Abstract
A novel unsupervised sparse component extraction algorithm is proposed for detecting micro defects while employing a thermography imaging system. The proposed approach is developed using the variational Bayesian framework. This enables a fully automated determination of the model parameters and bypasses the need for human intervention in manually selecting the appropriate image contrast frames. An internal subsparse grouping mechanism and adaptive fine-tuning strategy have been built to control the sparsity of the solution. The proposed algorithm is computationally affordable and yields a high-accuracy objective performance. Experimental tests on both artificial and natural defects have been conducted to verify the efficacy of the proposed method.
| Original language | English |
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| Title of host publication | ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings |
| Publisher | IEEE |
| Pages | 1518-1522 |
| Number of pages | 5 |
| ISBN (Electronic) | 9781538646588, 9781538646571 |
| ISBN (Print) | 9781538646595 |
| DOIs | |
| Publication status | Published - 13 Sept 2018 |
| Event | 2018 IEEE International Conference on Acoustics, Speech and Signal Processing: Signal Processing and Artificial Intelligence: Changing the World - Calgary Telus Convention Center, Calgary, Canada Duration: 15 Apr 2018 → 20 Apr 2018 https://2018.ieeeicassp.org/default.asp |
Publication series
| Name | ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings |
|---|---|
| Publisher | IEEE |
| Volume | 2018-April |
| ISSN (Electronic) | 2379-190X |
Conference
| Conference | 2018 IEEE International Conference on Acoustics, Speech and Signal Processing |
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| Abbreviated title | ICASSP 2018 |
| Country/Territory | Canada |
| City | Calgary |
| Period | 15/04/18 → 20/04/18 |
| Internet address |
Keywords
- Diagnostic imaging system
- Low-rank decomposition
- Sparse decomposition
- Variational Bayes