RE: Sports and 3d

[P3D Greg Marshall <greg.marshall@xxxxxxxxxxxxxxx>]

P3D Dr. George A. Themelis wrote:
<snip>
>The other is my friend Howard who knows that he has a problem with
>one eye.  Apparently one eye is dominating his vision.  He has
>failed my stereopsis tests and he does not show any appreciation
>for stereo photography.  He used to wear glasses, now he wears
>contacts.  The interesting thing about Howard is that he is a
>great basketball player.  Now, wouldn't you expect stereopsis to
>be very important in basketball?

<snip>
>I would like to solicit views and experiences from people with
>reduced stereoscopic ability, but I realize I am writing in the
>wrong list. :-)

>George Themelis

I think this is a fascinating topic and would like to hear other views.
And it IS important to stereography because it may well be a key
to mass acceptance/popularity of stereo photos (or lack thereof).

What is the stereopsis test you use?  I suspect that some people
with perfectly normal stereo vision do not consciously perceive
visual depth, but are processing the depth information sub-
consciously.  If you show Howard a stereo picture he claims to
not perceive depth, but can he tell you the relative positions of
objects (depth-wise)?  I suspect such a person might be more
discriminating in depth perception, rejecting unnatural views, so
the test should be done with a stereo image taken with natural
IPD of objects in normal viewing range.

And to really stir things up, do you suppose there is any
correlation between depth perception and intelligence?  I won't
say (yet) what I think about that...

Greg Marshall


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