A multiscale parallel thinning algorithm

  • Jean-Luc Levaire
  • Stephane Ubeda
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 634)


This paper presents a new parallel thinning algorithm. Thinning algorithms based on contour tracing are strongly sequential and irregular, with a complexity of O(n2). Thinning algorithms using parallel neighboring operations are regular with a complexity of O(n3).

The parallel thinning approach we propose uses the notion of multi-scaling. This new algorithm keeps the regularity and parallelism of the neighboring operator while achieving a cost of O(n2). Complexity analysis and comparison with a well-known thinning algorithm using a SIMD machine are presented.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  1. 1.LIP, ENS LyonLyon Cedex 07France

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