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RSS FeedsRemote Sensing, Vol. 13, Pages 4202: SAR Target Detection Based on Domain Adaptive Faster R-CNN with Small Training Data Size (Remote Sensing)

 
 

20 october 2021 13:10:22

 
Remote Sensing, Vol. 13, Pages 4202: SAR Target Detection Based on Domain Adaptive Faster R-CNN with Small Training Data Size (Remote Sensing)
 


It is expensive and time-consuming to obtain a large number of labeled synthetic aperture radar (SAR) images. In the task of small training data size, the results of target detection on SAR images using deep network approaches are usually not ideal. In this study, considering that optical remote sensing images are much easier to be labeled than SAR images, we assume to have a large number of labeled optical remote sensing images and a small number of labeled SAR images with the similar scenes, propose to transfer knowledge from optical remote sensing images to SAR images, and develop a domain adaptive Faster R-CNN for SAR target detection with small training data size. In the proposed method, in order to make full use of the label information and realize more accurate domain adaptation knowledge transfer, an instance level domain adaptation constraint is used rather than feature level domain adaptation constraint. Specifically, generative adversarial network (GAN) constraint is applied as the domain adaptation constraint in the adaptation module after the proposals of Faster R-CNN to achieve instance level domain adaptation and learn the transferable features. The experimental results on the measured SAR image dataset show that the proposed method has higher detection accuracy in the task of SAR target detection with small training data size than the traditional Faster R-CNN.


 
141 viewsCategory: Geology, Physics
 
Remote Sensing, Vol. 13, Pages 4201: SGA-Net: Self-Constructing Graph Attention Neural Network for Semantic Segmentation of Remote Sensing Images (Remote Sensing)
Remote Sensing, Vol. 13, Pages 4204: GRACE-FO Antenna Phase Center Modeling and Precise Orbit Determination with Single Receiver Ambiguity Resolution (Remote Sensing)
 
 
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