Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!ucsd!sdcc6!sdcc10!cs161agc
From: cs161agc@sdcc10.ucsd.EDU (John Schultz)
Newsgroups: comp.graphics
Subject: Re: ShowScan (?)
Message-ID: <74@sdcc10.ucsd.EDU>
Date: 1 Feb 89 05:06:51 GMT
References: <EXtZ8Fy00VoBMI6VQ2@andrew.cmu.edu>
Reply-To: cs161agc@sdcc10.ucsd.edu.UUCP (John Schultz)
Organization: University of California, San Diego
Lines: 14

In article <EXtZ8Fy00VoBMI6VQ2@andrew.cmu.edu> jv0l+@andrew.cmu.edu (Justin Chris Vallon) writes:
>What is ShowScan?  What principle is it based on (projection & perception)?
>What is the film medium?

  According to the ShowScan people, regular film is 24 frames/sec
shown twice at 48 frames/sec (24 new images a sec).  ShowScan is 60
frames/sec with 60 new images/sec.  That's it.  They found that the
brain could perceive 60 frames a second optimally; less frames a sec
was worse, and more than 60 produced no improvement in perception.
With almost three times more information a second, images look much
more realistic, almost 3D.  The effect is like looking out of a
large window at the front of the theater. 

  John Schultz