Thinning algorithms based on quadtree and octree representations.

Wai-Tak Wong Frank Y. Shih Te-Feng Su Thinning algorithms based on quadtree and octree representations. 1379-1394 2006 176 Inf. Sci. 10 http://dx.doi.org/10.1016/j.ins.2005.04.001 db/journals/isci/isci176.html#WongSS06