Cited by 86Remote-Sensing Image ClassificationAdvanced Image Fusion TechniquesAdvanced Neural Network Applications

DeepLab-Based Spatial Feature Extraction for Hyperspectral Image Classification

Niu, Zijia, Liu, Wen, Zhao, Jingyi, Jiang, Guoqian·2019·IEEE Geoscience and Remote Sensing Letters

Abstract

Recently, deep learning has been used for hyperspectral image classification (HSIC) due to its powerful feature learning and classification ability. In this letter, a novel deep learning-based framework based on DeepLab is proposed for HSIC. Inspired by the excellent performance of DeepLab in semantic segmentation, the proposed framework applies DeepLab to excavate spatial features of the hyperspectral image (HSI) pixel to pixel. It breaks through the limitation of patch-wise feature learning in the most of existing deep learning methods used in HSIC. More importantly, it can extract features at multiple scales and effectively avoid the reduction of spatial resolution. Furthermore, to improve the HSIC performance, the spatial features extracted by DeepLab and the spectral features are fused by a weighted fusion method, then the fused features are input into support vector machine for final classification. Experimental results on two public HSI data sets demonstrate that the proposed framework outperformed the traditional methods and the existing deep learning-based methods, especially for small-scale classes.

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Crossref · 10.1109/lgrs.2018.2871507

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  • Models like U-Net and DeepLab can be used for pixel-wise classification, which is useful in highly dense and occluded environments when individuals need to be segmented precisely and distinguish people from backgrounds at a pixel level.

    “Models like U-Net [58] and DeepLab [59] can be used for pixel-wise classification, which is useful in highly dense and occluded environments when individuals need to be segmented precisely and distinguish people from backgrounds at a pixel level.”

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Authors
Niu, Z., Liu, W., Zhao, J., & Jiang, G.
Affiliations
Yanshan University (CN)
Venue
IEEE Geoscience and Remote Sensing Letters
Published
2019-02
Volume
16
Issue
2
Pages
251-255
ISSN
  • 1545-598X (ISSN-L)
  • 1558-0571
OpenAlex
W2894561647
Cited by
86
References
22
Citations by year
2026: 5 · 2025: 10 · 2024: 17 · 2023: 10 · 2022: 14 · 2021: 12 · 2020: 16 · 2019: 2
FWCI
5.68
Type
journal article
Language
en
Open access
closed
Locations
IEEE Geoscience and Remote Sensing Letters (publishedVersion)
Funders
National Natural Science Foundation of China (51675461, 11673040, 61803329)
Topics
  • Physical Sciences › Engineering › Media Technology › Remote-Sensing Image Classification
  • Physical Sciences › Engineering › Media Technology › Advanced Image Fusion Techniques
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Advanced Neural Network Applications
Keywords
hyperspectral image classification, DeepLab, spatial feature extraction, semantic segmentation, multi-scale feature extraction, spectral-spatial fusion, weighted fusion, support vector machine, spatial resolution preservation

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