<div dir="ltr"><div><br></div>Hi, <br><div><br></div><div>In one application I am needing to deform points instead of images, so I mainly have the opposites of all the deformations I need. So far, and thanks to a lot of help received here, I managed to invert deformation fields and several kinds of Rigid and Affine deformations, but so far I have had no luck with <br>
<br>typedef itk::BSplineDeformableTransform< double, 3, 3 > DeformableTransformType;<br></div><div><br><br></div><div>I have tried to use the GetInverseTransform() method (which worked for rigid and affine transformations), I can compile it but I get a segmentation fault whenever I try to use my inverted bsplines transform (the output of the deformation is NULL). I assume this comes from the fact that inverting a Bsplines transform is pretty difficult. My first question is: Is there a "quick" way to invert a Bsplines transform?<br>
<br></div><div>If the answer is no, I can also invert a deformation field if I can get one from the bspline tranform, so the second question is: How can I generate a deformation field from a Bsplines transform?<br><br></div>
<div>Thank you all once more for all your help <br></div><div>Yago<br></div><br></div>