@article{li2011removing,
  title={Removing label ambiguity in learning-based visual saliency estimation},
  author={Li, Jia and Xu, Dong and Gao, Wen},
  journal={IEEE Transactions on image processing},
  volume={21},
  number={4},
  pages={1513--1525},
  year={2011},
  publisher={IEEE}
}