Abstract
Many skeletonization algorithms have been discussed in the literature, including the medial axis and thinning approaches [BO04][SSZ01] [PSB*01], but these algorithms may not generate stable skeletons. Based on the data processed, these techniques can be grouped under two categories: volume technique or mesh technique. Medical applications often involve volume data, e.g. DICOM, and thus volume techniques are commonly used. We propose a mesh technique, which is stable, to generate a hierarchy of skeletons from dense to coarse. An application can choose an appropriate level depending on the detail required. Our approach can also be extended to handle volume data. Figure 1 (b) to (d) shows three levels of detail of a horse object (Figure 1(a)) from dense to coarse.
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