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Identification of Corrosion Minerals Using Shortwave Infrared Hyperspectral Imaging
| Content Provider | MDPI |
|---|---|
| Author | Kerf, Thomas De Pipintakos, Georgios Zahiri, Zohreh Vanlanduit, Steve Scheunders, Paul |
| Copyright Year | 2022 |
| Description | In this study, we propose a new method to identify corrosion minerals in carbon steel using hyperspectral imaging (HSI) in the shortwave infrared range (900–1700 nm). Seven samples were artificially corroded using a neutral salt spray test and examined using a hyperspectral camera. A normalized cross-correlation algorithm is used to identify four different corrosion minerals (goethite, magnetite, lepidocrocite and hematite), using reference spectra. A Fourier Transform Infrared spectrometer (FTIR) analysis of the scraped corrosion powders was used as a ground truth to validate the results obtained by the hyperspectral camera. This comparison shows that the HSI technique effectively detects the dominant mineral present in the samples. In addition, HSI can also accurately predict the changes in mineral composition that occur over time. |
| Starting Page | 407 |
| e-ISSN | 14248220 |
| DOI | 10.3390/s22010407 |
| Journal | Sensors |
| Issue Number | 1 |
| Volume Number | 22 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-01-05 |
| Access Restriction | Open |
| Subject Keyword | Sensors Hyperspectral Imaging Ftir Corrosion Shortwave Infrared |
| Content Type | Text |
| Resource Type | Article |
