Russ Navarre (rnavarre++at++ford.com)
Fri, 22 Sep 1995 07:26:34 -0400
On Sep 21, 7:31pm, Kent Miller wrote:
> Subject: Re: Virtual I/O Head Tracker
> > I have written a head tracker driver library for the Virtual
> >I/O Glasses. I found that the tracker is very noisy. I do an sproc so
> >that I can collect data faster than I am using it. This allows me
> >to average a few samples before they are used. I have written
> >a filter but I still get a lot of jitter. Has anyone else written
> >a decent filter for it?
> >
> I wrote a damper for our Polhemus FASTRAK. It's ok, but you always have the
> smooth vs. fast response problem. The more you damp, the more you feel like
> your head's stuck in molasses. Try playing around with the number of samples
> you average, and the cone angle of the dead spot. For the Polhemus, the best
> mix is about 20 samples with a 3-degree cone.
>
> This year's SIGGRAPH papers included one on predicting head motion - I
> suppose you could spend a couple of months turning that into code (and post
> it here!). That way you can have it both ways.
>
>
>-- End of excerpt from Kent Miller
-- ------------------------------------------------------------------------------ Russ Navarre Phone: (313) 322-9588 Adv. Graphics Software Developer Fax: (313) 594-1193 Ford Motor Company Email: rnavarre++at++ford.com Room 1122, Building#5 20000 Rotunda Drive Dearborn, MI 48121 ------------------------------------------------------------------------------
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