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

Support
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.

1 Like
5

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