Shadow walking: An unencumbered locomotion technique for systems with under-floor projection
| Autor: | David J. Zielinski, Ryan P. McMahan, Rachael Brady |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Orientation (computer vision)
Computer science business.industry ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Virtual reality Tracking (particle physics) GeneralLiterature_MISCELLANEOUS Projection (mathematics) Gesture recognition Computer graphics (images) Shadow Computer vision Artificial intelligence business ComputingMethodologies_COMPUTERGRAPHICS Gesture |
| Zdroj: | VR |
| DOI: | 10.1109/vr.2011.5759456 |
| Popis: | When viewed from below, a user's feet cast shadows onto the floor screen of an under-floor projection system, such as a six-sided 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. |
| Databáze: | OpenAIRE |
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