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John Hollerbach
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Publisher: Journals Gateway
Presence: Teleoperators and Virtual Environments (2002) 11 (3): 247–258.
Published: 01 June 2002
Abstract
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Turning strategies on the Sarcos Treadport, a linear treadmill locomotion interface, are developed and compared in a tight maneuvering task. A rate control strategy employing sidestep is compared to a proportional control strategy employing head gaze and torso trigger. The maneuvering task involves walking down a narrow corridor and avoiding obstacles that are placed at different separations to change the task difficulty. The performance metric was the number of times a subject collided with the obstacles or the corridor's walls. Traversal time and traversal distance were also characterized. The proportional control strategy was clearly found to permit more-precise maneuvering.