摘要
针对中心对称结构古亭垂直度检测中由于结构复杂,各层中心点估计不精确的问题,提出依据古亭自身结构将古亭划分为底部、中部和顶部三个部分,并对各个部分采用不同的中心点提取方法。针对底部支撑圆柱部分,先拟合圆柱圆心坐标再估计中心点坐标;中部复杂结构部分,再采用三角剖分的方法估计中心点坐标;顶部采用先截取攒顶尖数据,依据攒顶尖数据拟合各层圆心坐标来估计中心点坐标。最后通过最小二乘拟合中心点坐标分析古亭的倾斜量,实验表明,该方法能够有效地实现对古亭的垂直度检测。
In order to solve the problem of imprecise estimation of center points in the verticality test of the ancient pavilion with central symmetric structure,it is proposed to divide the ancient pavilion into three parts according to its own structure:the bottom,the middle and the top,and to use different center point extraction methods for each part.For the bottom supporting part of the cylinder,the coordinates of the center of the cylinder are fitted first and then the coordinates of the center point are estimated.In the middle part of complex structure,the coordinates of center point are estimated by triangulation.At the top,the center point coordinates are estimated by intercepting the center data and fitting the center coordinates of each layer according to the center data.Finally,the coordinates of the center point with the least square fitting are used to analyze the inclination of the ancient pavilion.The experiment shows that this method can effectively measure the verticality of the ancient pavilion.
作者
闻亚
施向丰
WEN Ya;SHI Xiangfeng(Key Laboratory of Unmanned Aerial Vehicle Development&Data Application of Anhui Higher Education Institutes,Ma’anshan 243031,Anhui,China;School of Civil Engineering,Wanjiang University of Technology,Ma’anshan 243031,Anhui,China;School of Civil and Surveying&Mapping Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China)
出处
《江西理工大学学报》
CAS
2021年第1期47-51,共5页
Journal of Jiangxi University of Science and Technology
基金
安徽省教育厅无人机开发及数据应用重点实验室开放基金资助(WRJ19004)。
关键词
点云数据
最小二乘拟合
垂直度检测
中心点
point cloud data
least square fitting
perpendicularity measurement
center point
