Image processing and wavelets transform for sizing of weld defects using ultrasonic TOFD images

2008 ◽  
Vol 123 (5) ◽  
pp. 3083-3083 ◽  
Author(s):  
Ahmed Kechida ◽  
Redouane Drai ◽  
Abdelsaalam Benammar
Keyword(s):  
Image Processing ◽  
Weld Defects ◽  
Wavelets Transform

scholarly journals An Non Destructive Test for the Detection of Weld Defects Using Image Processing

2018 ◽  
Vol 9 (3) ◽  
pp. 764
Author(s):  
Kalaiselvi V ◽  
John Aravindhar D
Keyword(s):  
Image Processing ◽  
Welding Process ◽  
Ground Truth ◽  
Destructive Testing ◽  
X Ray ◽  
Weld Defects ◽  
Cad System ◽  
Sensitivity Specificity ◽  
Processing Techniques ◽  
Non Destructive

Welding is a fabrication of joining materials into one component. Defects are unavoidable during the welding process, and hence the inspection of welds is a most important task in many industries. In this work, a Computer Aided Detection (CAD) system is designed to detect weld defects based on image processing techniques. It is a non-destructive testing which uses X-ray images. The proposed system mainly consists of three stages; gradient image formation, filtration by Gaussian pyramidal filters algorithm and segmentation by Expectation and Maximization (EM) algorithm. In this study, GD X-ray weld image database is used to evaluate the proposed system. The performance analysis of the proposed system is done by measuring the sensitivity, specificity, and accuracy of the segmented image with the help of its corresponding ground truth images.

scholarly journals Image Processing by using Discrete Laguerre Wavelets Transform (DLWT)

2017 ◽  
Vol 171 (7) ◽  
pp. 28-39
Author(s):  
Bavanari Satyanarayana ◽  
Asma Abdulelah ◽  
Y. Pragathi
Keyword(s):  
Image Processing ◽  
Laguerre Wavelets ◽  
Wavelets Transform

scholarly journals Multi-angle excited MOI and image processing strategies specified for detection of orthogonal weld defects

2021 ◽  
Author(s):  
congyi wang ◽  
Xiangdong Gao ◽  
nvjie ma ◽  
Qianwen Liu ◽  
Guiqian liu ◽  
...  
Keyword(s):  
Image Processing ◽  
Weld Defects ◽  
Processing Strategies
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