[caret-users] question about projection to surface

John Harwell john at brainvis.wustl.edu
Tue Apr 27 08:22:40 CDT 2010


You can use Layers Menu->Foci->Map Stereotaxic Foci and enter points for projection to the surface.  The points you entered can be saved as a foci projection file.  Check out http://brainvis.wustl.edu/wiki/index.php/Caret:Operations/Foci#Map_Stereotaxic_Foci_Dialog.  I do not know of any way to measure spatial uncertainty.


On Apr 26, 2010, at 5:46 PM, Paul Aparicio wrote:

> Dear Caret Users,
> I was wondering if anyone might be able to help me.  I would like to project to the surface a list of arbitrary points from the volume space?  For example, if I have a 3 column matrix of X, Y and Z coordinates that are continuous points, not voxel indices (i.e.  [-23.4521 35.6711 62.8789 = point 1; -22.6574 34.2345 63.4536 = point 2; ect..), and I would like to see where these points are when projected to the reconstructed caret surface.  Also I would like to know what the spatial uncertainty is in terms of the spread of the projection point on the surface, is this possible?
> Thanks so much for any help,
> best regards
> paul
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