Introducing a Crystalline Flow for a Contour Figure Analysis(Special Issue on Multiresolution Analysis)
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概要
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We introduce a crystalline flow for a contour figure analysis. The crystalline flow is a special family of evolving polygons, and is considered as a discrete version of a classical curvature flow. In the evolving process of the crystalline flow, each facet moves toward its normal direction. The velocity of the facet is determined by the nonlocal curvature, which depends on the length of the facet. Different from a classical curvature flow, it is easy to track each facet in a given contour through the evolving process, because a given polygon remains polygonal. This aspect helps us to make a scale-space representation of a contour in an image. In this article, we present a method for extracting dominant corners using a crystalline now. Experimental results show that our method extracts several sets of dominant corner facets successfully from a given contour figure.
- 社団法人電子情報通信学会の論文
- 2003-07-01
著者
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Hontani Hidekata
Yamagata University
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Deguchi Koichiro
Graduate School Of Information Sciences Tohoku University
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