Local property of strong surfaces

Gilles Bertrand; Remy Malgouyres

doi:10.1117/12.292783

20 October 1997 Local property of strong surfaces

Gilles Bertrand, Remy Malgouyres

Proceedings Volume 3168, Vision Geometry VI; (1997) https://doi.org/10.1117/12.292783
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

A basic property of a simple closed surface is the Jordan property: the complement of the surface has two connected components. We call back-component any such component, and the union of a back-component and the surface is called the closure of this back-component. In an earlier work, we introduced the notion of strong surface as a surface which satisfies a global homotopy property: the closure of a back- component is strongly homotopic to that back-component. It means that we can homotopically remove any subset of a strong surface from the closure of a back-component. It was proved that the simple closed 26-surfaces defined by Morgenthaler and Rosenfeld, and the simple closed 18- surfaces defined by one of the authors are both strong surfaces. In this paper, some necessary local conditions for strong 26-surfaces are present. This is a first step towards a complete local characteristics of these surfaces.

Citation Download Citation

Gilles Bertrand and Remy Malgouyres "Local property of strong surfaces", Proc. SPIE 3168, Vision Geometry VI, (20 October 1997); https://doi.org/10.1117/12.292783

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