@article{pang2019mathcal,
  title={R$\^{} 2$-CNN: Fast Tiny Object Detection in Large-Scale Remote Sensing Images},
  author={Pang, Jiangmiao and Li, Cong and Shi, Jianping and Xu, Zhihai and Feng, Huajun},
  journal={IEEE Transactions on Geoscience and Remote Sensing},
  volume={57},
  number={8},
  pages={5512--5524},
  year={2019},
  publisher={IEEE}
}