@article{lui2014shape,
  title={Shape analysis of planar multiply-connected objects using conformal welding},
  author={Lui, Lok Ming and Zeng, Wei and Yau, Shing-Tung and Gu, Xianfeng},
  journal={IEEE transactions on pattern analysis and machine intelligence},
  volume={36},
  number={7},
  pages={1384--1401},
  year={2014},
  publisher={IEEE}
}