[ITK] [ITK-users] get B spline coefficients

[Lianli Liu]

Hi all,

I have a deformation field  (m*n*k*3 vector image) obtained from B spline
registration and I want to get the B spline coefficient from the
deformation field.  Here are my questions:

 Shall I use the itkBSplineDecompositionImageFilter to do this? If so, do I
need to decompose it along each dimension all just input the entire vector
image? Do I need to down sample the image first before decomposition? How
should I save my decomposition results?

Thanks!

Lianli
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