摘要
0引言
现代高精度加工系统中,常常需要对被加工工件的尺寸进行实时检测和控制.当工件处于高速运动或人无法接近的环境时(如激光照射),传统的接触式测量无法进行,而光学式测量仪在性能指标上又不能满足实际需求,因此需要一种高精度的测量系统.
In this paper a new high accuracy image measurement and registration system design is proposed, in which edges of image in pixel are detected by improved Canny operator, edge points are recorded by an auto-tracing algorithm, edges in sub-pixel are located by spatial moment-based operator. The object parameters are calculated by means of Least Squares and the accuracy is improved by a proposed algorithm. Finally an automatic detection, recognition and measurement algorithm is proposed. The simulation experiment on a standard circle shows the properties of validity, feasibility about the design and algorithm proposed.
出处
《计算机科学》
CSCD
北大核心
2003年第12期132-135,共4页
Computer Science
关键词
图像处理
图像测量
对准系统
算法
像素级边缘检测
计算机
Image measurement, Edge detection, Edge tracing, Registration, Sub-pixel, Space- moment ,Least squares method
