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author:

Li, Z. (Li, Z..) [1] | Xu, W. (Xu, W..) [2] | Yang, S. (Yang, S..) [3] | Wang, J. (Wang, J..) [4] | Su, H. (Su, H..) [5] | Huang, Z. (Huang, Z..) [6] | Wu, S. (Wu, S..) [7]

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Scopus

Abstract:

Remote sensing scene classification (RSSC) is essential in Earth observation, with applications in land use, environmental status, urban development, and disaster risk assessment. However, redundant background interference, varying feature scales, and high inter-class similarity in remote sensing images present significant challenges for RSSC. To address these challenges, this paper proposes a novel hierarchical graph-enhanced transformer network (HGTNet) for RSSC. Initially, we introduce a dual attention (DA) module, which extracts key feature information from both the channel and spatial domains, effectively suppressing background noise. Subsequently, we meticulously design a three-stage hierarchical transformer extractor, incorporating a DA module at the bottleneck of each stage to facilitate information exchange between different stages, in conjunction with the Swin transformer block (STB) module to capture multi-scale global visual information. Moreover, we develop a fine-grained graph neural network (GNN) extractor that constructs the spatial topological relationships of pixel-level scene images, thereby aiding in the discrimination of similar complex scene categories. Finally, the visual features and spatial structural features are fully integrated and input into the classifier by employing skip connections. HGTNet achieves classification accuracies of 98.47%, 95.75%, and 96.33% on the aerial image, NWPU-RESISC45, and OPTIMAL-31 datasets, respectively, demonstrating superior performance compared to other state-of-the-art models. Extensive experimental results indicate that our proposed method effectively learns critical multi-scale visual features and distinguishes between similar complex scenes, thereby significantly enhancing the accuracy of RSSC.  © 2008-2012 IEEE.

Keyword:

Attention mechanism graph neural network remote sensing scene classification spatial structural feature transformer

Community:

  • [ 1 ] [Li Z.]Fuzhou University, Academy of Digital China Fujian, Fuzhou University Key Laboratory of Spatial Data Mining and Information Sharing, Ministry of Education, Fuzhou University National Local Joint Engineering Research Center of Satellite Geospatial Information Technology, Fuzhou, 350108, China
  • [ 2 ] [Xu W.]Fuzhou University, Academy of Digital China Fujian, Fuzhou University Key Laboratory of Spatial Data Mining and Information Sharing, Ministry of Education, Fuzhou University National and Local Joint Engineering Research Center of Satellite Geospatial Information Technology, The Digital Economy Alliance of Fujian, Fuzhou, 350108, China
  • [ 3 ] [Yang S.]Fuzhou University, Academy of Digital China Fujian, Fuzhou University Key Laboratory of Spatial Data Mining and Information Sharing, Ministry of Education, Fuzhou University National Local Joint Engineering Research Center of Satellite Geospatial Information Technology, Fuzhou, 350108, China
  • [ 4 ] [Wang J.]Fuzhou University, Academy of Digital China Fujian, Fuzhou University Key Laboratory of Spatial Data Mining and Information Sharing, Ministry of Education, Fuzhou University National Local Joint Engineering Research Center of Satellite Geospatial Information Technology, Fuzhou, 350108, China
  • [ 5 ] [Su H.]Fuzhou University, Academy of Digital China Fujian, Fuzhou University Key Laboratory of Spatial Data Mining and Information Sharing, Ministry of Education, Fuzhou University National Local Joint Engineering Research Center of Satellite Geospatial Information Technology, Fuzhou, 350108, China
  • [ 6 ] [Huang Z.]Fuzhou University, Academy of Digital China Fujian, Fuzhou University Key Laboratory of Spatial Data Mining and Information Sharing, Ministry of Education, Fuzhou University National Local Joint Engineering Research Center of Satellite Geospatial Information Technology, Fuzhou, 350108, China
  • [ 7 ] [Wu S.]Fuzhou University, Academy of Digital China Fujian, Fuzhou University Key Laboratory of Spatial Data Mining and Information Sharing, Ministry of Education, Fuzhou University National and Local Joint Engineering Research Center of Satellite Geospatial Information Technology, The Digital Economy Alliance of Fujian, Fuzhou, 350108, China

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Source :

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing

ISSN: 1939-1404

Year: 2024

Volume: 17

Page: 20315-20330

4 . 7 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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