Single-camera system for optically tracking freehand motion in 3D: experimental implementation and evaluation

Mark K. Lee; H. Neale Cardinal; Aaron Fenster

doi:10.1117/12.428043

28 May 2001 Single-camera system for optically tracking freehand motion in 3D: experimental implementation and evaluation

Mark K. Lee, H. Neale Cardinal, Aaron Fenster

Author Affiliations +

Proceedings Volume 4319, Medical Imaging 2001: Visualization, Display, and Image-Guided Procedures; (2001) https://doi.org/10.1117/12.428043
Event: Medical Imaging 2001, 2001, San Diego, CA, United States

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.

Citation Download Citation

Mark K. Lee, H. Neale Cardinal, and Aaron Fenster "Single-camera system for optically tracking freehand motion in 3D: experimental implementation and evaluation", Proc. SPIE 4319, Medical Imaging 2001: Visualization, Display, and Image-Guided Procedures, (28 May 2001); https://doi.org/10.1117/12.428043

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