Hi
On Tue, 15 Jan 2002, Marenco, Stefano (NIMH) wrote:
> Is there any particular order I should apply susan and brain extraction?
> I seem to get different results when I invert the order of these operations.
> Is this to be expected?
> And what does susan actually do?
They are both nonlinear processes so yes, the order will affect things.
You should not normally need to apply susan before BET. In general, we do
not use SUSAN before our other programs as they are all designed to be
robust. For example, the FAST segmentation effectively includes its own
"spatial regularisation" (MRFs on the class labels), so SUSAN is
definitely not recommended in that case.
SUSAN is a nonlinear noise reduction algorithm - see
http://www.fmrib.ox.ac.uk/~steve/susan
ttfn :)
|