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Correction of Location and Orientation Errors in Electromagnetic Motion Tracking

Published

Author(s)

John G. Hagedorn, Steven G. Satterfield, John T. Kelso, W. Austin, Judith E. Terrill, Adele Peskin

Abstract

We describe a method for calibrating an electromagnetic motion tracking device. Algorithms for correcting both location and orientation are presented. In particular, we use a method for interpolating rotation corrections at scattered data points that has not previously been used in this context. This method, unlike previous methods, is rooted in the geometry of the space of rotations. We give results showing large improvements in both location and orientation errors. The methods are shown to impose a minimal computational burden.
Volume
16
Issue
4
Conference Location
, USA
Conference Title
Presence: Teleoperators and Virtual Environments

Keywords

barycentric coordinates, electromagnetic tracker, immersive visualization, rotation interpolation, spherical interpolation, tracker calibration, virtual reality

Citation

Hagedorn, J. , Satterfield, S. , Kelso, J. , Austin, W. , Terrill, J. and Peskin, A. (2007), Correction of Location and Orientation Errors in Electromagnetic Motion Tracking, Presence: Teleoperators and Virtual Environments, , USA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=150405 (Accessed October 27, 2021)
Created July 31, 2007, Updated October 12, 2021