EyeInfo Research Group

Paper published in the 6th IEEE Workshop on Applications of Computer Vision (WACV 2002)
Location: Orlando, FL, USA
Date: Dec. 2002
Publisher: IEEE Computer Society
ISBN/ISSN: 0-7695-1858-3
Pages: 132-136
DOI Bookmark: 10.1109/ACV.2002.1182170

Authors:
Dan Witzner Hansen, IT University of Copenhagen
John Paulin Hansen, IT University of Copenhagen
Mads Niels, IT University of Copenhagen
Mikkel B. Stegmann, Technical University of Denmark

Abstract:
We propose a non-intrusive eye tracking system intended for the use of everyday gaze typing using web cameras. We argue that high precision in gaze tracking is not needed for on-screen typing due to natural language redundancy. This facilitates the use of low-cost video components for advanced multi-modal interactions based on video tracking systems. Robust methods are needed to track the eyes using web cameras due to the poor image quality. A real-time tracking scheme using a mean-shift color tracker and an Active Appearance Model of the eye is proposed. It is possible from this model to infer the state of the eye such as eye corners and the pupil location under scale and rotational changes.

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