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Proceedings Paper

Reaction-diffusion applied to discrete distorted circles for industrial control
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Paper Abstract

In this article, a new implementation of active curves algorithms is proposed. It is question of an active region algorithm based on stationary states of a nonlinear diffusion principle. Its originality is to obtain a set of geometric envelopes in one pass, with a correspondence between level threshold of the grayscale result and a regularity scale, close to the original shape. This set of geometric envelopes gives a multiscale representation, from a very regular approximation to a full detailed and roughest representation. This property is used in a new subpixel circle center estimator developed in the purpose of distorted contours. Results are very promising as precision is noticeably improved compared to a least mean squares estimator. This estimator is then pretty well adapted to limit distortions caused by industrial processes.

Paper Details

Date Published: 29 May 2007
PDF: 10 pages
Proc. SPIE 6356, Eighth International Conference on Quality Control by Artificial Vision, 63560V (29 May 2007); doi: 10.1117/12.736741
Show Author Affiliations
Fabrice Mairesse, Le2i, CNRS, Univ. de Bourgogne (France)
Tadeusz M. Sliwa, Le2i, CNRS, Univ. de Bourgogne (France)
Yvon Voisin, Le2i, CNRS, Univ. de Bourgogne (France)
Stéphane Binczak, Le2i, CNRS, Univ. de Bourgogne (France)

Published in SPIE Proceedings Vol. 6356:
Eighth International Conference on Quality Control by Artificial Vision
David Fofi; Fabrice Meriaudeau, Editor(s)

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