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Evaluating cracking using image analysis / B. Pourdeyhimi in EUROPEAN COATINGS JOURNAL (ECJ), N° 11/95 (11/1995)

Titre :	Evaluating cracking using image analysis
Type de document :	texte imprimé
Auteurs :	B. Pourdeyhimi, Auteur ; F. Lee, Auteur
Année de publication :	1995
Article en page(s) :	p. 804-811
Note générale :	Bibliogr.
Langues :	Anglais (eng)
Catégories :	Algorithmes Imagerie (technique) Revêtements Revêtements -- Détérioration Revêtements -- Fissuration:Peinture -- Fissuration Simulation, Méthode de
Index. décimale :	667.9 Revêtements et enduits
Résumé :	Pictorial standards have been used for several decades for evaluating paint checking and cracking. While these are very easy to use and result in a rapid determination of the condition of a coated surface, damage assessment is qualitative and agreement among unbiased observers is seldom obtained. This paper introduces new image analysis algorithms for quantifying cracking. The accuracy of the method is compared to existing methods using simulated images with known crack attributes. The method is used to quantify degradation of the visual appearance of current pictorial standards used in evaluating paint degradation for cracking resistance. The method is equally useful in quantifying checking as well as other forms of cracking.
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