Edge-based identification of DP-features on free-form solids

Numerous applications in mechanical CAD/CAM need robust algorithms for the identification of protrusion and depression features (DP-features) on geometric models with free-form (B-spline) surfaces. This paper reports a partitioning algorithm that first identifies the boundary edges of DP-features an...

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Veröffentlicht in:	IEEE transactions on pattern analysis and machine intelligence 2005-06, Vol.27 (6), p.851-860
Hauptverfasser:	Lim, T., Medellin, H., Torres-Sanchez, C., Corney, J.R., Ritchie, J.M., Davies, J.B.C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Applied sciences Artificial Intelligence Boundaries CAD CADCAM CAM CAPP Computer aided design Computer aided manufacturing Computer science control theory systems Continuity Depression Equipment Design - methods Exact sciences and technology geometric modeling Geometry Image Enhancement - methods Image Interpretation, Computer-Assisted - methods Imaging, Three-Dimensional - methods Index Terms- Three-Dimensional geometric feature recognition Information Storage and Retrieval - methods Machining Mathematical models Partitioning algorithms Pattern analysis Pattern recognition Pattern Recognition, Automated - methods Pattern recognition. Digital image processing. Computational geometry Segments Software Solid modeling Spline Surface reconstruction Surface topography
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Beschreibung
Zusammenfassung:	Numerous applications in mechanical CAD/CAM need robust algorithms for the identification of protrusion and depression features (DP-features) on geometric models with free-form (B-spline) surfaces. This paper reports a partitioning algorithm that first identifies the boundary edges of DP-features and then creates a surface patch to cover the depressions or isolate the protrusions. The novelty of the method lies in the use of tangent continuity between edge segments to identify DP-feature boundaries that cross multiple faces and geometries.
ISSN:	0162-8828 1939-3539 2160-9292
DOI:	10.1109/TPAMI.2005.118