Analysing the potential of adapting head-mounted eye tracker calibration to a new user

Fehringer, Benedict and Bulling, Andreas and Krüger, Antonio (2012) Analysing the potential of adapting head-mounted eye tracker calibration to a new user. In: Proceedings of the Symposium on Eye Tracking Research and Applications. ETRA '12 . ACM, New York, pp. 245-248. ISBN 978-1-4503-1221-9

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A key issue with state-of-the-art mobile eye trackers, particularly during long-term recordings in daily life, is the need for cumbersome and time consuming (re)calibration. To reduce this burden, in this paper we investigate the feasibility of adapting the calibration obtained for one user to another. Calibration adaptation is automatically performed using a light-weight linear translation. We compare three different methods to compute the translation: "multi-point", where all calibration-points are used, "1-point", and "0-point" that uses only an external parameter. We evaluate these methods in a 6-participant user study in a controlled laboratory setting by measuring the error in visual angle between the predicted gaze point and the true gaze point. Our results show that, averaged across all participants, the best adapted calibration is only 0.8° (mean) off the calibration obtained for that specific user. We also show the potential of the 1-point and 0-point methods compared to the time-consuming multi-point computation.

Item Type: Contribution in Book/Report/Proceedings
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qa75
Departments: Faculty of Science and Technology > School of Computing & Communications
ID Code: 57256
Deposited By: ep_importer_pure
Deposited On: 13 Aug 2012 08:43
Refereed?: Yes
Published?: Published
Last Modified: 01 Jan 2020 05:35

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