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Proceedings Paper

Measurement and calibration of static distortion of position data from 3D trackers
Author(s): Steve T. Bryson
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Paper Abstract

Three-dimensional trackers are becoming increasingly important as user inputs in interactive computer systems. These trackers output the three-dimensional position, and often the orientation, of a sensor in space. The three-dimensional tracking is often, however, highly distorted and inaccurate. The purpose of this paper is to discuss methods for the measurement and characterization of the static distortion of the position data. When the distortion is constant, various methods can be used to calibrate the data from the tracker to increase accuracy. Several preliminary methods are discussed in this paper, including polynomial and weighted lookup methods. The measurement and calibration methods are applied to the Polhemus electromagnetic tracking system but are applicable to tracking systems based on other technologies.

Paper Details

Date Published: 30 June 1992
PDF: 12 pages
Proc. SPIE 1669, Stereoscopic Displays and Applications III, (30 June 1992); doi: 10.1117/12.60417
Show Author Affiliations
Steve T. Bryson, NASA Ames Research Ctr. (United States)


Published in SPIE Proceedings Vol. 1669:
Stereoscopic Displays and Applications III
John O. Merritt; Scott S. Fisher, Editor(s)

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