@ARTICLE{8763926,
  author={Zhu, Hao and Zhang, Qi and Wang, Qing and Li, Hongdong},
  journal={IEEE Transactions on Image Processing}, 
  title={4D Light Field Superpixel and Segmentation}, 
  year={2020},
  volume={29},
  number={},
  pages={85-99},
  doi={10.1109/TIP.2019.2927330}}