摘要
由于空中三角测量是倾斜摄影测量的核心技术,相机参数、大量影像外方位元素、大量点云的同时解算容易引起空三“不平”的问题.针对相机参数对空中三角测量的影响,以广泛应用的ContextCapture倾斜摄影测量软件为例,提出一种基于高精度平面格网的相机预标定方法,并且通过导入相机参数,改进因缺少相机初始参数导致ContextCapture软件空中三角测量解算分层、不平的问题.试验证明,引入相机预标定参数有利于提高空中三角测量解算的稳健性.
As aerial triangulation is the core technology of oblique photogrammetry,the simultaneous solution of camera parameters,a large number of image azimuths and a large number of point clouds is easy to cause the“uneven”problem of air and air.Aiming at the influence of camera parameters on aerial triangulation,taking ContextCapture tilt photogrammetry software as an example,a camera pre-calibration method based on high precision planar grid was proposed,and by importing camera parameters,The lack of initial camera parameters caused by ContextCapture aerial triangulation to solve the stratification and uneven problem.Experiments show that the introduction of camera precalibration parameters is beneficial to improve the robustness of aerial triangulation solution.
作者
冯一鸣
崔红霞
李嘉欣
闫业辰
FENG Yiming;CUI Hongxia;LI Jiaxin;YAN Yechen(College of Information Science and Technology,Bohai University,Jinzhou 121013,China)
出处
《渤海大学学报（自然科学版）》
CAS
2023年第1期92-96,共5页
Journal of Bohai University:Natural Science Edition
基金
2022年辽宁省科学事业公益研究基金项目(No:22022JH4/10100052).
