Computer vision application for weld defect detection and evaluation

Yue Liu; Xiaohong Li; Dahai Ren; Shenghua Ye; Bengang Wang; Jie Sun

doi:10.1117/12.318417

10 August 1998 Computer vision application for weld defect detection and evaluation

Yue Liu, Xiaohong Li, Dahai Ren, Shenghua Ye, Bengang Wang, Jie Sun

Proceedings Volume 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II; (1998) https://doi.org/10.1117/12.318417
Event: Photonics China '98, 1998, Beijing, China

Abstract

This paper introduces the components of the hardware, software, working principle and the defect detection capacity of computer vision system for x-ray real time radiography weld defect detection and evaluation. Meanwhile, the image processing system is studied in which an image transformation algorithm is presented for defect extraction. Moreover, a sectional curve fitting algorithm and an algorithm based on probability are proposed to locate the defects. At the end of the paper, a pattern recognition method is introduced for the automatic identification of weld defects.

Citation Download Citation

Yue Liu, Xiaohong Li, Dahai Ren, Shenghua Ye, Bengang Wang, and Jie Sun "Computer vision application for weld defect detection and evaluation", Proc. SPIE 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, (10 August 1998); https://doi.org/10.1117/12.318417

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