Hi - sure - see the techrep at:
http://www.fmrib.ox.ac.uk/analysis/#TR00YZ1
Cheers, Steve.
On Tue, 19 Jul 2005, Graham Wideman wrote:
> Thanks Steve. Is the FAST strategy and algorithm described in that level
> of detail somewhere... perhaps in a paper?
>
> Thanks,
>
> Graham
>
> At 7/19/2005 08:07 PM, you wrote:
> >Hi - that's nearly correct - but it won't give exactly the same results.
> >The difference is that when you ask for PVE output the MRF (spatial
> >regularisation) is run on the PVE estimation (having also been earlier run
> >on the initial hard seg segmentation). So there's extra regularisation
> >during the PVE estimation, meaning that your suggestion will show slightly
> >different results.
> >
> >Cheers.
> >
> >
> >On Tue, 19 Jul 2005, Graham Wideman wrote:
> >
> >> FSL Folks:
> >>
> >> I'm looking at some FAST output, and would like to know what I should
> >> expect for how the Seg output should correspond with the PVE output?
> >>
> >> Should it be as simple as whichever tissue type was greatest PVE "wins"
> >> the seg categorization for that voxel?
> >>
> >> Thanks,
> >>
> >> Graham
>
--
Stephen M. Smith DPhil
Associate Director, FMRIB and Analysis Research Coordinator
Oxford University Centre for Functional MRI of the Brain
John Radcliffe Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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