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20 October 1997 Ridges and ravines on a surface and segmentation of range images
Alexander G. Belyaev, Ilia A. Bogaevski, Tosiyasu L. Kunii
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Proceedings Volume 3168, Vision Geometry VI; (1997) https://doi.org/10.1117/12.279655
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States
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.
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Alexander G. Belyaev, Ilia A. Bogaevski, and Tosiyasu L. Kunii "Ridges and ravines on a surface and segmentation of range images", Proc. SPIE 3168, Vision Geometry VI, (20 October 1997); https://doi.org/10.1117/12.279655
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KEYWORDS
Image segmentation
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