An A-trimmed skeleton for modeling the global shape of polygons

Muh-Cherng Wu*, Jian Ren Chen, Jung-Hong Chuang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A skeleton is a global shape descriptor that aims to characterize the general appearance of an object to facilitate object classification. Various ways for defining the skeleton of a polygon have been proposed in the literature. Yet, in some cases, these previously proposed skeletons may not intuitively resemble the original polygons and cannot be a good shape descriptor. This research proposes a new definition of skeletons for modeling polygons. The proposed skeleton is termed the area-trimmed (A-trimmed) skeleton. In modeling the global shape of polygons, the A-trimmed skeleton performs much better than other skeletons proposed in the literature. The A-trimmed skeleton can be applied in group technology and facilitate tasks such as punched-part design and fixture design.

Original languageEnglish
Pages (from-to)1140-1147
Number of pages8
JournalInternational Journal of Advanced Manufacturing Technology
Issue number11-12
StatePublished - 1 Feb 2006


  • Global shape descriptor
  • Group technology
  • Medial axis
  • Polygon
  • Skeleton

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