T3D e: Perspective on extreme 3d

[bercov@xxxxxxxxxxx (John Bercovitz)]

John Toeppen writes:
> Accommodation may account for the perceptual 
> problem with extreme depth disparity in an image.

I used to think this too, and still do to some extent,
but I am not sure how people who have lost their 
accommodation fit into this theory.  They still have
trouble with extreme depth on screen but not in real
life.  Maybe the emphasis should be on the out-of-focus
aspect which you also talk about.  People with no 
accommodation still see some thing in sharp focus and 
things nearer and farther out of focus.  This fits in
with Bill Carter's single lens 3D because single lens
3D doesn't have so much depth of field if the lens is
open yet the total depth disparity can be high with no
viewing problems because the near and far objects are
so far out of focus.

John B


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End of TECH-3D Digest 499
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