A fuzzy spectral clustering algorithm for hyperspectral image classification
Abstract Spectral clustering is an unsupervised clustering algorithm, and is widely used in the field of pattern recognition and computer vision due to its good clustering performance. However, the traditional spectral clustering algorithm is not suitable for large‐scale data classification, such as...
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2021-10-01
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Series: | IET Image Processing |
Online Access: | https://doi.org/10.1049/ipr2.12266 |
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doaj-65d8ff7af53649dd8959d2bb8213ea6f2021-09-09T11:01:40ZengWileyIET Image Processing1751-96591751-96672021-10-0115122810281710.1049/ipr2.12266A fuzzy spectral clustering algorithm for hyperspectral image classificationKang Li0Jindong Xu1Tianyu Zhao2Zhaowei Liu3School of Computer and Control Engineering YanTai University YanTai ChinaSchool of Computer and Control Engineering YanTai University YanTai ChinaSchool of Computer and Control Engineering YanTai University YanTai ChinaSchool of Computer and Control Engineering YanTai University YanTai ChinaAbstract Spectral clustering is an unsupervised clustering algorithm, and is widely used in the field of pattern recognition and computer vision due to its good clustering performance. However, the traditional spectral clustering algorithm is not suitable for large‐scale data classification, such as hyperspectral remote sensing image, because of its high computational complexity, and it is difficult to characterize the inherent uncertainty of the hyperspectral remote sensing image. This paper uses fuzzy anchors to process hyperspectral image classification and proposes a novel spectral clustering algorithm based on fuzzy similarity measure. The proposed algorithm utilizes the fuzzy similarity measure to obtain the similarity between the data points and the anchors, and then gets the similarity matrix. Finally, spectral clustering is performed on the similarity matrix to compute the classification results. The experimental results on the hyperspectral remote sensing image data sets have demonstrated the effectiveness of the proposed algorithm, and the introduction of fuzzy similarity measure gives rise to a more robust similarity matrix. Compared with existing methods, the proposed algorithm has a better classification result on the hyperspectral remote sensing image, and the kappa coefficient obtained by the proposed algorithm is 2% higher than the traditional algorithms.https://doi.org/10.1049/ipr2.12266 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kang Li Jindong Xu Tianyu Zhao Zhaowei Liu |
spellingShingle |
Kang Li Jindong Xu Tianyu Zhao Zhaowei Liu A fuzzy spectral clustering algorithm for hyperspectral image classification IET Image Processing |
author_facet |
Kang Li Jindong Xu Tianyu Zhao Zhaowei Liu |
author_sort |
Kang Li |
title |
A fuzzy spectral clustering algorithm for hyperspectral image classification |
title_short |
A fuzzy spectral clustering algorithm for hyperspectral image classification |
title_full |
A fuzzy spectral clustering algorithm for hyperspectral image classification |
title_fullStr |
A fuzzy spectral clustering algorithm for hyperspectral image classification |
title_full_unstemmed |
A fuzzy spectral clustering algorithm for hyperspectral image classification |
title_sort |
fuzzy spectral clustering algorithm for hyperspectral image classification |
publisher |
Wiley |
series |
IET Image Processing |
issn |
1751-9659 1751-9667 |
publishDate |
2021-10-01 |
description |
Abstract Spectral clustering is an unsupervised clustering algorithm, and is widely used in the field of pattern recognition and computer vision due to its good clustering performance. However, the traditional spectral clustering algorithm is not suitable for large‐scale data classification, such as hyperspectral remote sensing image, because of its high computational complexity, and it is difficult to characterize the inherent uncertainty of the hyperspectral remote sensing image. This paper uses fuzzy anchors to process hyperspectral image classification and proposes a novel spectral clustering algorithm based on fuzzy similarity measure. The proposed algorithm utilizes the fuzzy similarity measure to obtain the similarity between the data points and the anchors, and then gets the similarity matrix. Finally, spectral clustering is performed on the similarity matrix to compute the classification results. The experimental results on the hyperspectral remote sensing image data sets have demonstrated the effectiveness of the proposed algorithm, and the introduction of fuzzy similarity measure gives rise to a more robust similarity matrix. Compared with existing methods, the proposed algorithm has a better classification result on the hyperspectral remote sensing image, and the kappa coefficient obtained by the proposed algorithm is 2% higher than the traditional algorithms. |
url |
https://doi.org/10.1049/ipr2.12266 |
work_keys_str_mv |
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1717761067073929216 |