@INPROCEEDINGS{poan,
  author={Hu, Xiaowan and Wang, Haoqian and Cai, Yuanhao and Zhao, Xiaole and Zhang, Yulun},
  booktitle={ICME}, 
  title={Pyramid Orthogonal Attention Network based on Dual Self-Similarity for Accurate Mr Image Super-Resolution}, 
  year={2021}
}