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《Journal of Yanshan University》 2010-04
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An algorithm of detecting surface defects of copper plating based on dynamic threshold

YUAN Hong-zhong, FU Wei, GUO Yong-kui (College of Information Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China)  
Detection of the surface defection based on computer vision is a main problem in detection field. Aiming at characteristic of surface defects of copper plating, a dynamic threshold method for the trait of defection in the surface of copper plating is put forward. In the algorithm, surface defects are detected through combining the gray feature of the whole and local using the difference between natural and defective surface. Experimental results show that the proposed algorithm can detect the position and area of defection effectively and meet the requirements of online detecting.
【CateGory Index】: TP274
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