Selected
Readings in Vision and Graphics
edited by Luc Van Gool, Gábor
Székely, Markus Gross, Bernt Schiele
Volume 68
Exploring
Visuo-Haptic
Augmented Reality for Training
2011. XVI, 180 pages. EUR 64,00
ISBN 978-3-86628-403-6
Computer based training has been intensively studied
in the last decades and its application in different domains became highly
popular. Current systems, however, only provide a fully simulated environment
in which the training takes place. Their application is therefore limited by
the complexity of the simulated scene or by the capability of the underlying
hardware.
A concept which can be used to alleviate these
problems is augmented reality (AR). Here, a computer generated environment is
combined with the real one. While the definition of AR includes augmentation of
several modalities, the term still mainly refers to a mere visual augmentation.
A visuo-haptic augmented reality therefore extends the basic concept by
providing additional haptic sensations from the virtual environment to the
user. This allows a user to not only see the virtual world, but in addition to
touch it, making more natural interactions possible.
In this thesis we investigated visuo-haptic AR and its
feasibility to be used in training frameworks. We focused on the fidelity of
the AR illusion and the performed research can be divided into different
branches: The visuo-haptic augmented reality system itself, the perception
within the environment, and the application in different demonstrator systems.
Main contributions are the accurate calibration of the
haptic interface, the development of a flexible distributed visuo-haptic AR
framework, the improvement of visual depth perception by incorporating dynamic
shadows and correct handling of occlusions, and an investigation of
visuo-haptic perception of compliant objects in AR systems.
About the author:
Benjamin Knoerlein studied computational visualistics at the University of
Koblenz-Landau, Koblenz,
Germany, in 2005. From 2005-2010, he was research assistant and Ph.D. student
at the Computer Vision Laboratory at ETH Zurich, with Prof. Dr. Gábor Székely.
He received his Ph.D. in Computer Science (Dr. sc. ETH Zurich) from ETH Zurich
for his work on visuo-haptic Augmented Reality for training.
Keywords: Augmented Reality, Visuo-Haptic Feedback, Haptic Interfaces, Calibration,
Registration, Delays, Visual Perception, computer-based Training
.
Reihe
" Selected Readings in Vision and Graphics " im Hartung-Gorre
Verlag
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