The Perceptive Workbench: Toward Spontaneous and Natural Interaction in
Semi-Immersive Virtual Environments.
Bastian Leibe, Thad Starner, William Ribarsky, Zachary Wartell,David Krum,
Brad Singletary, and Larry Hodges.
Winner, Best Paper Award, IEEE VR2000.
Proceedings of IEEE VR2000, New Brunswick, NJ, March 2000. pp. 13-20.
The Perceptive Workbench enables a spontaneous, natural, and unimpeded
interface between the physical and virtual worlds. It uses vision-based
methods for interaction that eliminate the need for wired input devices
and wired tracking. Objects are recognized and tracked when placed on the
display surface. Through the use of multiple light sources, the object's
3D shape can be captured and inserted into the virtual interface. This
ability permits spontaneity since either preloaded objects or those objects
selected on the spot by the user can become physical icons. Integrated
into the same vision-based interface is the ability to identify 3D hand
position, pointing direction, and sweeping arm gestures. Such gestures
can enhance selection, manipulation, and navigation tasks. In this paper,
the Perceptive Workbench is used for augmented reality gaming and terrain
navigation applications, which demonstrate the utility and capability of
the interface.
Keywords: Augmented reality, gesture, 3D object reconstruction, object
recognition, computer vision, infrared, virtual reality
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