[vtkusers] Interpolating between contours (resampling MRI data)

[Marius Erdt]

Hi,

I've got MRI data that needs to be resampled to isotropic voxel 
dimensions. While the resampling of the voxel data set is not the 
problem, there are also contours in every slice which need to be 
interpolated as well. The contours themselves are single point sets for 
each slice.

My question is now how to interpolate between the contours from the 
different slices such that they match the isotropic (resampled) voxel 
data set? That means, in every slice of the new resampled data set has 
to be an appropriate contour.
I was thinking about generating a surface from the whole (3D) point 
cloud and then slicing through the surface by defining cutting planes. 
However, I don't know if there is a more straightforward way in VTK.

Does anyone know if there is an easy/common way to deal with such a 
problem? If not, would the approach with cutting planes appropriate?

Thanks for any help,

Marius