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HANet: A Hierarchical Attention Network for Change Detection With Bitemporal Very-High-Resolution Remote Sensing Images
Open accessAbstract
Benefiting from the developments in deep learning technology, deep learning-based algorithms employing automatic feature extraction have achieved remarkable performance on the change detection (CD) task. However, the performance of existing deep learning-based CD methods is hindered by the imbalance between changed and unchanged pixels. To tackle this problem, a progressive foreground-balanced sampling (PFBS) strategy on the basis of not adding change information is proposed to help the model accurately learn the features of the changed pixels during the early training process and thereby improve detection performance. Furthermore, we design a discriminative Siamese network, Hierarchical Attention Network (HANet), which can integrate multi-scale features and refine detailed features. The main part of HANet is the HAN module, which is a lightweight and effective self-attention mechanism. Extensive experiments and ablation studies on two CD datasets with extremely unbalanced labels validate the effectiveness and efficiency of the proposed method. Our model is available athttps://github.com/ChengxiHAN/HANet-CD.
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Exploiting Generative AI to Scale up Intelligent Tutoring Systems
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Fully convolutional networks for semantic segmentation
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Metadata
- Authors
- Han, C., Wu, C., Guo, H., Hu, M., & Chen, H.
- Venue
- IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
- Published
- 2023
- Volume
- 16
- Pages
- 3867-3878
- ISSN
- 1939-1404 (ISSN-L)
- 2151-1535
- OpenAlex
- W4362653113
- Cited by
- 259
- References
- 50
- FWCI
- 28.60
- Type
- journal article
- Language
- en
- Open access
- gold
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- Han, C., Wu, C., Guo, H., Hu, M., & Chen, H. (2023). HANet: A Hierarchical Attention Network for Change Detection With Bitemporal Very-High-Resolution Remote Sensing Images. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing. https://doi.org/10.1109/jstars.2023.3264802
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