期刊
APPLIED SCIENCES-BASEL
卷 11, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/app11104377
关键词
ICA; Independent Component Analysis; ICT; Independent Component Thermography; PPT; Pulsed Phase Thermography; PCT; Principal Component Thermography; CFRP; Carbon Fiber Reinforced Polymer; Carbon Fiber Reinforced Plastic
类别
资金
- NSERC DG program
- Canada Research Chair Program (MIVIM Multipolar Infrared Vision Infrarouge Multipolaire)
The study found that Independent Component Analysis (ICA) outperforms Principal Component Thermography (PCT) in detecting small and deep defects in Pulsed Thermography (PT) data, with results influenced by the frequency of acquisition and the specific ICA method used.
Dimensional reduction methods have significantly improved the simplification of Pulsed Thermography (PT) data while improving the accuracy of the results. Such approaches reduce the quantity of data to analyze and improve the contrast of the main defects in the samples contributed to their popularity. Many works have been proposed in the literature mainly based on improving the Principal Component Thermography (PCT). Recently the Independent Component Analysis (ICA) has been a topic of attention. Many different approaches have been proposed in the literature to solve the ICA. In this paper, we investigated several recent ICA methods and evaluated their influence on PT data compared with the state-of-the-art methods. We conducted our evaluation on reference CFRP samples with known defects. We found that ICA outperform PCT for small and deep defects. For other defects ICA results are often not far from the results obtained by PCT. However, the frequency of acquisition and the ICA methods have a great influence on the results.
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