不同对齐方式在光学测量评价中的应用研究  

Application of Different Alignment Modes in Optical Measurement and Evaluation

作　　者：李雯 张弘 汪李炯 李银霞 徐磊 LI Wen;ZHANG Hong;WANG Li-jiong;LI Yin-xia;XU Lei(SAIC Volkswagen Co.Ltd.,Ningbo 315336,China)

机构地区：[1]上汽大众汽车有限公司,宁波315336

出　　处：《汽车科技》2022年第6期40-44,26,共6页Auto Sci-Tech

摘　　要：光学测量中,数据的有效拼接和坐标系的精准转换是保证结果精度的关键因素。本文基于GOM Inspect三维测量数据分析软件对测量点云进行处理,分别介绍了RPS对齐和局部最佳拟合两种对齐方式进行坐标系转换。结合实际测量案例,分析不同对齐方式对测量结果的影响,得到不同使用场景下的常用的对齐方式,为主机厂光学测量中坐标系的建立方式提供指导,使得光学测量结果更加精准可靠。In optical measurement,the effective data stitching and the accurate transformation of coordinate system are the key factors to ensure the accuracy of the results.Combined with actual measure cases,based on GOM Inspect software,this paper introduces RPS alignment and local best fitting to transform the coordinate system.The influence of different alignment methods on the measurement results was analyzed,and the common coordinate building methods under different using scenarios were put forward,which could provide guidance for the optical measurement evaluation in the main OEM,and made the optical measurement results more accurate and reliable.

关 键 词：光学测量 GOM Inspect RPS对齐 局部最佳拟合 坐标系转换 对齐方式 

分 类 号：U466[机械工程—车辆工程]