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Kelvin E. Jones
07-30-1996, 04:44 PM
Dear Biomch-L colleagues,

I am hoping to solicit some advice and confirmation in my attempt to measure
wrist movements with an optoelectronic camera system.

My objective is to use a single camera to track the positions of two passive
markers attached to the front of the hand (subjects have their hands closed
in a loose fist and the markers are attached near the MCP joint). The camera
is positioned in front of the subject to view the markers on a line which
extends down the forearm to the elbow.

Of course measuring movements is no problem, however, I want to transform
the data from the camera coordinate system to a wrist coordinate system to
obtain values for wrist flexion-extension, and radial-ulnar deviation.

I have collected the data and worked out a way to do all this but I was
hoping to have my methods peer reviewed and any glaring errors pointed out.
I'm new to the field and would like to hear from those with more experience.

Thanks,
Kelvin
__________________________________________________ __________________________
| Kelvin Edward Jones, Postdoctoral Fellow

| Dept of Physiology, University of Goteborg
| Medicinaregatan 11, 413 90 Goteborg, Sweden
| tel: +46 31 773 35 02, fax: +46 31 773 35 12, email: kelvin@sfu.ca

| Home Page: http://www.sfu.ca/~kelvin
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