A 3-subiteration 3D thinning algorithm for extracting medial surfaces

摘要

Thinning is an iterative layer by layer erosion for extracting skeletons. This paper presents an efficient 3D parallel thinning algorithm which produces medial surfaces. A 3-subiteration strategy is proposed: the thinning operation is changed from iteration to iteration with a period of 3 according to the three deletion directions.