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Applicable Analysis
An International Journal
Volume 93, 2014 - Issue 3
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Articles

Two efficient algorithms for surface construction

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Pages 490-510 | Received 06 Nov 2012, Accepted 25 Feb 2013, Published online: 22 Apr 2013
 

Abstract

In this paper, we are concerned with two efficient algorithms for surface construction. Based on the Gauss equations, a discretized nonlinear equation of the form should be solved in the process of surface construction. We first consider a regularized fixed-point iterative algorithm for solving the discretized equation, in which we determine the actual regularization parameter by the Morozov discrepancy principle. A two-parameter algorithm is employed for solving the Morozov equation, and the convergence of the regularized fixed-point iterative algorithm is demonstrated. Secondly, we also propose the regularizing Levenberg–Marquardt scheme to solve the discretized equation, in which the regularization parameter is chosen to be a small constant. Numerical experiments are provided to demonstrate the robustness and efficiency of the two algorithms.

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Acknowledgments

The authors thank Professor Jun Zou (Chinese University of Hong Kong) for his careful and fruitful guidance.

Notes

The work of this author was supported by China Postdoctoral Science Foundation (Grant no. 2012M521444) and National Natural Science Foundation of China (Nos 91130022, 11161130003 and 11101317).

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