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29 May 2007 Reaction-diffusion applied to discrete distorted circles for industrial control
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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.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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); doi: 10.1117/12.736741; https://doi.org/10.1117/12.736741
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