Hierarchical part-type segmentation using voxel-based curve skeletons |
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Authors: | Email author" target="_blank">Dennie?ReniersEmail author Alexandru?Telea |
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Affiliation: | (1) Department of Mathematics and Computer Science, Eindhoven University of Technology, Eindhoven, The Netherlands;(2) Institute for Mathematics and Computing Science, University of Groningen, Groningen, The Netherlands |
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Abstract: | We present an effective framework for segmenting 3D shapes into meaningful components using the curve skeleton. Our algorithm
identifies a number of critical points on the efficiently computed curve skeleton, either fully automatically as the junctions
of the curve skeleton, or based on user input. We use these points to construct a partitioning of the object surface using
geodesics. Because the segmentation is based on the curve skeleton, it intrinsically reflects the shape symmetry and articulation,
and can handle shapes with tunnels. We describe a voxel-based implementation of our method which is robust and noise resistant,
able to handle shapes of complex articulation and topology, produces smooth segment borders, and delivers hierarchical level-of-detail
segmentations. We demonstrate the framework on various real-world 3D shapes. Additionally, we discuss the use of both curve
and surface skeletons to produce part-type and patch-type, respectively, segmentations of 3D shapes. |
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Keywords: | Shape segmentation Curve skeletons |
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