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Composing 6 DOF tracking systems for VR/AR

: Schwald, B.; Seibert, H.; Schnaider, M.


IEEE Computer Society:
Computer Graphics International 2004. Proceedings
Los Alamitos, Calif.: IEEE Computer Society Press, 2004
ISBN: 0-7695-2171-1
Computer Graphics International (CGI) <21, 2004, Crete>
Conference Paper
Fraunhofer IGD ()
virtual and augmented reality (VR/AR); interaction devices; tracking; hybrid tracking system; optical tracking system

This paper presents a concept for the composition of tracking systems in the context of Virtual and Augmented Reality (VR/AR) applications. Several independent 6 DOF tracking systems can be used simultaneously to accomplish the interaction requirements for a given application. The control unit for tracking systems, processing measurements with optional properties as time stamps and quality values is described as well as procedures for the coordinate system alignment of different tracking systems and the configuration of such a hybrid system. Considerations on the way accuracy errors might increase or decrease by combining tracking systems are included. The concept is motivated considering a medical AR system combining optical and electromagnetic tracking technology as example.