Journal
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS
Volume 28, Issue 3, Pages 1597-1607Publisher
IEEE COMPUTER SOC
DOI: 10.1109/TVCG.2020.3019700
Keywords
Position measurement; Heuristic algorithms; Coils; Current measurement; Robot sensing systems; Time measurement; Tracking; Electromagnetic motion tracking system; motion capture; error analysis; polhemus systems
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Funding
- Norwegian University of Science and Technology (NTNU)
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This article analyzes the error in position measurement of the Polhemus tracking system caused by linearization under sensor movement. The formulas to estimate this error in terms of the sensor position and speed are derived and verified through numerical simulations.
Error analysis of electromagnetic motion tracking systems is of growing interest to many researchers. Under sensor movement, it is logical to presume that the error in position and orientation measurements will increase due to the linearization used in the algorithms, among other reasons. In this article, we analyze theoretically the error, that results from linearization, in position measurement of the Polhemus tracking system for a moving sensor. We derive formulas to estimate this error in terms of the sensor position and speed. Then, we verify these formulas by numerical simulations.
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