🚀 go-pugleaf

In article <1992Sep11.160621.23893@mail.cornell.edu>
Richard Zimmerman <rsz1@cornell.edu> writes:

>I need a way to sense both head rotation and head tilt.  I would like to
>do it as inexpensively and as unobtrousively as possible (I don't want to
>build some huge cage to place on your head)  It also needs to be pretty
>accurate.  I using the device to sense head movements in a stereo-vision
>application.  Any suggestions would be greatly appriciated...
>
>---- Richard Zimmerman (rsz1@cornell.edu)

Look into the FAQ for sci.vr-worlds (if I recall the newsgroup name
correctly).  A relatively low-cost device is The Bird from Ascension
Inc. in Burlington, VT, USA.  It is an electromagnetic device that
provides real-time position and attitude (attitude matrix, Cardan
angles, and/or quaternions) of a sensor w.r.t. a source.  Each con-
tains three mutually perpendicular coils which are pulse-driven at
the source whence position and attitude of the sensor w.r.t. the
source can be assessed.
 
There are various opto-electronic and ultrasonic systems, but they
are much more expensive.
 

Herman J. Woltring <woltring@nici.kun.nl>
Moderator, Biomch-L@nic.surfnet.nl
 
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