摘要
基于全站仪的测绘方法量程小,对于船体型线拼接接口处数据处理误差较大,因此设计一种基于三维激光电云的船体型线测绘方法。首先对三维激光点云数据进行预处理,不同视角下的舰船点云数据会出现重复造成误差,得到误差模型,在实际测绘中将误差考虑进去,使点云建模更精准,利用K-D树方法完成临近点云的搜索,并实现点云配准,将配准完毕的点云输入到软件中,得到舰船模型,实现体型线测绘。为验证测绘方法的有效性,设计对比实验。实验结果表明,设计方法测绘得到的各个测点挠度与基于全站仪测绘方法得到的测点挠度相比,更接近真实情况,验证了设计方法的有效性。
The surveying and mapping method based on total station has a small range and a large error in data processing at the interface of ship shape line.Therefore,a mapping method of ship shape line based on three-dimensional laser electric cloud is designed.Of 3 D laser point cloud data preprocessing,the ship point cloud data of different perspective will be repeated error caused by error model,in the heart of the actual surveying and mapping error into consideration,make some YunJianMo more accurate,using the K-D search tree method to complete the near point cloud,and realize the point cloud registration,point cloud registration completed by the input to the software,get the ship model,Realize shape line mapping.In order to verify the effectiveness of the surveying and mapping method,a comparative experiment was designed.The experimental results show that the deflection of each measuring point obtained by the design method is closer to the real situation than that obtained by the surveying and mapping method based on total station,which verifies the effectiveness of the design method.
作者
齐琳
韩复兴
王坤
QI Lin;HAN Fu-xing;WANG Kun(Jilin Communications Polytechnic,Changchun 130000,China;Jilin University,Changchun 130000,China)
出处
《舰船科学技术》
北大核心
2021年第18期10-12,共3页
Ship Science and Technology
基金
吉林省教育厅“十三五”科学研究规划项目(JJKH20200312KJ)
关键词
三维激光点云
船体型线测绘
测绘精度
K-D树
点云配准
3D laser point cloud
ship shape line mapping
surveying accuracy
K-D tree
point cloud registration
