Single channel blind source separation for defect identification using Eddy Current Pulsed Thermography

Gao, Bin, Bai, Libing, Woo, Wai Lok, Tian, Gui Yun and Cheng, Yuhua (2013) Single channel blind source separation for defect identification using Eddy Current Pulsed Thermography. In: FENDT 2013 - 2013 Far East Forum on Nondestructive Evaluation/Testing, 17th - 20th June 2013, Ji'nan, China.

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Abstract

A single channel blind source separation is proposed to process the Eddy Current Pulsed Thermography (ECPT) image sequences. The proposed method enables the detection automatically extract valuable spatial and time patterns according to the whole transient response behavior without any training knowledge. In addition, it has the potential to automatically identify defect patterns and quantify the defects. In this study, both mathematical and physical models are discussed and linked. The basis of the selection of separated spatial and time patterns is also presented. In addition, a natural crack is applied to validate the proposed method.

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	Eddy Current Pulsed Thermography, single channel blind source separation, Pattern extraction, Non-destructive evaluation
Subjects:	H300 Mechanical Engineering
Department:	Faculties > Engineering and Environment > Computer and Information Sciences
Depositing User:	Paul Burns
Date Deposited:	07 May 2019 11:52
Last Modified:	10 Oct 2019 19:16
URI:	http://nrl.northumbria.ac.uk/id/eprint/39201

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