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CAD Model Segmentation Algorithm Using the Fusion of PERT and Spectral Technology
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-09-25
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
For complex CAD models, model segmentation technology is an important support for model retrieval and reuse.
In this article, we first propose a novel CAD model segmentation method that uses the fusion of the program/project evaluation and review technique (PERT) and the Laplacian spectrum theory.
By means of PERT, spectral theory, and the CAD models’ geometrical and topological information, we transform the b-rep model faces into two-dimensional coordinate points corresponding to the nodes of the attributed adjacent graph (AAG).
The k-means approach with the Silhouette coefficient was employed to conduct unsupervised learning of the coordinate points.
The experimental results demonstrate that (1) the proposed approach can effectively transform the b-rep model into a two-dimensional coordinate point set; (2) the k-means algorithm can efficiently cluster points to achieve segmentation; and (3) in view of human cognition, the segmentation results are more reasonable.
It can effectively divide the point set into several groups to achieve the model segmentation.
American Psychological Association (APA)
Hao, Li& Mo, Rong& Wei, Binbin. 2019. CAD Model Segmentation Algorithm Using the Fusion of PERT and Spectral Technology. Mathematical Problems in Engineering،Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1195629
Modern Language Association (MLA)
Hao, Li…[et al.]. CAD Model Segmentation Algorithm Using the Fusion of PERT and Spectral Technology. Mathematical Problems in Engineering No. 2019 (2019), pp.1-13.
https://search.emarefa.net/detail/BIM-1195629
American Medical Association (AMA)
Hao, Li& Mo, Rong& Wei, Binbin. CAD Model Segmentation Algorithm Using the Fusion of PERT and Spectral Technology. Mathematical Problems in Engineering. 2019. Vol. 2019, no. 2019, pp.1-13.
https://search.emarefa.net/detail/BIM-1195629
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1195629