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Hyperspectral image classification using graph-based wavelet transform

delete2019-12-06
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OA
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N
Nadia Zikiou *
M
Mourad Lahdir
D
David Helbert
DOI:10.1080/01431161.2019.1694194delete
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Abstract

Abstract

En 中文
Graph-based methods are developed to efficiently extract data information. In particular, these methods are adopted for high-dimensional data classification by exploiting information residing on weighted graphs. In this paper, we propose a new hyperspectral texture classifier based on graph-based wavelet transform. This recent graph transform allows extracting textural features from a constructed weighted graph using sparse representative pixels of hyperspectral image. Different measurements of spectral similarity between representative pixels are tested to decorrelate close pixels and improve the classification precision. To achieve the hyperspectral texture classification, Support Vector Machine is applied on spectral graph wavelet coefficients. Experimental results obtained by applying the proposed approach on Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) and Reflective Optics System Imaging Spectrometer (ROSIS) datasets provide good accuracy which could exceed 98.7%. Compared to other famous classification methods as conventional deep learning-based methods, the proposed method achieves better classification performance. Results have shown the effectiveness of the method in terms of robustness and accuracy.
Keywords:
SPECTRAL-SPATIAL CLASSIFICATION
FEATURE-SELECTION
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Journal

International Journal of Remote Sensing cover
International Journal of Remote Sensing
IF:
2.6
Papers:
1.2W
Citations:
2.7W

Organization

U
universite de poitiers
Scholars:
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Papers: 5.0K
Citations: 5
U
universite mouloud mammeri de tizi ouzou
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669
Papers: 450
Citations: 0