[MINC-users] spatial location of voxels

Sylvain MILOT sylvain@bic.mni.mcgill.ca
Wed Apr 21 14:47:05 2004


1 - centre as said previously
2 - minctotag comes to mind

On Wed, 21 Apr 2004, Kuan H. Kho wrote:

> Dear MINC users,
>
> I was wondering what to what spatial location the MINC coordinates (both
> voxel and world) refer to. Is that a vertex (which of the 8), the middle of
> an edge, or the center of a voxel?
>
> Furthermore, I was wondering whether there's a command or tool to extract
> the exact voxel (and world) coordinates for certain conditional voxel
> values (i.e. thresholds) in a volume. Of course the exact voxel coordinates
> suffice, for  world coordinate = voxel coordinate*step + start, but if
> there's such a tool existing, it would come in handy. (The reason is that I
> would like to compare some voxel coordinates from volumes that have been
> registered, but have different voxel sizes.)
>
> Thanks in advance,
>
> Kuan Kho
>
> Kuan H. Kho
> Rudolf Magnus Institute of Neuroscience
> Dept. of Neurosurgery and Psychiatry
> section: Functional Neuroimaging
> University Medical Center Utrecht
> P.O.Box 85500
> 3508 GA Utrecht
> The Netherlands
> Phone: +31-30-2507969/2507977
> Fax  : +31-30-2542100
> email: k.h.kho@azu.nl
>
> _______________________________________________
> MINC-users@bic.mni.mcgill.ca
> http://www.bic.mni.mcgill.ca/mailman/listinfo/minc-users
>

---
Sylvain Milot (sylvain@bic.mni.mcgill.ca)
Positron Imaging Laboratories
Montreal Neurological Institute
Webster 2B, Room 208
Montreal, Qc., Canada, H3A 2B4
Phone: (514)-398-4965, 1996   Fax: 8948