"Norbert Kern" <nor### [at] t-onlinede> wrote:
>
>...
> Much better than my own approach to depict mri scans.

I really like the way you have arranged the glass sheets and how the light
escapes at their edges.

BTW: Where did you find the MRI-data for this ?


> How did you remove bones, eyes etc.?

Luckily I did not have to deal with that. It had already been done, so the
DF3-file only contains the brain.

A while ago I made some (not very successful) attempts at filtering the data (in
Python) for a CT-scan according to a range of Hounsfield units for bone:
https://en.wikipedia.org/wiki/Hounsfield_scale

IIRC the problem was that the range for the bones overlapped the range for some
other tissue. (It might be that it wasn't a high quality scan.) I suspect that
they now use quite advanced techniques to isolate the different organs. I would
guess that some techniques find "gradient surfaces" in the data.

--
Tor Olav
http://subcube.com

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