P3D DIRDS not SIRDS

["Harold R. Baize" <baize@xxxxxxxxxxxxx>]

Bob Weir wrote:

>An experiment was designed where test subjects were shown two sections
>of a 10,000 dot SIRDS image (each eye separately, separated by 24 hours).
>One of the test subjects was able to "project" the images together and
>bring up the 3-D image (a floating square above the surface), whereas it
>had not been seen with the individual image(s).


I'm sure a half dozen people will jump on this... they were DOUBLE image
random dot stereograms, not Single Image Random Dot Stereograms. I remember
the article, I was in high school and it renewed my interest in both
psychology and 3-D! Today I have a doctorate in psych and a room full
of stereoscopic gear. Maybe I should have skipped that issue ;-)
The original random dot stereogram work was done by Bela Julesz, the
development of SIRDS came about 15 years later by Christopher Tyler
and Maureen Clarke, and sparked that whole "magic eye" fad.

Harolddd


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