摘要
针对点云地理化的不确定性,该文对其进行了研究,首先提出了能有效描述标靶几何分布的奇异性指标,然后推导了奇异性指标计算公式及其与地理化参数的关系,发现地理化参数与标靶和扫描站构成几何图形的体积有关,通过实验验证了标靶几何分布与点云地理化参数、扫描坐标转换后精度的关系,并提出了在地面激光扫描实用过程中标靶布设原则。
Aiming at point clouds geo-referencing uncertainty,it had been deeply studied in this paper.Firstly,the singularity index was proposed which could effectively describe the geometrical distribution of the target,then the calculation formula of the singularity index and its relationship with the geo-referencing parameters were derived,and the relationship between geo-referencing parameters and the volume of the geometric figure of the target and the scanning station were found.At last,the contact between the target geometric distribution and point cloud geo-referencing parameters and accuracy of scanning coordinate conversion was verified through experiments,at the same time,principles about placing target reasonably were proposed during terrestrial laser scanning.
作者
田鹏艳
姚吉利
胥啸宇
杨承昆
赵雪莹
王建
赵龙
TIAN Pengyan;YAO Jili;XU Xiaoyu;YANG Chengkun;ZHAO Xueying;WANG Jian;ZHAO Long(School of Civil and Architectural Engineering,Shandong University of Technology, Zibo,Shandong 255000,China;Jinduicheng Molybdenum Co.,Ltd.,Luoyang, Henan 471233, China)
出处
《测绘科学》
CSCD
北大核心
2019年第4期182-187,202,共7页
Science of Surveying and Mapping
关键词
地面三维激光扫描
标靶视场角
体积率
标靶结构精度因子
几何精度因子
3项位置误差
terrestrial laser scanning
field of view of target
volume ratio
target dilution of precision
geometric dilution of precision(GDOP)
three position-error
