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Publication Citation: Correction of Location and Orientation Errors in Electromagnetic Motion Tracking

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Author(s): John G. Hagedorn; Steven G. Satterfield; John T. Kelso; W. Austin; Judith E. Terrill; Adele P. Peskin;
Title: Correction of Location and Orientation Errors in Electromagnetic Motion Tracking
Published: August 01, 2007
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.
Conference: Presence: Teleoperators and Virtual Environments
Volume: 16
Issue: 4
Pages: pp. 352 - 366
Keywords: barycentric coordinates;electromagnetic tracker;immersive visualization;rotation interpolation;spherical interpolation;tracker calibration;virtual reality
Research Areas:
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