background points and transforms

[Abc11c]

Hi @xuchen-ethz

Thanks for releasing the code!

Was wondering if the filter is capable of handling background points?

I understand it primarily filters diverged and converged points based on the threshold.
Does it mean it picks up points that don't contribute to the surface and mask those as well? (prevent them following the skeleton while deforming)

Is there a way to do the above?

Thanks!