Application of distance transform to range image segmentation
Xiaoyi Jiang, Roland Robmann, Horst Bunke · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1992
In their range image segmentation algorithm Besl and Jain proposed the use of erosion for extracting seed regions. Based on these seed regions the initial, coarse image segmentation is refined by an iterative region growing method. In this paper we suggest a simple distance transform for seed region extraction. We discuss the various ways of actually computing the distance transform. Particularly, we compare two algorithms for this purpose: the well-known two-scans algorithm and another algorithm based on a fast computation method for the morphological operation erosion. Both theoretical analysis and experimental results show that our new seed region extraction algorithm is more efficient than that of Besl and Jain.