A Fast Algorithm for Euclidean Distance Maps of a 2-D Binary Image.

Ling Chen Henry Y. H. Chuang A Fast Algorithm for Euclidean Distance Maps of a 2-D Binary Image. 25-29 1994 51 Inf. Process. Lett. 1 db/journals/ipl/ipl51.html#ChenC94 http://dx.doi.org/10.1016/0020-0190(94)00062-X