Level crossing curvature and the Laplacian

Guo Lei. Level crossing curvature and the Laplacian. Image Vision Comput., 6(3):185-188, 1988. [doi]

@article{Lei88,
  title = {Level crossing curvature and the Laplacian},
  author = {Guo Lei},
  year = {1988},
  doi = {10.1016/0262-8856(88)90025-X},
  url = {http://dx.doi.org/10.1016/0262-8856(88)90025-X},
  researchr = {https://researchr.org/publication/Lei88},
  cites = {0},
  citedby = {0},
  journal = {Image Vision Comput.},
  volume = {6},
  number = {3},
  pages = {185-188},
}