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Proceedings Paper

Single-camera system for optically tracking freehand motion in 3D: experimental implementation and evaluation
Author(s): Mark K. Lee; H. Neale Cardinal; Aaron Fenster
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Paper Abstract

A single camera optical tracking system has been implemented to track the freehand motion of an object in 3D. The system consists of a single standard NTSC video camera and a frame grabber that is utilized to digitize the image of a target plate with four non-collinear fiducial marks. The tracking algorithm is based on texture mapping to determine the rotation and translation of the plate (and hence object) from the images of four fiducial marks. Utilizing a SGI VW320 workstation (with integrated frame grabber) and a CCD video camera, tracking accuracy of better than 0.1 mm for object velocity of 4.0 cm/s was achievable at full video frame rate for all directions.

Paper Details

Date Published: 28 May 2001
PDF: 12 pages
Proc. SPIE 4319, Medical Imaging 2001: Visualization, Display, and Image-Guided Procedures, (28 May 2001); doi: 10.1117/12.428043
Show Author Affiliations
Mark K. Lee, John P. Robarts Research Institute and Univ. of Western Ontario (Canada)
H. Neale Cardinal, John P. Robarts Research Institute (Canada)
Aaron Fenster, John P. Robarts Research Institute and Univ. of Western Ontario (Canada)


Published in SPIE Proceedings Vol. 4319:
Medical Imaging 2001: Visualization, Display, and Image-Guided Procedures
Seong Ki Mun, Editor(s)

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