@article{lui2008variational,
  title={Variational method on riemann surfaces using conformal parameterization and its applications to image processing},
  author={Lui, Lok Ming and Gu, Xianfeng and Chan, Tony F and Yau, Shing-Tung and others},
  journal={Methods and Applications of Analysis},
  volume={15},
  number={4},
  pages={513--538},
  year={2008},
  publisher={International Press of Boston}
}