Feature-aware Segmentation from Point Cloud
- Definition of Feature
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Distance Function: Every point in three-dimension
is assigned its distance to the shape.
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When the shape is known only via a finite point
sample, the critical points can be detected by Voronoi-Delaunay
duality.
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Stable Manifolds of the Maxima define the features.
- Computation of Stable
Manifolds of Maxima
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A flow relation is defined among the Delaunay tetrahedral depending on the relative position of
their circumcenters (dual Voronoi
vertices).
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The transitive closure of this relation gives the
stable manifolds of the maxima.
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- Sample Results on
Free-form Objects:
