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Technical Articles From Al-Falah School of Engineering and Technology
Read technical articles about electronics manufacturing added by Al-Falah School of Engineering and Technology
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1 technical article added by Al-Falah School of Engineering and Technology
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Automatic PCB Defect Detection Using Image Substraction Method
Aug 08, 2013 | Sonal Kaushik, Javed Ashraf
In this project Machine Vision PCB Inspection System is applied at the first step of manufacturing, i.e., the making of bare PCB. We first compare a PCB standard image with a PCB image, using a simple subtraction algorithm that can highlight the main problem-regions. We have also seen the effect of noise in a PCB image that at what level this method is suitable to detect the faulty image. Our focus is to detect defects on printed circuit boards & to see the effect of noise. Typical defects that can be detected are over etchings (opens), under-etchings (shorts), holes etc......