"Averaging" 3D models


I have several 3D models which are fairly similar (heart contours), but not exactly equal. I was wondering if there is a way to create the “average” model of these after registering them to each other.
I found a paper which describes the theory of what I would like to accomplish (https://www.sciencedirect.com/science/article/pii/S1077314205000858), but I was hoping that someone could point me to a 3D Slicer extension or so where this function might already have been implemented.

Thank you

SlicerSALT extension has sophisticated shape analysis tools that should provide what you need (probably better methods than the one described in the referenced paper).

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