> Could I trouble you for the url of the demo
> to which your friend is referring?

Here's 3 related messages from Ken with a range of sites on tomography.


RM

++++++++++++++++++++++++++++

Came across this "how it works" website describing some of the concepts
behind CAT.

http://www.colorado.edu/physics/2000/tomography/index.html

A bit "cheesy" but does an excellent job of showing how CAT basically works.
Thought you might like it.

++++++++++++++

If you are interested in CAT beyond the toy demo I pointed you at recently
then this site is a comprehensive introduction to the maths and algorithms
involved.

http://www.sv.vt.edu/xray_ct/parallel/Parallel_CT.html

I would guess that there would be enough detail here (including programs in
MATLAB and Parallel Fortran) to actually implement a CAT machine if you
wanted to work through it and had some means to generate the input data
(don't try this at home).

There is also quite a lot of useful material (including very detailed MATLAB
code) available at this site:

http://www.owlnet.rice.edu/~elec631/Projects99/mit/

+++++++++++++++++

An authoritative and definitive book has been written on the subject of CT
imaging by Avinash Kak and Malcolm Slaney.  It was originally published in
1988 by the IEEE press and released in electronic form in 1999.

The good news is that it is available free of charge on the web in the form
of a set of PDF files.  You need to be fairly keen since the files total
almost 37Mb but I am told that the book is fairly readable despite the heavy
maths in places.  You can get it from:

http://www.slaney.org/pct/

This will be my bedtime reading for the next little while.

++++++++++++++++

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