An Implicit Region-Based Deformable Model with Local Segmentation Applied To Weld Defects Extraction

Auteurs :  Y. Boutiche, N. Ramou, M. Ben Gharsallah
Année : 2012
Domaine : Electronique
Type : Communication
Conférence: World Academy of Science, Engineering and Technology 71 2012
Résumé en PDF :  (résumé en pdf)
Fulltext en PDF :  (.pdf)
Mots clés : Active contour, Chan-Vese Model, local segmentation, weld radiographic images

Résumé : 

This paper is devoted to present and discuss a model that allows a local segmentation by using statistical information of a given image. It is based on Chan-Vese model, curve evolution, partial differential equations and binary level sets method. The proposed model uses the piecewise constant approximation of Chan-Vese model to compute Signed Pressure Force (SPF) function, this one attracts the curve to the true object(s)’s boundaries.The implemented model is used to extract weld defects from weld radiographic images in the aim to calculate the perimeter and surfaces of those weld defects; encouraged resultants are obtained on synthetic and real radiographic images.