use 3D free form deformation for 3D image registration

Hello every body. Im working on medical image registration. Is there any matlab code for 3D free form deformation in order to use it for 3D medical image registration?

thanks a lot

Answer 1

[Matt J]

There is imwarp, interpn, and griddedInterpolant.

[tala]

thanks for your attention and answer. but arent these for interpolation? I need a function for free form deformation algorithm

[Matt J]

Aren't they the same? What does it mean to "deform" an image, if not to re-interpolate it at various locations?