【摘要】 设计了一套基于机器视觉的三维轮廓检测系统,用于生产线上零件三维轮廓的在线检测,该系统主要由基于CCD的激光三角法数据采集模块、基于FPGA的嵌入式数据处理模块、基于USB总线的数据传输模块和基于OpenGL的图形显示模块组成.该系统结构紧凑,对于生产线上的高速运动物体,也能获得较高的分辨率.数据处理模块也允许多种算法在该平台上运行,便于实际应用中选择最优算法.通用的USB数据传输接口能提供较快的数据传输速度,允许在开机状态下插拔设备,避免了PCI等插槽式数据传输方式需要打开机箱的缺点.基于VC的显示模块,将检测结果以图形方式显示出来,更加直观,并且方便实现人机交互.更多还原

【Abstract】 A set of three-dimensional profile detection system based on machine vision is designed for profile detection of parts on product line.This system mainly consists of a data acquisition module based on CCD(charge coupled device),an embedded data processing module based on FPGA(field programmable gate array),a data transmitting module based on USB(universal serial bus),and an image display module based on OpenGL.The structure of this system is very compact,and it can reach higher resolution for parts moving in high speed on product line.Data processing module can run many arithmetics in it,therefore we can choose better.USB data transmitting interface offers faster data transmitting speed,and allows plugging and pulling device when the computer is powered on,so it avoids disadvantages of PCI(peripheral component interconnection) interface which is based on slot,and needs opening of the chassis.Display module based on VC shows detection result in graphic mode,it is more direct and conveniently realizes intercommunication between people and computer.更多还原