DDF output for data augmentaiton transforms

[mariakawula]

Hi,

is there a way to output the dense displacement field that was used to deform images for data augmentation? I defined a Compose transform that contains, among others, RandAffine and BSpline based deformation field (RandomElasticDeformation from torchio).

I can extract the affine matrix that in principle could be used to get the ddf but I don't have anything for B-splines.

[yiheng-wang-nv]

Hi @mariakawula , could you post your Compose transform here, thus I'm able to have a try.

[yiheng-wang-nv]

duplicate to Project-MONAI/MONAI#3933