@article{wu2022sign,
  title={Sign steganography revisited with robust domain selection},
  author={Wu, Xiaoshuai and Qiao, Tong and Chen, Yanli and Xu, Ming and Zheng, Ning and Luo, Xiangyang},
  journal={Signal Processing},
  volume={196},
  pages={108522},
  year={2022},
  publisher={Elsevier}
}