We present a new technique for extracting line-type features on point-sampled geometry. Given an unstructured point cloud as input, our method first applies principal component analysis on local neighborhoods to classify points according to the like
2013CVPR Michael Kolomenkin Technion，Ilan Shimshoni，Ayellet Tal Technion。This paper extends to surfaces the multi-scale approach of edge detection on images.We demonstrate how to realize our approach on two commonly-used special cases: ridges & vall
