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Learning Multiscale Deep Features for High-Resolution Satellite Image Scene Classification
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DOI：10.1109/TGRS.2017.2743243.png)
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摘要
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In this paper, we propose a multiscale deep feature learning method for high-resolution satellite image scene classification. Specifically, we first warp the original satellite image into multiple different scales. The images in each scale are employed to train a deep convolutional neural network (DCNN). However, simultaneously training multiple DCNNs is time-consuming. To address this issue, we explore DCNN with spatial pyramid pooling (SPP-net). Since different SPP-nets have the same number of parameters, which share the identical initial values, and only fine-tuning the parameters in fully connected layers ensures the effectiveness of each network, thereby greatly accelerating the training process. Then, the multiscale satellite images are fed into their corresponding SPP-nets, respectively, to extract multiscale deep features. Finally, a multiple kernel learning method is developed to automatically learn the optimal combination of such features. Experiments on two difficult data sets show that the proposed method achieves favorable performance compared with other state-of-the-art methods.
Keyword:
Deep convolutional neural networks (DCNNs)
feature fusion
multiple kernel learning (MKL)
multiscale deep features
satellite image classification
spatial pyramid pooling
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期刊
IF:
8.6
论文数:
2.2W
被引数:
10.7W
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