Field interpolation from set of 2D slices (3D volume)

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#1

Hi;

I have a stack of 2D images (3d image Data). each 2d image represent a distance field computed from contour (contour of slicerRT) , I want to interpolate pixel by pixel the 2D images using a cubic spline interpolation? but I have no idea how can I do that?

any suggestion will be appreaciated

Thank’s in advance

#2

You can use “Resample Scalar/Vector/DWI Volume” module for this. Set interpolation type to bs.

#3

thank you very much for answer. ResampleScalarVolume.cxx uses ITK filters, is it possible to use vtkImageBSplineInterpolator instead?

#4

You need to take care of image axis directions in some way (VTK8 only supports non-rotated axes) and proper prefiltering but it should be usable, too.

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#5

A post was split to a new topic: Computer slows down after volume is oversampled