Reaction-diffusion applied to discrete distorted circles for industrial control

Fabrice Mairesse; Tadeusz M. Sliwa; Yvon Voisin; Stéphane Binczak

doi:10.1117/12.736741

29 May 2007 Reaction-diffusion applied to discrete distorted circles for industrial control

Fabrice Mairesse, Tadeusz M. Sliwa, Yvon Voisin, Stéphane Binczak

Proceedings Volume 6356, Eighth International Conference on Quality Control by Artificial Vision; 63560V (2007) https://doi.org/10.1117/12.736741
Event: Eighth International Conference on Quality Control by Artificial Vision, 2007, Le Creusot, France

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.

Citation Download Citation

Fabrice Mairesse, Tadeusz M. Sliwa, Yvon Voisin, and Stéphane Binczak "Reaction-diffusion applied to discrete distorted circles for industrial control", Proc. SPIE 6356, Eighth International Conference on Quality Control by Artificial Vision, 63560V (29 May 2007); https://doi.org/10.1117/12.736741

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