Lookup NU author(s): Professor Bin Gao,
Dr Wai Lok Woo,
Professor Gui Yun Tian
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© 2018 Elsevier B.V. Eddy Current Pulsed Thermography (ECPT) has received extensive attention due to its high sensitive of detectability on surface and subsurface cracks. However, it remains as a difficult challenge in unsupervised detection as to identify defects without knowing any prior knowledge. This paper presents a spatial-time-state features fusion algorithm to obtain fully profile of the defects by directional scanning. The proposed method is intended to conduct features extraction by using independent component analysis (ICA) and automatic features selection embedding genetic algorithm. Finally, the optimal feature of each step is fused to obtain defects reconstruction by applying common orthogonal basis extraction (COBE) method. Experiments have been conducted to validate the study and verify the efficacy of the proposed method on blind defect detection.
Author(s): Xiao X, Gao B, Woo WL, Tian GY, Xiao XT
Publication type: Article
Publication status: Published
Journal: Infrared Physics and Technology
Print publication date: 01/05/2018
Online publication date: 09/03/2018
Acceptance date: 28/02/2018
ISSN (print): 1350-4495
Publisher: Elsevier B.V.
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