[1]LEI Tao,WANG Jie,XUE Dinghua,et al.Unsupervised SAR image change detection based on difference feature fusion[J].CAAI Transactions on Intelligent Systems,2021,16(3):595-604.[doi:10.11992/tis.202103011]
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
16
Number of periods:
2021 3
Page number:
595-604
Column:
人工智能院长论坛
Public date:
2021-05-05
- Title:
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Unsupervised SAR image change detection based on difference feature fusion
- Author(s):
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LEI Tao1; 2; WANG Jie3; XUE Dinghua3; WANG Xingwu2; DU Xiaogang2
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1. School of Electronic Information and Artificial Intelligence, Shaanxi University of Science and Technology, Xi’an 710021, China;
2. Shaanxi Joint Laboratory of Artificial Intelligence, Shaanxi University of Science and Technology, Xi’an 710021, China;
3. School of Electrical and Control Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
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- Keywords:
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SAR remote sensing image; change detection; unsupervised learning; convolution neural network; feature fusion; difference image; fuzzy c-means; Siamese network
- CLC:
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TP18
- DOI:
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10.11992/tis.202103011
- Abstract:
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The Siamese network ignores the correlation between different levels of different features, leading to limited detection accuracy. To overcome this limitation, an unsupervised synthetic aperture radar (SAR) image change detection algorithm based on the fusion of different features is proposed. The method uses log-ratio and mean-ratio operators to construct two complementary difference images and introduces an energy matrix to perform pixel-level fusion on these difference maps to improve its signal-noise ratio. Next, a Siamese network based on different feature fusion (DFF-Siamese) is designed. By introducing a difference feature extraction module, the DFF-Siamese comprehensively measure the differences and similarities between the multitemporal images using high-level semantic features, effectively improving the feature representation capability of the network. Finally, a fuzzy clustering algorithm is used to classify the fusion images to construct fake labels used to train the developed DFF-Siamese network, achieving accurate change detection for the SAR images. Experimental results from three real remote sensing datasets showed that the proposed method exhibits higher change detection accuracy with lower error rates compared with other popular algorithms.