Revisiting Rigid Mesh Registration

@lassoan Many thanks again for taking the time.

I have a question that came out of this ? I don’t know it is valid or just a stupid question.

Is ICP better than land mark registration ? or which one is superior or are they the same. ?

2nd. How do i remove the region that has changed before ICP registration and then add it back to the new location to calculate model to model distance ? i can think of how to do this in dicom data with masking but these are stl files. How to do I do that ???

Thank you.