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From: mcohen@charming.nrtc.northrop.com (Martin Cohen)
Subject: Re: Current views about the utility of stereo vision?
Message-ID: <CxIpuu.AIr@gremlin.nrtc.northrop.com>
Summary: I can't see it
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References: <36mcfs$4q2@percy.cs.bham.ac.uk> <Cx9HF6.5nE@ecf.toronto.edu> <375kno$epd@percy.cs.bham.ac.uk>
Date: Tue, 11 Oct 1994 16:59:16 GMT
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Xref: glinda.oz.cs.cmu.edu comp.ai:24625 comp.ai.neural-nets:19392

I am one of those unfortunates with no stereo vision at all.
I see separate images with each eye, and can control at will
the currently dominant eye. When looking out of one eye,
I am aware of the view of the other eye, but the images
do not merge.

This was caused, I believe, by two eye operations I had
at the ages of 2 and 4 because I was cross-eyed. The 
operations worked, but my stero vision was lost.

This caused lots of problems growing up, because I could
not judge things like the path of a baseball. I got hit
on the head a lot before I gave it up. I thought I
was just clumsy.

Interestingly enough, when my son started playing ball
a few years ago, I found to my pleasant surprise that
I could do a fair job of judging the path of a fly ball.
I still do not have stereo vision, but, I guess, the
20+ years of life have improved my judgement.

It's very frustrating to be quite interested in 3d graphics
and to be unable to use any of the 3d image producing
systems that require images to be merged from the two eyes.
The only things that work are holograms (so far).

Oh well, life goes on and so do I.

