Computer Vision System For Inspecting Defects In Welding Seams Based On X-Ray Pictures

Nanning Zheng; Xiaoyu Duan; Wei Lin

doi:10.1117/12.962351

30 January 1990 Computer Vision System For Inspecting Defects In Welding Seams Based On X-Ray Pictures

Nanning Zheng, Xiaoyu Duan, Wei Lin

Proceedings Volume 1153, Applications of Digital Image Processing XII; (1990) https://doi.org/10.1117/12.962351
Event: 33rd Annual Technical Symposium, 1989, San Diego, United States

Abstract

This paper presents a new special computer vision system to inspect the defects in welding seams of acetylene cans based on X-ray pictures. The system configuration is introduced briefly and basic problems are discussed. A high resolution CCD linear array camera is used for scanning pictures displaied the screen on X-ray image intensifier. We propose several new methods to determine the defect position and representation, to reconstruct the defect boundary, and to extract local features for defect classification. Experimental results show that the proposed methods are effective. The system can distinguish a minimum of l6 decimillimetres defective patterns. Further investigations are suggestedd on more generality of the methods and more reliable stability of the inspection.

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Nanning Zheng, Xiaoyu Duan, and Wei Lin "Computer Vision System For Inspecting Defects In Welding Seams Based On X-Ray Pictures", Proc. SPIE 1153, Applications of Digital Image Processing XII, (30 January 1990); https://doi.org/10.1117/12.962351

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KEYWORDS

Inspection

Computing systems

Image processing

X-rays

Machine vision

Computer vision technology

Digital image processing

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