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Land cover classification of high-resolution remote sensing images based on improved spectral clustering

Author

Listed:
  • Song Wu
  • Jian-Min Cao
  • Xin-Yu Zhao

Abstract

Applying unsupervised classification techniques on remote sensing images enables rapid land cover classification. Using remote sensing imagery from the ZY1-02D satellite’s VNIC and AHSI cameras as the basis, multi-source feature information encompassing spectral, edge shape, and texture features was extracted as the data source. The Lanczos algorithm, which determines the largest eigenpairs of a high-order matrix, was integrated with the spectral clustering algorithm to solve for eigenvalues and eigenvectors. The results indicate that this method can quickly and effectively classify land cover. The classification accuracy was significantly improved by incorporating multi-source feature information, with a kappa coefficient reaching 0.846. Compared to traditional classification methods, the improved spectral clustering algorithm demonstrated better adaptability to data distribution and superior clustering performance. This suggests that the method has strong recognition capabilities for pixels with complex spatial shapes, making it a high-performance, unsupervised classification approach.

Suggested Citation

  • Song Wu & Jian-Min Cao & Xin-Yu Zhao, 2025. "Land cover classification of high-resolution remote sensing images based on improved spectral clustering," PLOS ONE, Public Library of Science, vol. 20(2), pages 1-18, February.
    • Handle: RePEc:plo:pone00:0316830
    DOI: 10.1371/journal.pone.0316830
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    References listed on IDEAS

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    1. Susanna Röblitz & Marcus Weber, 2013. "Fuzzy spectral clustering by PCCA+: application to Markov state models and data classification," Advances in Data Analysis and Classification, Springer;German Classification Society - Gesellschaft für Klassifikation (GfKl);Japanese Classification Society (JCS);Classification and Data Analysis Group of the Italian Statistical Society (CLADAG);International Federation of Classification Societies (IFCS), vol. 7(2), pages 147-179, June.
    2. Cinzia Di Nuzzo, 2024. "Advancing Spectral Clustering for Categorical and Mixed-Type Data: Insights and Applications," Mathematics, MDPI, vol. 12(4), pages 1-16, February.
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