The crack detection in welds by radiographic testing is a very important task in NDT. This paper presents an automatic procedure to detect cracks in radiographs of welds. The described process consists of a combination of film digitization, image process-ing and neuronal networks. A comparison between this method and the results ob-tained by human inspectors is performed by the ROC-method. It is calculated for a set of ferrite and a set of austenitic welds.
Publication Source: International Symposium on Computerized Tomography for Industrial Applications and Image Processing in Radiology March, 15 - 17, 1999 Berlin, Germany. Proceedings BB 67-CD. Publisher:DGZfP - German Society of Non-Destructive Testing