【据日本《铁钢》1987年第5期报导】为了加强镀锡薄板成品的质量控制,日本钢管公司福山制铁厂在电镀锡生产线上设置了表面缺陷检出装置。该装置能自动判定缺陷的种类和等级,它和操作人员的目视检查相结合对成品卷进行分级评定,效果良好。该装置系采用激光定点方式,将缺陷信号以每个4mm×5mm的微小面积,用量子化专用硬件进行画象处理,然后用计算机解析缺陷的特征量,判定其种类和等级并在CRT [According to Japan’s “Iron and Steel” No. 5 of 1987] In order to strengthen the quality control of tinplate finished products, the Japanese steel company Fukuyama Iron Works in the electroplating tin production line set surface defect detection device. The device can automatically determine the type and level of defects, it and the operator’s visual inspection of the finished product volume grading assessment, the effect is good. The device uses laser fixed point mode, the defect signal to each 4mm × 5mm small area, using special hardware quantization image processing, and then use the computer to analyze the characteristics of defects, to determine the type and level of CRT