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Inversion-based imaging using lagrange polynomial parameterization and genetic algorithm optimization
Author(s): Yew Li Hor; Yu Zhong; Huapeng Zhao; Viet Phuong Bui; Ching Eng Png
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Paper Abstract

A fast crack profile reconstitution method is developed using eddy current probing scheme. The technique employed genetic algorithm (GA) optimization together with boundary element method (BEM) to evaluate the shape of the cracks that are described by using the Lagrange polynomial (LP). In doing so, the shape of the open cracks could be obtained. Compared to the pixel-based description of the cracks, the LP description could significantly reduce the number of the unknowns, and this increases the efficiency of the global searching by the GA. This technique has greatly improved the efficiency of the inversion solver. Numerical tests are shown to validate the interests.

Paper Details

Date Published: 12 April 2017
PDF: 6 pages
Proc. SPIE 10168, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017, 101683S (12 April 2017); doi: 10.1117/12.2263265
Show Author Affiliations
Yew Li Hor, A*STAR Institute of High Performance Computing (Singapore)
Yu Zhong, A*STAR Institute of High Performance Computing (Singapore)
Huapeng Zhao, Univ. of Electronic Science and Technology of China (China)
Viet Phuong Bui, A*STAR Institute of High Performance Computing (Singapore)
Ching Eng Png, A*STAR Institute of High Performance Computing (Singapore)


Published in SPIE Proceedings Vol. 10168:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017
Jerome P. Lynch, Editor(s)

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