[photo-3d] Re: Stereo Quiz results so far

[Abram Klooswyk <abram.klooswyk@xxxxxx>]

Bruce Springsteen 27 Aug 2000:
>I  want to see Abram's answers!  He was probably correct in some
>perverse way - right?

Not really perverse, in my opinion :-).
I thought George meant a quiz for beginners. We all can learn
a
lot, but I didn't mean to join the quiz, but now I see some
very
experienced names on the results list :-).
I only meant to remark on some biasing details in the quiz. 

1. Lea's baseball picture is correctly shown at Dr.T's page:
   http://home.att.net/~drt-3d/DrT/index.htm
I wrote: "The answer to 1. is clear when you try to save both 
images to disk!".
Why? They are _both_ called: LeaBaseball-L.jpg   (No *-R*).
(Moreover, I'm allergic to flatties :-)).

2. The girl on the field seems Lea again. I wrote:
"The answer to 2. can be guessed from the names
(right-clicking)".
Why? The names are: leaLrot.jpg and leaRrot.jpg.
When you have figured out what "lea" and L and R stand for,
any idea what "rot" could mean? :-)

George comments:
>>No. 2 seems to be puzzling.  The most common
incorrect answer is "(vertical) misalignment". 
Vertical misalignment can be caused if one camera
or lens is higher than the other or by incorrect
mounting.  Every pair of homologous points are then
displaced by the same amount.  This is not the case
in this pair!  Why?  What is really wrong?<<

Simple vertical misalignment (if not too large) can 
easily be corrected in viewing by tilting your head
a little sideways. Except for strips at the lower and 
upper edges you should get a reasonable good result.
This however doesn't work with these Lea pictures.

3. >But 3. is really hard!  :-)

Apart from the peculiarities of this quiz, the quiz
method seems a very good idea in discussing (teaching)
mounting.

Abram Klooswyk