[caret-users] (no subject)

[Donna Dierker]

Hi Sofia,

There is no reason whatsoever you can't map a cubic 1mm volume onto your 
surface.  In fact, we do this occasionally (e.g., map anatomical volume 
onto the surface as if it were a functional volume, to assess the 
variation of GM intensity across the cortex).

How much memory do you have?  The latest registration form from you 
shows you're running Windows XP.  I'm not sure whether there are memory 
constraints that can be enforced on users, but if so, remove them.

The resulting metric would not be any bigger; its size is determined by 
the number of nodes in the surface, which would not change.  The only 
difference would be the larger memory load when it reads the volume, but 
3981312 voxels is normally not enough to bring a machine to its knees.

Is it perhaps a problem with converting the larger size from BV to 4dfp 
(e.g., you only have a cubic 3mm ifh file)?

Donna

On 05/26/2009 05:17 AM, s.crespi1 at campus.unimib.it wrote:
> Hi Donna
> I have a question:
> is it possibile to map on a flat map a statistical map (as a metric 
> file that now we are able to create with 4dfp importing data from BV) 
> with the resolution of 1x1x1
> I easely map a statistical image 3x3x3, but a bigger matrix 
> (144x192x144 instead of 48x64x48) with voxel size of 1 mm could not be 
> displayed.
>
> thanks
> sofia
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