Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Machine Graphics and Vision

1 2006

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: 1D and 2D histogram

Sortuj według:

Ogranicz wyniki do:

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

Nacereddine N., Hamami L., Ziou D.

Machine Graphics and Vision

2006

Vol. 15, No. 3/4

557-566

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.