Wire Detection from X-Ray CT image of PWB

Abstract

This paper proposes a technique of detecting wires on a printed wiring board(PWB) in a noisy image produced by x-ray CT. In the proposed method, we extract line features by using gabor filter and detect wires by these features. Firstly, Using gabor filters with various inclinations, we detect segments in different directions and produce binary images. Secondly, these produced images which contain a lot of noises are filtered in order to remove noises. Finally, we connect lines which become interrupted. Experimental results show that most wires can be detected.