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Medial Axis Transformation of a Planar Shape

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1 Author(s)
D. T. Lee ; MEMBER, IEEE, Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, IL 60201.

The medial axis transformation is a means first proposed by Blum to describe a shape. In this paper we present a 0(n log n) algorithm for computing the medial axis of a planar shape represented by an n-edge simple polygon. The algorithm is an improvement over most previously known results interms of both efficiency and exactness and has been implemented in Fortran. Some computer-plotted output of the program are also shown in the paper.

Published in:

IEEE Transactions on Pattern Analysis and Machine Intelligence  (Volume:PAMI-4 ,  Issue: 4 )