Re: TECH: Filtering head position/orientation data

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#2924

From: Technically Sweet
Date: Sun, 03 Jan 1993 06:43

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Diego Montefusco wanted to do dead reckoning:

Everett Carter at the Naval PostGrad School in Monterey, CA, USA,
posted his Kalman filtering C++ class to comp.dsp awhile back.

Just spouting off:

I always wondered if it would be possible to allow palsied users to
use a mouse by running the mouse input through a bandpass filter.

The assumption that processing a position input as a signal is
somewhat dubious.  Basic signal processing is biased towards the model
of sound as a periodic waveform.  If your sampling rate is fast enough
(50hz maybe?) it is a reasonable use of DSP technology, but at
10hz-15hz for Polhemi or Power Gloves it makes more sense to adopt an
underlying model of a person moving around jerkily and predict from
that.  With all-over joint sensors you could predict from a model
incorporating the rotational abilities of the connected joints...


-- 

Lance Norskog
thinman@netcom.com
Data is not information is not knowledge is not wisdom.

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From: thinman@netcom.com (Technically Sweet)
Newsgroups: sci.virtual-worlds
Subject: Re: TECH: Filtering head position/orientation data
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Date: 3 Jan 93 06:43:33 GMT
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