Koen,

one idea would be to convert your surfaces to binary mask images
( itkTriangleMeshToBinaryImageFilter) and then compare images voxel by
voxel, 

HTH

Leila

On Tue, 2009-06-09 at 18:08 +0200, Koen Vermeer wrote:
> Hi,
> 
> My experience with ITK is still rather limited, so I'm looking for help
> on which approach would be the best for my problem.
> 
> In a 3D volume (note that my pixels are not isotropic), I have two 2D
> surfaces (represented by a set of points, or a level set, or whatever
> the solution requires). I am looking for a way to determine the minimum
> distance between these two surfaces, for each point on these surfaces.
> 
> I was thinking about propagating one surface and recording some kind of
> distance map on the location of the second surface. Would something like
> a distance map be the most appropriate operator, a fast marching filter,
> or something else?
> 
> Any comments are appreciated; if more information is required, I'd be
> more than happy to elaborate on the problem!
> 
> Best,
> Koen
> 
> _____________________________________
> Powered by www.kitware.com
> 
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
> 
> Please keep messages on-topic and check the ITK FAQ at: http://www.itk.org/Wiki/ITK_FAQ
> 
> Follow this link to subscribe/unsubscribe:
> http://www.itk.org/mailman/listinfo/insight-users