From: peter.joseph.kovach@medtronic.com (Peter Kovach)
Subject: Re: TECH: tetherless trackers
Date: 27 Sep 1995 18:44:43 GMT
Organization: Medtronic


From: peter.joseph.kovach@medtronic.com (Peter Kovach)

In article <4462v4$ncf@macondo.dmu.ac.uk>, cph@dmu.ac.uk (Chris Hand) says:
>JMELZER (jmelzer@aol.com) wrote:
>: If you mean "no wires" attached to the user, that will be difficult to get
>: in 6DOF. Most of the "sourceless" trackers provide 3DOF (angles, not
>: positions).
>
>In theory, video-based tracking can achieve 6DOF with no wires on
>the user (although they might have to stick coloured spots on 
>various extremeties, so I suppose this isn't sourceless as such).  

We built one at Honeywell in 1988.  Worked great.  Used triagulation
on a three point set of reflective objects mounted around the head (or
other object you wished to track).