【摘要】 文章给出了机器视觉系统的基本组成及高精度视觉测量的实施对策 ,并以气门杆几何及形位参数检测为例 ,讨论了图像的采集、处理及达到亚像素边缘检测精度的软件设计 ,通过LOG算子、最小二乘线性估计等手段 ,使直线边缘定位精度达到亚像素级 ,在不增加硬件成本的前提下 ,达到了检测参数的精度设计要求。更多还原

【Abstract】 This paper presents the form of the machine vision system and countermeasure of high precise vision measurement system,as a example of the valve pole geometry, shape and position, we discusse the collection of figure, measurement and software design, using the Laplacian of a Guassian(LOG) function, MLS straight line fitting, realizing the sub-pixel edge location, achieving the demands of design.更多还原