Andrew Mehnert, Paul T. Jackway. On Computing the Exact Euclidean Distance Transform on Rectangular and Hexagonal Grids. Journal of Mathematical Imaging and Vision, 11(3):223-230, 1999. [doi]
@article{MehnertJ99,
title = {On Computing the Exact Euclidean Distance Transform on Rectangular and Hexagonal Grids},
author = {Andrew Mehnert and Paul T. Jackway},
year = {1999},
doi = {10.1023/A:1008352402867},
url = {http://dx.doi.org/10.1023/A:1008352402867},
researchr = {https://researchr.org/publication/MehnertJ99},
cites = {0},
citedby = {0},
journal = {Journal of Mathematical Imaging and Vision},
volume = {11},
number = {3},
pages = {223-230},
}