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Received: 2002-09-30

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Journal of Zhejiang University SCIENCE A 2004 Vol.5 No.1 P.75-80


Neural network approach for modification and fitting of digitized data in reverse engineering

Author(s):  JU Hua, WANG Wen, XIE Jin, CHEN Zi-chen

Affiliation(s):  Institute of Advanced Manufacturing Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   huaju@zju.edu.cn

Key Words:  Reverse engineering, Digitized data, Neural network modification and fitting

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JU Hua, WANG Wen, XIE Jin, CHEN Zi-chen. Neural network approach for modification and fitting of digitized data in reverse engineering[J]. Journal of Zhejiang University Science A, 2004, 5(1): 75-80.

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T1 - Neural network approach for modification and fitting of digitized data in reverse engineering
A1 - JU Hua
A1 - WANG Wen
A1 - XIE Jin
A1 - CHEN Zi-chen
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DOI - 10.1631/jzus.2004.0075

reverse engineering in the manufacturing field is a process in which the digitized data are obtained from an existing object model or a part of it, and then the CAD model is reconstructed. This paper presents an RBF neural network approach to modify and fit the digitized data. The centers for the RBF are selected by using the orthogonal least squares learning algorithm. A mathematically known surface is used for generating a number of samples for training the networks. The trained networks then generated a number of new points which were compared with the calculating points from the equations. Moreover, a series of practice digitizing curves are used to test the approach. The results showed that this approach is effective in modifying and fitting digitized data and generating data points to reconstruct the surface model.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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