P3D DrT's "Five Principles of Stereo Imaging"

[fj834@xxxxxxxxxxxxxxxxxxxxx (Dr. George A. Themelis)]

I guess a got a bit excited with Ray's posting.  I basically agree with
what he says:

1. Stereo vision is a highly complex and subjective issue.  I have always
   believed that.  Discussions in photo-3d show that different people see
   different things to different degrees.  Nobody is right, nobody is wrong. 
   There is only one theory of Stereo Relativity: "What I See is What I See".
   Well, sometimes... because:

2. Individual depth perception can change with time, practice and exercise.
   That's the "Theory of Stereo Evolution", a.k.a. "See it Now, It is Gone
   Tomorrow".  When I told Peter to come back 10 years later and tells us 
   if he sees things differently, I did not mean it as an insult... I have
   changed... I don't see "projection stretch" any more. 

3. Viewing hardware affect our depth perception.  No arguing about that. 
   Stereo does not stand by itself (except for the "secret of the ancient
   revealed")  We see through the viewers.  What we see is what is presented
   to our eyes.  And the way it is presented is extremely important.  This 
   is "DrT's Theory Of Viewers".

4. Geometrical considerations and quantitative measurements might not
   entirely explain our individual depth perceptions but a- they correctly
   predict the basic trends for most people, b- help our understanding of 
   how and why we see what we see, and c- they are better than nothing!  
   This is the John B Principle  stated as "I Measure Therefore I See")

5. Stereo Perception can be measured.  I did not say that.  Jim's doctor
   did!  So, let's call it "The Norman's Eye Doctor Theory").

-- George Themelis


------------------------------