Hello, I would like to ask if there is a way how to make output deformation smooth fro further image warping. I was using Demon registration which gives me quite a wild deformation… see GitHub-SimpleITK
Have you tries the diffeomorphic version of demons registration: https://itk.org/SimpleITKDoxygen/html/classitk_1_1simple_1_1DiffeomorphicDemonsRegistrationFilter.html
That version is guaranteed to be invertible.
well, it is significantly better but still there is discontinuity… how can I upload an image to show it?
When you hit reply what does it say?
Have you tried pasting an image?
the original deformations
Could you also visualize these by resampling a grid? There should be a grid image source filter to help.
There is also the iterative inverse: https://itk.org/SimpleITKDoxygen/html/classitk_1_1simple_1_1IterativeInverseDisplacementFieldImageFilter.html
To assess displacement fields, you can drag-and-drop the image and ITK transform file to 3D Slicer, go to Transforms module, and enable 2D and/or 3D visibility in Display section.