Inversion-based imaging using lagrange polynomial parameterization and genetic algorithm optimization

Yew Li Hor; Yu Zhong; Huapeng Zhao; Viet Phuong Bui; Ching Eng Png

doi:10.1117/12.2263265

12 April 2017 Inversion-based imaging using lagrange polynomial parameterization and genetic algorithm optimization

Yew Li Hor, Yu Zhong, Huapeng Zhao, Viet Phuong Bui, Ching Eng Png

Proceedings Volume 10168, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017; 101683S (2017) https://doi.org/10.1117/12.2263265
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States

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.

Citation Download Citation

Yew Li Hor, Yu Zhong, Huapeng Zhao, Viet Phuong Bui, and Ching Eng Png "Inversion-based imaging using lagrange polynomial parameterization and genetic algorithm optimization", Proc. SPIE 10168, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2017, 101683S (12 April 2017); https://doi.org/10.1117/12.2263265

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available