Thresholding techniques and their performance evaluation for weld defect detection in radiographic testing

• Autorzy: Nacereddine N. , Hamami L. , Ziou D.
• Konferencja: International Conference on Computer Vision and Graphics ICCVG 2006 (25-27.09.2006 ; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

EN

In non-destructive testing with radiography, a perfect knowledge of the weld defect shape is an essential step to appreciate the quality of the weld and make decision on its acceptance or rejection. Because of the complex nature of the considered images, and in order that the detected defect region represent the real defect as accurately as possible, the choice of the thresholding methods must be made judiciously. In this paper, performance criteria are used to conduct a comparative study of the thresholding methods based on the gray level histogram, the 2D histogram and the locally adaptive approach to weld defect detection in radiographic images.

Słowa kluczowe

EN

1D and 2D histogram; locally adaptive approach; performance criteria; radiographic image; thresholding; weld defect

• Wydawca: Institute of Information Technology of the Warsaw University of Life Sciences – SGGW
• Czasopismo: Machine Graphics and Vision
• Rocznik: 2006
• Tom: Vol. 15, No. 3/4
• Strony: 557--566
• Opis fizyczny: Bibliogr. 19 poz., il., tab.

Twórcy

autor

Nacereddine N.

autor

Hamami L.

autor

Ziou D.

• Sign. and Imag. Proc. Laboratory, Research Center in Welding and NDT Route de Dely-Ibrahim, BP 64, Cheraga, 16600 Algiers, Algeria,

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