"jute" <nomail@nomail> wrote in message 
news:web.415aa11968f0cebfee6573000@news.povray.org...
>
> Here's a sample render of a better-than-average MRI (resolution-wise) scan
> of my head.  Lot's of artefacts visible, all due to the dataset rather 
> than
> POV-Ray.
>
> I can make the .df3 (and the original DICOM dataset as well) available if
> there's interest.  A word of warning though -- it's a bit difficult, 
> though
> not at all impossible, to obtain better renderings than this from the MRI
> data.  It requires a lot of pre-processing (noise filtering, segmentation,
> ....) and the (free) tools available for this are a world of their own.
>

I did some renders from CT and MRI scans some time ago (using a df3 file 
directly and converting it to a
thresholded mesh)  The MRI scan quality that I obtained with a simple 
threshold was far better than you are
getting here and the CT scans were astonishingly detailed.  That they use 
big, complicated applications
in hospitals doesn't neccessarily mean that a simpler approach won't give 
good results.  I can make the df3 files /
meshes / mesh conversion code available if anyone is interested.  I've 
included a render of one of the sectioned meshes
that I made (A CT scan in this case)

Andy

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