The DOI matches its Crossref record; 37 of the 37 references it cites were found in a registry or an index.
HybridSN: Exploring 3-D–2-D CNN Feature Hierarchy for Hyperspectral Image Classification
Open accessAbstract
Hyperspectral image (HSI) classification is widely used for the analysis of remotely sensed images. Hyperspectral imagery includes varying bands of images. Convolutional neural network (CNN) is one of the most frequently used deep learning-based methods for visual data processing. The use of CNN for HSI classification is also visible in recent works. These approaches are mostly based on 2-D CNN. On the other hand, the HSI classification performance is highly dependent on both spatial and spectral information. Very few methods have used the 3-D-CNN because of increased computational complexity. This letter proposes a hybrid spectral CNN (HybridSN) for HSI classification. In general, the HybridSN is a spectral-spatial 3-D-CNN followed by spatial 2-D-CNN. The 3-D-CNN facilitates the joint spatial-spectral feature representation from a stack of spectral bands. The 2-D-CNN on top of the 3-D-CNN further learns more abstract-level spatial representation. Moreover, the use of hybrid CNNs reduces the complexity of the model compared to the use of 3-D-CNN alone. To test the performance of this hybrid approach, very rigorous HSI classification experiments are performed over Indian Pines, University of Pavia, and Salinas Scene remote sensing data sets. The results are compared with the state-of-the-art hand-crafted as well as end-to-end deep learning-based methods. A very satisfactory performance is obtained using the proposed HybridSN for HSI classification. The source code can be found at https://github.com/gokriznastic/HybridSN.
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Hyperspectral Image Classification—Traditional to Deep Models: A Survey for Future Prospects
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Metadata
- Authors
- Roy, S. K., Krishna, G., Dubey, S. R., & Chaudhuri, B. B.
- Venue
- IEEE Geoscience and Remote Sensing Letters
- Published
- 2020-02
- Volume
- 17
- Issue
- 2
- Pages
- 277-281
- ISSN
- 1545-598X (ISSN-L)
- 1558-0571
- OpenAlex
- W2914331134
- Cited by
- 1,898
- References
- 37
- FWCI
- 89.86
- Type
- journal article
- Language
- en
- Open access
- green
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