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Active Subdivision Surfaces

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Active Subdivision Surfaces

Anaïs Badoual, Biomedical Imaging Group (BIG), EPFL, Switzerland

Brain segmentation Nuclei delineation Modeling of a bone

Outline

We present an affine-invariant non-stationary subdivision scheme for the recursive refinement of any triangular mesh that is regular or has extraordinary vertices of valence 4. In particular, when applied to an arbitrary convex octahedron, it produces a G1-continuous surface with a blob-like shape as the limit of the recursive subdivision process. In case of a regular octahedron, the subdivision process provides an accurate representation of ellipsoids. Our scheme allows us to easily construct a new interactive 3D deformable model for use in the delineation of biomedical images, which we illustrate by examples that deal with the characterization of 3D structures with sphere-like topology such as embryos, nuclei, or brains.

References

Open Source Plugin: AC_SubdivisionSurfaces

The method is implemented as a plugin for the Icy bioimaging platform.

Distribution -- PROVIDED AFTER PUBLICATION

Demos

Test images and settings -- PROVIDED AFTER PUBLICATION

Condition of use

The software is freely available for research purposes. However, it should not be redistributed without the consent of the authors. We expect the user to include a citation of this publication whenever presenting or publishing results that are based on the Icy plugin AC_SubdivisionSurfaces.