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Conference Paper

LibGaze: Real-time gaze-tracking of freely moving observers for wall-sized displays

MPS-Authors
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Herholz,  S
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Chuang,  LL
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Tanner,  TG
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Bülthoff,  HH
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Fleming,  RW
Research Group Computational Vision and Neuroscience, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Max Planck Institute for Biological Cybernetics, Max Planck Society;

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VMV-2008-Herholz.pdf
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Citation

Herholz, S., Chuang, L., Tanner, T., Bülthoff, H., & Fleming, R. (2008). LibGaze: Real-time gaze-tracking of freely moving observers for wall-sized displays. In O. Deussen, & D. Keim (Eds.), Vision, modeling, and visualization 2008 (pp. 101-110). Heidelberg, Germany: Akademische Verlags-Gesellschaft AKA.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-C6C5-E
Abstract
We present a mobile system for tracking the gaze of an observer in real-time as they move around freely and interact with a wall-sized display. The system
combines a head-mounted eye tracker with a mo-
tion capture system for tracking markers attached
to the eye tracker. Our open-source software library
libGaze provides routines for calibrating the sys-
tem and computing the viewer’s position and gaze
direction in real-time. The modular architecture of
our system supports simple replacement of each of
the main components with alternative technology.
We use the system to perform a psychophysical
user-study, designed to measure how users visually
explore large displays. We find that observers use
head move- ments during gaze shifts, even when
these are well within the range that can be com-
fortably reached by eye movements alone. This
suggests that free movement is important in nor-
mal gaze behaviour,motivating further applications
in which the tracked user is free to move.