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Sequence SAR Image Classification Based on Bidirectional Convolution-Recurrent Network
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DOI：10.1109/TGRS.2019.2925636.png)
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摘要
En 中文
Although the deep convolutional neural network (DCNN) has been successfully applied to target classification of military vehicles based on synthetic aperture radar (SAR), most of the available methods do not fully exploit the characteristics of continuous SAR imaging and only utilize single image for recognition. To extract significant identification features contained in the image sequence, this paper proposes a sequence of SAR target classification method based on bidirectional convolution-recurrent network. In this network, we extract spatial features of each image through DCNNs without the fully connected layer, and then learn sequence features by bidirectional long short-term memory networks. Finally, we design the average softmax classifier to obtain the classification results. Compared with the available methods, the proposed network takes advantage of the significant information in the image sequence and achieves higher classification accuracy in the moving and stationary target acquisition and recognition data set. In addition, it has shown robustness to large depression angle variants, configuration variants, and version variants.
Keyword:
Feature extraction
Synthetic aperture radar
Radar polarimetry
Convolution
Periodic structures
Image sequences
Kernel
Deep convolutional neural network (DCNN)
image sequence
long short-term memory (LSTM)
synthetic aperture radar (SAR)
target classification
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期刊
IF:
8.6
论文数:
2.2W
被引数:
10.7W
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