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Parametric active contour for boundaryestimation of weld defects in radiographic testing

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International Symposium on Signal Processing and Its Applications. (ISSPA) 2007

Parametric active contour for boundary

estimation of weld defects in radiographic testing

A. B. Goumeidane, M. Khamadja, C. Odet

Abstract : In this paper we present a new approach to deal with the defects contours estimation problem in radiographic images using parametric active contours. In this approach we exploit the performance of the GVF as external force and enhance it by joining to it external adaptive pressure forces which bring speed to the snake evolution and less sensitivity to the snake initialization and provides capability of tracking the concavities.

Keywords : Active contour, GVF, Pression forces, radiographic images

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