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From: decwrl!well.sf.ca.us!well!lilj@uunet.UU.NET (Joshua Neil Rubin)
Newsgroups: sci.virtual-worlds
Subject: VR/Video
Message-ID: <1991Apr13.180518.1243@milton.u.washington.edu>
Date: 12 Apr 91 22:19:51 GMT
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Chris Shaw writes:

>While video may be a useful adjunct to a virtual reality system,
>it lacks the fundamental property of arbitrary real-time view
>position and orientation control.

           *           *          *

> . . . the simulation component doesn't exist because the view cannot 
>be arbitrarily controlled . . .

           *           *          * 

>Chris Shaw     University of Alberta
>cdshaw@cs.UAlberta.ca           Now with new, minty Internet flavour!
>CatchPhrase: Bogus as HELL !


The NASA Mars fly-by film and several other projects demonstrate that you 
can derive an accurate voxel set from a single stereo pair.  Given
sufficient computer speed and power, we should ultimately be able to do 
this (i.e., be able to extrapolate alternative viewpoints from a single 
video stereopair) in realtime.  Of course, the hidden surfaces must be 
interpolated.  But hey.


lilj@well