手动PCB外观检查机的图像采集与拼接  

PCB appearance inspection machine manual image acquisition and stitching

作　　者：陈瑜[1] 叶玉堂[1] 罗颖[1] 王旭东[1] 

机构地区：[1]电子科技大学光电信息学院,四川成都610054

出　　处：《电子设计工程》2011年第4期120-123,127,共5页Electronic Design Engineering

摘　　要：利用Matrox图像采集卡,采用异步双缓存方法满足了PCB外观检查机图像采集和实时处理的需要。并针对PCB外观检查机采集的图像数据大精度高,需要实时拼接的特点,提出了将GDI+图形设备接口库与ActiveMil库采用结合应用的图像拼接方法。测试实例表明,图像采集速度提高了30%,非常适合应用在PCB外观检查机上,并且由于利用ActiveX组件缩短了开发周期。Asynchronous dual-cache method and MATROX frame grabber were used in PCB Appearance Inspection Machine for image acquisition and real-time processing. Because the images collected from PCB visual inspection machine were at high pixels,a method for Image Stitching was proposed based on combination of GDI ＋ graphics device interface library and ActiveMil library. As a result, the speed of image acquisition was increased by 30% and the development cycle was shorten by using ActiveX assembly.

关 键 词：PCB检测 双缓存异步采集系统 ActiveMil组件 图像拼接 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]