【2017年整理】光学精密工程论文模板(表明格式要求).doc

文章编号 自动影像测量系统的设计（二号） 张舞杰，杨义禄，李迪，叶峰（四号） （华南理工大学 机械工程学院，广东 广州 510640）（五号） 摘 要：目的：为了实现对工件的自动影像测量，建立了自动影像测量系统。对该系统所采用的图元识别、图元测量、基于自动聚焦原理的高度测量等算法进行研究。方法：首先，根据圆形和矩形图元的面积和真圆度等特征参数介绍了图元识别算法。接着，以直线和圆形图元为例分析了典型图元的测量算法，即在提取图元边缘点的基础上进行图元拟合。然后，在分析比较能量谱等聚焦评价方法的性能的基础上，说明了采用自动聚焦原理进行高度测量的算法。最后，介绍了系统比例尺的设定方法以及光栅尺读数的误差补偿方法。结果：实验结果表明：比例尺的标定精度为0.5μm；图元的测量精度在微米级；高度测量精度为0.035mm。结论：基本满足自动影像测量的稳定可靠、精度高、抗干扰能力强等要求。（小五号） 关键词：计算机视觉；边缘检测；图元；曲线拟合；亚像素 （摘要和结论要有数据，要按照本格式写目的：方法，结果，结论分开写 中图分类号：TP394.1；TH691.9 文献标识码：A Design of automatic image measuring system ZHANG Wu-jie, YANG Yi-lu, LI Di, YE Feng （College of Mechanical Engineering, South China Univ. of Tech., Guangzhou 510641, China） Abstract: In order to realize automatic image measurement for parts, an automatic image measurement system is established and its applied algorithms such as geometric figure recognition and measurement, height measurement based on autofocus and etc is investigated.Method :First, based on image feature parameters such as area, Circularity, perimeter and etc, the recognition algorithms for typical geometric Figures of rectangle and circle are presented. Measuring principles and algorithms of typical plane geometric figures are analyzed by taking the measurements of the line and circle geometric figures as an example. i.e., the figure fitting is adopted after the edge points of geometric figures are extracted. Then after the performance of several autofocus evaluating methods is compared, the algorithm of height measurement by visual automatic focusing is analyzed. Finally, the method of scale setting up of measurement and the correction of the error of raster reading are discussed as well. Result: Experimental results indicate that the precision of the system’s scale setting up is 0.5μm and the measuring precision of figures is within micron, and the precision of height measurement is 0.035mm.Conclusion:It can satisfy the system requirements of non-contact, online, real time, higher precision and rapid speed,