A method for defect segmentation in digital radiographs of pipeline girth welds

Materials Evaluation

Volumn 54, Issue 8, 1996, Pages 925-928

  Hyatt, Roger ^a   Kechter, George E ^a   Nagashima, Shingo ^b  

^a BATTELLE MEMORIAL INSTITUTE   (United States)

^b TOKYO GAS CO LTD   (Japan)

Author keywords

Automated inspection; Digital radiography; Gauss pyramid; Image quality indicator; Image segmentation; Laplace pyramid; Multiscale filtering; Nondestructive testing; Radiographic inspection; Weld inspection

Indexed keywords

IMAGE SEGMENTATION; INSPECTION; PIPELINES; RADIOGRAPHY; WELDS; DIGITAL SIGNAL PROCESSING; IMAGE QUALITY; NONDESTRUCTIVE EXAMINATION; PIPE JOINTS; SIGNAL FILTERING AND PREDICTION;

AUTOMATED INSPECTION; DIGITAL RADIOGRAPHY; GAUSS PYRAMID; IMAGE QUALITY INDICATOR; IMAGES SEGMENTATIONS; LAPLACE PYRAMID; MULTI-SCALE FILTERING; QUALITY INDICATORS; RADIOGRAPHIC INSPECTION; WELD INSPECTION;

NONDESTRUCTIVE EXAMINATION; WELDS;

AUTOMATED INSPECTION; DEFECT SEGMENTATION; DIGITAL RADIOGRAPHY; GAUSS PYRAMID; IMAGE QUALITY INDICATOR; LAPLACE PYRAMID; MULTISCALE FILTERING; PIPELINE GIRTH WELDS;

EID: 0030216174     PISSN: 00255327     EISSN: None     Source Type: Trade Journal    
DOI: None     Document Type: Article

References (34)

