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A Continuous Skeletonization Method Based on Distance Transform

  • Ting-Qin Yan
  • Chang-Xiong Zhou
Part of the Communications in Computer and Information Science book series (CCIS, volume 304)

Abstract

A skeleton extracted by distance map is located at geometrical center, but it is discrete, on the other hand, we can get a continuous skeleton with morphological algorithm, but the skeleton is not located at the geometrical center of the object image. To get a continuous skeleton that is located at geometrical center of the object image, a continuous skeletonization method based on distance transform is proposed in this paper. At first, the distance function is calculated with respect to the object boundary, which is defined as a new indicator for the skeletonization. Then, a thinning algorithm with five deletion templates is given, which can be applied to get a continuous and centered skeleton indicated by distance map. The performance of the proposed algorithm is compared with existing algorithms, experimental results confirm the superiority of our proposed approach.

Keywords

Skeletonization Distance map Morphology Thinning 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Ting-Qin Yan
    • 1
    • 2
  • Chang-Xiong Zhou
    • 1
  1. 1.Depart of Electronic Information EngineeringSuzhou Vocational UniversitySuzhouChina
  2. 2.Suzhou Key Lab of Digital Design & Manufacturing TechnologySuzhouChina

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