Automatic inspection of weld defects with x-ray real-time imaging

Abstract

A real-time automatic inspection algorithm of weld defects in X-ray images was developed in this paper. Using optimized image smoothing and image information fusion based heuristic best-first search techniques, the algorithm can detect different kinds of defects in weld, such as slag inclusion, blow hole, incomplete penetration, lack of fusion and undercut etc. Experiments show that the algorithm is efficient, reliable and can be used for industrial purpose. © 2007 Springer-Verlag Berlin Heidelberg.