基于机器视觉的三维测量仪中激光条纹的提取算法

摘要

With the rapid development of manufacturing and machinery industry,there is an increasing need for obtai-ning objects’size or other information through three-dimensional (3D)measurement.In the various three-dimensional meas-urement methods,the 3D measuring instrument based on laser and machine vision stands out by its characteristics of accu-rate,fast,and not sensitive to surface color of object.A laser scanning measurement system based on machine vision should solve the following three problems in order:the first is that two-dimensional laser stripe image preprocessing,the second is the recognition and refinement of laser stripe,and the last one is the extraction of pixels of the laser stripe center.This arti-cle introduces the algorithm and implementation from the above three aspects.%随着制造业、机械行业的快速发展，对物体进行三维测量得到其尺寸等信息的需求越来越多。在众多三维测量方法中，基于激光和机器视觉的三维测量仪，以其准确、快速及对物体表面颜色不敏感等特性在应用领域脱颖而出，并占有一席之地。一个基于机器视觉的激光扫描测量系统应该顺序解决3个方面的问题：1)二维激光条纹图像的预处理；2)激光条纹的识别和细化；3)激光条纹的中心像素提取。从上述三方面介绍了算法的实现过程。