基于T-MAC的高精度定位摄影测量光束法平差优化  

Optimization of Bundle Adjustment for High-precision Positioning Photogrammetry Based on T-MAC

作　　者：石竹风 李泷杲[1] 李根 曾琪[1] SHI Zhufeng;LI Shuanggao;LI Gen;ZENG Qi(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;Suzhou Research Institute,Nanjing University of Aeronautics and Astronautics,Suzhou 215000,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016 [2]南京航空航天大学苏州研究院,江苏苏州215000

出　　处：《机械制造与自动化》2023年第2期45-47,76,共4页Machine Building & Automation

摘　　要：为了构建高自动化程度的摄影测量系统,借助T-MAC激光跟踪系统和机器人完成相机定向,跟踪测量相机在不同摄站的位姿参数。设计一种基于T-MAC的高精度定位光束法平差优化方法,将相机位姿参数与待测点三维坐标共同作为平差参数,整体解算三维空间坐标值。试验结果表明:优化后平差结果的测量精度优于普通光束法平差,基准点测量方均根误差为0.194 2 mm,系统的稳定性好,重复性测量精度高。With the aim to construct highly automated photogrammetric system,by means of the T-MAC laser tracking system and the robot,camera orientation is completed,and the pose parameters of the camera at different camera positions are tracked and measured to design a T-MAC-based high-precision positioning bundle adjustment optimization method.The camera pose parameters and the three-dimensional coordinates of the point to be measured are used as adjustment parameters to calculate the three-dimensional space coordinate values as a whole.The experimental results show that the measurement accuracy of the optimized adjustment result is better than that of the ordinary bundle adjustment;the root mean square error of the reference point measurement is 0.1942 mm.The stability of the system is good with high repeatability measurement accuracy.

关 键 词：摄影测量 T-MAC 激光跟踪仪 相机定向 光束法平差 

分 类 号：TP216.1[自动化与计算机技术—检测技术与自动化装置]