Interaction and Co-located Collaboration in Large Projection-Based Virtual Environments

Abstract

Abstract.Conventional interaction in large screen projection-based display systems only allows a "master user" to have full control over the application. We have developed the VRGEO Demonstrator application based on an interaction paradigm that allows multiple users to share large projection-based environment displays for co-located collaboration. Following SDG systems we introduce a collaborative interface based on tracked PDAs and integrate common device metaphors into the interface to improve user's learning experience of the virtual environment system. The introduction of multiple workspaces in a virtual environment allows users to spread out data for analysis making use of the large screen space more effectively. Two extended informal evaluation sessions with application domain experts and demonstrations of the system show that our collaborative interaction paradigm improves the learning experience and interactivity of the virtual environment.

Multiview 3D Pose Estimation of a Wand for Human-Computer Interaction

“…The need for a pointing device as an interaction item is underscored in [4], where a PDA is visually tracked to emulate a wand in an augmented reality environment. Multiview tracking of markers on the PDA provides pose information for augmenting the virtual wand, whereas this work employs a physical wand.…”

“…3 an overview of the proposed method is provided, which is analytically formulated in Sec. 4. In Sec.…”

MIXING VIRTUAL REALITY AND 2D VISUALIZATION - Using Virtual Environments as Visual 3D Information Systems for Discussion of Data from Geo- and Environmental Sciences

“…The Virtual Environments group at the Fraunhofer Society in Birlinghoven has developed several examples of the use of tracked PDAs ( (Simon et al, 2005), (Holtkämper et al, 2007)) and Tablet PCs (Holtkämper et al, 2007) in virtual environments. This approach has been mainly used for system control, but could also be used to show additional 2D information which would, due to the small displays, only be available to very few people.…”