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author:

Zhao, Y. (Zhao, Y..) [1] | Chen, Y. (Chen, Y..) [2] | Rong, Y. (Rong, Y..) [3] | Xiong, S. (Xiong, S..) [4] | Lu, X. (Lu, X..) [5]

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Scopus

Abstract:

Aerial scene classification, aiming at assigning a specific semantic class to each aerial image, is a fundamental task in the remote sensing community. Aerial scene images have more diverse and complex geological features. While some statistics of images can be well fit using convolution, it limits such models to capturing the global context hidden in aerial scenes. Furthermore, to optimize the feature space, many methods add class information to the feature embedding space. However, they seldom combine model structure with class information to obtain more separable feature representations. In this article, we propose to address these limitations in a unified framework (i.e., CGFNet) from two aspects: focusing on the key information of input images and optimizing the feature space. Specifically, we propose a global-group attention module (GGAM) to adaptively learn and selectively focus on important information from input images. GGAM consists of two parallel branches: the adaptive global attention branch (AGAB) and the region-aware attention branch (RAAB). AGAB utilizes an adaptive pooling operation to better model the global context in aerial scenes. As a supplement to AGAB, RAAB combines grouping features with spatial attention to spatially enhance the semantic distribution of features (i.e., selectively focus on effective regions of features and ignore irrelevant semantic regions). In parallel, a focal attention loss (FA-Loss) is exploited to introduce class information into attention vector space, which can improve intraclass consistency and interclass separability. Experimental results on four publicly available and challenging datasets demonstrate the effectiveness of our method. The source code will be released at: https://github.com/zoecheno/CGFNet. © 1980-2012 IEEE.

Keyword:

Aerial scene classification attention convolutional neural networks (CNNs) loss function remote sensing

Community:

  • [ 1 ] [Zhao Y.]School of Computer Science and Artificial Intelligence, Wuhan University of Technology, Wuhan, 430070, China
  • [ 2 ] [Zhao Y.]Sanya Science and Education Innovation Park of Wuhan University of Technology, Sanya, 572000, China
  • [ 3 ] [Zhao Y.]Shanghai Artificial Intelligence Laboratory, Shanghai, 200232, China
  • [ 4 ] [Zhao Y.]Chongqing Research Institute, Wuhan University of Technology, Chongqing, 401122, China
  • [ 5 ] [Chen Y.]School of Computer Science and Artificial Intelligence, Wuhan University of Technology, Wuhan, 430070, China
  • [ 6 ] [Chen Y.]Sanya Science and Education Innovation Park of Wuhan University of Technology, Sanya, 572000, China
  • [ 7 ] [Chen Y.]Shanghai Artificial Intelligence Laboratory, Shanghai, 200232, China
  • [ 8 ] [Chen Y.]Chongqing Research Institute, Wuhan University of Technology, Chongqing, 401122, China
  • [ 9 ] [Rong Y.]School of Computer Science and Artificial Intelligence, Wuhan University of Technology, Wuhan, 430070, China
  • [ 10 ] [Rong Y.]Sanya Science and Education Innovation Park of Wuhan University of Technology, Sanya, 572000, China
  • [ 11 ] [Rong Y.]Shanghai Artificial Intelligence Laboratory, Shanghai, 200232, China
  • [ 12 ] [Rong Y.]Chongqing Research Institute, Wuhan University of Technology, Chongqing, 401122, China
  • [ 13 ] [Xiong S.]School of Computer Science and Artificial Intelligence, Wuhan University of Technology, Wuhan, 430070, China
  • [ 14 ] [Xiong S.]Sanya Science and Education Innovation Park of Wuhan University of Technology, Sanya, 572000, China
  • [ 15 ] [Xiong S.]Shanghai Artificial Intelligence Laboratory, Shanghai, 200232, China
  • [ 16 ] [Xiong S.]Chongqing Research Institute, Wuhan University of Technology, Chongqing, 401122, China
  • [ 17 ] [Lu X.]College of Physics and Information Engineering, Fuzhou University, Fuzhou, 350108, China

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Source :

IEEE Transactions on Geoscience and Remote Sensing

ISSN: 0196-2892

Year: 2024

Volume: 62

Page: 1-14

7 . 5 0 0

JCR@2023

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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