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Proceedings Paper

Ridges and ravines on a surface and segmentation of range images
Author(s): Alexander G. Belyaev; Ilia A. Bogaevski; Tosiyasu L. Kunii
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Paper Abstract

On a smooth generic surface we define ridges to be the local positive maxima of the maximal principal curvature along its associated curvature line and ravines. We investigate relationships between the ridges and ravines, singularities of the caustic generated by the surface normals, and singularities of the distance function from the surface. Stable numerical extraction of the ridges and ravines from range data is achieved via adaptive smoothing that preserves sharp ridges and ravines. We demonstrate applicability of the ridges and ravines for range image segmentation purposes.

Paper Details

Date Published: 20 October 1997
PDF: 9 pages
Proc. SPIE 3168, Vision Geometry VI, (20 October 1997); doi: 10.1117/12.279655
Show Author Affiliations
Alexander G. Belyaev, Univ. of Aizu (Japan)
Ilia A. Bogaevski, Nordon Co. (Russia)
Tosiyasu L. Kunii, Lab. of Digital Art and Technology (Japan)


Published in SPIE Proceedings Vol. 3168:
Vision Geometry VI
Robert A. Melter; Angela Y. Wu; Longin Jan Latecki, Editor(s)

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