1. Agapakis, J., and K. Masubuchi, "Expert Systems in Welding Fabrication; An Overview and Prototype," Seventh International Conference on Offshore Mechanics and Arctic Engineering, Houston, TX, Feb. 7-12, 1988, pp 139-146.
2. Arrondeau, P., and A. Charbonnier, "Robot for Real Time Radiographic Inspection of Circumferential Welds with Computer Processing of the Whole System," Non-Destructive Testing - Proceedings of the 4th European Conference, 1988, Vol. 3, pp 1575-1579. Pergamon Press, Oxford, England.
3. Betz, R., and R. Barry, "Description of a Rapid, High-Sensitivity Real-Time Radiographic System," Materials Evaluation, Vol. 46, No. 10, Oct. 1988, pp 1424-1428.
4. Boerner, H., and H. Strecker, "Automated X-Ray Inspection of Aluminum Castings," IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 10, No. 1, 1988, pp 79-91.
5. Bueno, C., M. Barker, P Condon, and R. Betz, "Solid-State X-Ray Imaging Methodology," USAF Wright Laboratories Report WL-TR-92-4003,1992.
6. Burch, S., "Digital Enhancement of Video Images for NDT," NDT International, Vol. 20, No. 1, 1987, pp 51-56.
7. Daum, W., P. Rose, and H. Heidt, "Automatische Erkennung von Schweißnahtfehlern in der Durchstrahlungsprüfung," Materialprüfung, Vol. 28, No. 6, 1986, pp 177-180.
8. Gayer, A., A. Saya, and A. Shiloh, "Automatic Recognition of Welding Defects in Real-Time Radiography," NDT International, Vol. 23, No. 3, 1990, pp 131-136.
9. Gonzalez, R., and P. Wintz, Digital Image Processing, 2nd Ed., 1987. Addison-Wesley, Reading, MA.
10. Halmshaw, R., and J. Ridyard, "A Review of Digital Radiological Methods," British Journal of NDT, Vol. 32, No. 1, 1990, pp 17-26.
11. Hellier, C., "Whaf s New in Nondestructive Testing of Welds and Heat-Affected Zones," Welding Journal, Vol. 72, No. 3, 1993, pp 39-49.
12. Jähne, B., Digital Image Processing: Concepts, Algorithms, and Scientific Applications, 2nd Ed., 1993. Springer-Verlag, Berlin, Germany.
13. Jain, A., Fundamentals of Digital Image Processing, 1989. Prentice Hall, Englewood Cliffs, NJ.
14. JIS-Z-3104-1968 Methods of Radiography and Classification for Steel Welds, Japanese Standards Association, 1968.
15. Kato, Y., Y. Sugita, K. Onda, E. Okudaira, S. Matsui, K. Itoga, and K. Sugimoto, "Development of Computer-Aided Radiographic Inspection System (I) Description of System," Proceedings of the 10th International Conference on NDE in the Nuclear and Pressure Vessel Industries, Glasgow, Scotland, ed. by M.J. Whittle, J.E. Doherty, and K. Iida, ASM International, 1990, pp 687-692.
16. Kech, R., and G. Coen, "Automatic Analysis of Defect Images in Radiographic Inspection," Metallurgical Plant and Technology, Vol. 11, No. 4, 1988, pp 66-67.
17. Kehoe, A., and G. Parker, "Image Processing for Industrial Radiographic Inspection: Image Enhancement," British Journal of NDT, Vol. 32, No. 4, 1990, pp 183-190.
18. Kehoe, A., and G. Parker, "An 1KB Defect Classification System for Automated Industrial Radiographic Inspection," Expert Systems, Vol. 8, No. 3, 1991, pp 149-157.
19. Kehoe, A., and G. Parker, "An Intelligent Knowledge Based Approach for the Automated Radiographic Inspection of Castings," NDT&E International, Vol. 25, No. 1, 1992, pp 23-36.
20. Lowrance, J., A. Cope, J. Herron, D. Gur, and E. Daxon, "Medical X-Ray Imaging Applications of the TEK2048 CCD," SPIE Proceeding on Charge-Coupled Devices and Solid State Optical Sensors, Ed. by M. Blouke, Vol. 1242, 1990, pp 59-65.
21. Mahalingam, S., and D. Sharma, "WELDEX - Expert System For Non-Destructive Testing of Welds," IEEE Computer Society Proceedings from the Second Conference on Artificial Intelligence Applications - The Engineering of Knowledge-Based Systems, 1985, pp 572-576.
22. McNab, A., and I. Dunlop, "AI Techniques Applied to the Classification of Welding Defects from Automated NDT Data," British Journal of NDT, Vol. 33, No. 1, 1991, pp 11-18.
23. Moores, B., "Digital X-Ray Imaging," IEE Proceedings, Vol. 134, Pt. A, No. 2, 1987, pp 115-124.
24. Munro, J., R. McNulty, W. Nuding, H. Busse, H. Wiacker, R. Link, K. Sauerwein, and R. Grimm, "Weld Inspection by Real-Time Radioscopy," Materials Evaluation, Vol. 45, No. 11, 1987, pp 1303-1309.
25. Onda, H., Y. Nishinaga, and K. Ono, "Welding Defect Identification by Artificial Neural Networks," in proceedings of the ASME JAPAN/USA Symposium on Flexible Automation, Vol. 1, 1992, pp 313-316.
26. Paton, B., V. Troitskii, and A. Lukash, "Principles of Constructing Expert Systems for Evaluating the Quality of Welded Components," Technical Diagnostics and Nondestructive Testing, Vol. 2, No. 4, 1990, pp 245-249.
27. Placious, R., D. Garrett, M. Kasen, and H. Berger, "Dimensioning Flaws in Pipeline Girth Welds by Radiographic Methods," Materials Evaluation, Vol. 39, No. 7, 1981, pp 755-760.
28. Placious, R., D. Polansky, H. Berger, C. Bueno, C. Vosberg, R. Betz, and D. Rogerson, "High-Density Glass Scintillator for Real-Time X-Ray Inspection," Materials Evaluation, Vol. 49, No. 11, 1991, pp 1419-1421.
29. Rudarmel, M., and J. Tucker, "Evaluation of the Feasibility of a Pipeline Field Weld Real-Time Radiography (Radioscopy) Inspection System," American Gas Association Final Report (PR-231-9419), Feb. 1995.
30. Shao, H., D. Miller, and C. Pearsall, "Scintillating Fiber Optics and Their Application in Radiographic Systems," IEEE Transactions on Nuclear Science, Vol. 38, No. 2, 1991, pp 845-857.
31. Sugita, Y., K. Onda, S. Iuchi, K. Itoga, T. Harada, K. Sugimoto, and K. Michiba, "Development of Computer-Aided Radiographic Inspection System (II): Method of Identification and Categorization of Welded Defects," Proceedings of the 10th International Conference on NDE in the Nuclear and Pressure Vessel Industries, Glasgow, Scotland, ed. by M.J. Whittle, J.E. Doherty, and K. Iida, 1990, pp 693-699, ASM International.
32. Wenk, S., "Radiographic Video Technique for Sizing Defects in Pipe Welds," Materials Evaluation, Vol. 39, No. 8, Jul. 1981, pp 748-751.
33. Wenk, S., R. Brokaw, and R. Schonberg, R., "The Potential of Real-Time Radiography for API 1104," Materials Evaluation, Vol. 41, No. 9, Aug. 1983, pp 1069-1073.
34. "X-Ray Real-Time Imaging (Radioscopy) for Weld Inspection: IIW Summary Report," British Journal of NDT, Vol. 32, No. 1, 1990, pp 9-13.