Edge-based identification of DP-features on free-form solids
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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. © 2005 IEEE.
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CAD; CAM; CAPP; Geometric modeling; Three-dimensional geometric feature recognition Algorithms; Computational geometry; Computer aided design; Computer aided manufacturing; Edge detection; Mathematical models; Three dimensional computer graphics; Free-form solids; Geometric modeling; Three dimensional geometric feature recognition; Feature extraction; algorithm; article; artificial intelligence; automated pattern recognition; computer aided design; computer assisted diagnosis; equipment design; evaluation; image enhancement; information retrieval; methodology; three dimensional imaging; Algorithms; Artificial Intelligence; Computer-Aided Design; Equipment Design; Image Enhancement; Image Interpretation, Computer-Assisted; Imaging, Three-Dimensional; Information Storage and Retrieval; Pattern Recognition, Automated
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