Evaluation of rotation correction techniques for electromagnetic position tracking systems

Authors:
Volodymyr Kindratenko;Angela Bennett
Affiliations:
National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Urbana, IL;National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Urbana, IL
Venue:
EG VE'00 Proceedings of the 6th Eurographics conference on Virtual Environments
Year:
2000

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Abstract

Electromagnetic position tracking devices are an integral part of many modern virtual reality systems. However, they have an inherent accuracy problem due to the dependence on the local electromagnetic field that can be easily distorted by a presence of magnetically active elements near the tracker's transmitter or receiver. Several analytical techniques have been proposed to overcome this limitation, however none of them is particularly good with the correction of rotation. In this work, we investigate various rotation correction algorithms in an attempt to identify the one that is most accurate and reliable.