sch (03/16/83)
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Response to 3-D Movies and Pulferich's Pendulum (re: pyuxss.124)
There may be a difference in processing delay of red and blue
images (although the Pulfrich Pendulum phenomena relates to a difference
in dark adaptation with neutral density, not colored filters) but that
has nothing to do with 3-D movies, typically. Red and blue are used simply
to provide a separate image to each eye, and plain old binocular disparity
does the rest. Simply use two lenses (simulating your two eyes) on your
camera (one red, one blue) and merge onto color film. Now look at the film
and use the filters to separate the originals back out. The same goes for
polarizing filters for full color.
I'm always surprised at the amount of energy put into wild surmises
and the lack of reference to existing knowledge displayed on the net.
Works on perception by Cornsweet, Kling & Riggs, and Kaufman are starting
points. See also a book by T. Okoshi on 3-D displays, and volume #120
of Proceedings of the Society of Photo Optical Instrumentation Engineers
(SPIE) edited by S. A. Benton on 3-D imaging.
Regards,
Nick England
at Ikonas
(mail responses to mcnc!ikonas!sch, I will summarize)
Steve Holzworth
mcnc!ikonas!sch