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- W4385444828 abstract "Abstract In recent years, remote sensing images of various types have found widespread applications in resource exploration, environmental protection, and feature classification. However, relying solely on a single optical or synthetic aperture radar (SAR) image as the data source for feature classification studies may not suffice to achieve the desired accuracy in ground information monitoring. One widely employed neural network for remote sensing image feature classification is the U-Net network, which is a classical semantic segmentation network. Nonetheless, the U-Net network has limitations such as poor classification accuracy, misclassification and omission of small-area features, and a large number of network parameters. To address these challenges, this research paper proposes an improved approach that combines both optical and SAR images in bands for feature classification and enhances the U-Net network. The approach incorporates several modifications to the network architecture. Firstly, the encoder-decoder framework serves as the backbone feature-extraction network. Additionally, a convolutional block attention mechanism is introduced in the feature extraction stage. Instead of pooling layers, convolutions with a step size of 2 are utilized, and the Leaky ReLU function is employed as the network's activation function. This design offers several advantages: it enhances the network's ability to capture feature characteristics from both spatial and channel dimensions, resolves the loss of feature map information while reducing network parameters, and ensures non-zero gradients during the training process. The effectiveness of the proposed method is evaluated through feature classification experiments conducted on optical, SAR, and combined optical and SAR datasets. The results demonstrate that our method achieves classification accuracies of 89.05%, 86.09%, and 90.89% on the three datasets, respectively, with corresponding mIoU values of 0.8104, 0.7804, and 0.8667. Compared to the traditional U-Net network, our method exhibits improvements in both classification accuracy and mIoU to a certain extent." @default.
- W4385444828 created "2023-08-02" @default.
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- W4385444828 date "2023-08-01" @default.
- W4385444828 modified "2023-10-18" @default.
- W4385444828 title "Feature Classification of Multi-source Remote Sensing Data Based on Improved U-Net Network" @default.
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- W4385444828 doi "https://doi.org/10.21203/rs.3.rs-3198546/v1" @default.
- W4385444828 hasPublicationYear "2023" @default.
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