P3D Re: A technology question...

[erker@xxxxxxxxxxxxxx (Greg Erker)]

>From: "Bryan Willman" <bryanwi@xxxxxxxxxx>
>
>Has anybody pursued the following strategy?
>
>It would seem that one could take a 3d pair,
>triple, etc. scan it, and print the results onto
>holographic film.
>
>The hologram could be displayed on a
>light-box like entity, much like a duratrans
>image.
>
>The net effect would be to allow a 3d wall
>display that does not require the viewer to
>wear any special glasses.
>
>Of course, you have to figure out how to
>make the hologram...
>

  Some holograms are done effectively in
this way. They are called multiplex or
strip holograms AFAIR.

  My favorite one of this type is from
the cover of Sports Illustrated 5 or 6
years ago. It is a colour motion hologram
of Michael Jordon.

  To produce it they put him on a big
turntable and rotated Michael slowly and took
a photo at each angle (I forget the number,
maybe 60?). And they had Michael break
into a smile in slow motion, synchronized
with the rotation.

  Thus your eyes see a 3d image from viewing
him from a different angle with each eye
and there is motion as you tilt the hologram
from side to side.

  So you could make a hologram from a single
stereo pair, or from 4 images from a Nimslo
or whatever. But unless you do something
unusual like using dozens of images or
motion, you are better off with a lenticular
print.

  I'm a big fan of holograms (made some myself
in the olden pre-kids days) but know their
limitations.

Greg E.

http://www.angelfire.com/ca/erker



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