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2000
Conference Paper
Titel
Unencumbered interaction in display environments with extended working volume
Abstract
The paper gives an overview of wireless input systems and corresponding interaction techniques. We investigate the use of wireless input systems for immersive interaction in a large scale virtual environment displayed on a 6.4 m×2 m stereoscopic projection system. The system is used to present a complete car body at full scale, allowing users to walk up to 6 m in front of the vim object. The working volume needed for immersive interaction in this scenario is much larger than that typically realized by a HMD or CAVE making the use of cable bound devices problematic. Interactions realized in this environment include: Accurate head tracking to allow high quality undistorted stereoscopic rendering at natural scale. Head tracking for navigation as intuitive interaction by walking around. Positioning the car on the ground. Menu selection for different preselected models, assemblies or environments. Control of the virtual lighting situation. For head tracking a cluster of comm ercially available optical trackers with a single passive reflective target is used. For manual interaction wireless button devices with inertial sensors for acceleration and spin have been built. The application of these devices and the combination of input channels in different interactions is presented.