is difficult since the eye-tracking data are severely affected by simultaneous head and body movements. Automatic analysis methods developed for remote-, and tower-mounted eye-trackers do not take this into account and are therefore not suitable to use for data where also head- and body movements are present. As a result, data recorded with a mobile eye-tracker are often analyzed manually.

In this work, we investigate how simultaneous recordings of eye- and head movements can be employed to isolate the motion of the eye in the eye-tracking data. We recorded eye-in-head movements with a mobile eye-tracker and head movements with an Inertial Measurement Unit (IMU). Preliminary results show that by compensating the eye-tracking data with the estimated head orientation, the standard deviation of the data during vestibular-ocular reflex (VOR) eye movements, was reduced from 8.0 to 0.9 in the vertical direction and from 12.9 to 0.6 in the horizontal direction. This suggests that a head compensation algorithm based on IMU data can be used to isolate the movements of the eye and therefore simplify the analysis of data recorded using a mobile eye-tracker.

Publishing year

2014

Language

English

Pages

1161-1167

Publication/Series

Proceedings of the 2014 ACM International Joint Conference on Pervasive and Ubiquitous Computing: Adjunct Publication

Document type

Conference paper

Publisher

Association for Computing Machinery (ACM)

Topic

  • Medical Engineering

Status

Published

ISBN/ISSN/Other

  • ISBN: 978-1-4503-3047-3