Staircase effect alleviation by coupling gradient fidelity term

@article{Lixin2008StaircaseEA,
  title={Staircase effect alleviation by coupling gradient fidelity term},
  author={Zhu Lixin and Xia Deshen},
  journal={Image Vision Comput.},
  year={2008},
  volume={26},
  pages={1163-1170}
}
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