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2011
IEEE

Shadow walking: An unencumbered locomotion technique for systems with under-floor projection

8 years 3 months ago
Shadow walking: An unencumbered locomotion technique for systems with under-floor projection
When viewed from below, a user’s feet cast shadows onto the floor screen of an under-floor projection system, such as a sixsided CAVE. Tracking those shadows with a camera provides enough information for calculating a user’s ground-plane location, foot orientation, and footstep events. We present Shadow Walking, an unencumbered locomotion technique that uses shadow tracking to sense a user’s walking direction and step speed. Shadow Walking affords virtual locomotion by detecting if a user is walking in place. In addition, Shadow Walking supports a sidestep gesture, similar to the iPhone’s pinch gesture. In this paper, we describe how we implemented Shadow Walking and present a preliminary assessment of our new locomotion technique. We have found Shadow Walking provides advantages of being unencumbered, inexpensive, and easy to implement compared to other walking-in-place approaches. It also has potential for extended gestures and multi-user locomotion.
David J. Zielinski, Ryan P. McMahan, Rachel B. Bra
Added 22 Aug 2011
Updated 22 Aug 2011
Type Journal
Year 2011
Where VR
Authors David J. Zielinski, Ryan P. McMahan, Rachel B. Brady
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