Abstract
In this work, a novel algorithm called SVM with Shape-adaptive Reconstruction and Smoothed Total Variation (SaR-SVM-STV) is introduced to classify hyperspectral images, which makes full use of spatial and spectral information. The Shape-adaptive Reconstruction (SaR) is introduced to preprocess each pixel based on the Pearson Correlation be-tween pixels in its shape-adaptive (SA) region. Support Vector Machines (SVMs) are trained to estimate the pixel-wise probability maps of each class. Then the Smoothed Total Variation (STV) model is applied to denoise and generate the final classification map. Experiments show that SaR-SVM-STY outperforms the SVM-STV method with a few training labels, demonstrating the significance of reconstructing hy-perspectral images before classification.
Original language | English |
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Title of host publication | IGARSS 2022: 2022 IEEE International Geoscience and Remote Sensing Symposium, Proceedings |
Publisher | IEEE |
Pages | 1368-1371 |
Number of pages | 4 |
ISBN (Electronic) | 9781665427920 |
ISBN (Print) | 9781665427937 |
DOIs | |
Publication status | Published - 2022 |
Externally published | Yes |
Event | 2022 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2022 - Kuala Lumpur, Malaysia Duration: 17 Jul 2022 → 22 Jul 2022 |
Publication series
Name | International Geoscience and Remote Sensing Symposium (IGARSS) |
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Volume | 2022-July |
Conference
Conference | 2022 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2022 |
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Country/Territory | Malaysia |
City | Kuala Lumpur |
Period | 17/07/22 → 22/07/22 |
Bibliographical note
Publisher Copyright:© 2022 IEEE.
Funding
This work was supported in part by HKRGC Grants No. CUHK14301718, CityU11301120, C1013-21GF, CityU Grant 9380101.
Keywords
- Hyperspectral Image Classification
- Image Reconstruction
- Semi-supervised Learning
- Smoothed To-tal Variation
- Support Vector Machines