Abstract:Inspection of microdrill bits is very important for quality control in Printed Circuit Board (PCB) production. Traditional methods mainly focus on geometric defects inspection. This paper proposes a new automatic optical inspection scheme which can not only be used for geometric defects inspection but also identify the phase of microdrill bits. The paper also investigates the effect of a level set method as a reliable technique for exact segmentation of the cutting plane from the acquired microdrill bit image.… Show more
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