EyeInfo Research Group

Article published on Universal Access in the Information Society
Volume: 8
Issue: 4
Date: Nov. 2009
Publisher: Springer-Verlag
ISBN/ISSN: 1615-5289 / 1615-5297
Pages: 241-257
DOI Bookmark: 10.1007/s10209-009-0149-0

Arantxa Villanueva, Public University of Navarre
Gintautas Daunys, Siauliai University
Dan Witzner Hansen, IT University of Copenhagen
Martin Böhme, University of Lübeck
Rafael Cabeza, Public University of Navarre
André Meyer, University of Lübeck
Erhardt Barth, University of Lübeck

This paper presents a principled analysis of various combinations of image features to determine their suitability for remote eye tracking. It begins by reviewing the basic theory underlying the connection between eye image and gaze direction. Then a set of approaches is proposed based on different combinations of well-known features and their behaviour is evaluated, taking into account various additional criteria such as free head movement, and minimum hardware and calibration requirements. The paper proposes a final method based on multiple glints and the pupil centre; the method is evaluated experimentally. Future trends in eye tracking technology are also discussed.



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