[Insight-users] BSpline Deformable Registration with ITK4

[Sebastian Pölsterl]

Hi all,

I'm trying to get deformable registration using BSplines working. I
first started looking at [1] but eventually realized that this example
is not using the new v4 registration framework. Therefore, I found [2]
which uses the new framework but does affine registration. I tried to
adjust this example to do deformable registration, but to no avail. If I
run the code the optimizer always returns the initial state and doesn't
do any move at all.

Please find attached my code and two sample images from [1]. If anyone
could give me a hint what I going wrong or point me to a working example
that does deformable registration using the new registration framework,
that would be highly appreciated.

[1]:
http://www.itk.org/Wiki/ITK/Examples/Registration/ImageRegistrationMethodBSpline

[2]:
https://github.com/InsightSoftwareConsortium/ITKv4-TheNextGeneration-Tutorial/blob/master/Exercises/Registration/RegistrationExercises.cxx

Best regards,
Sebastian
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