摘要
大数据时代的来临以及数字城市概念的提出在一定程度上推动了地面激光雷达技术的发展,激光点云数据处理技术应运而生。激光点云曲面重构技术在三维可视化建模中起到举足轻重的作用。为验证曲面重构效果,本文使用Riegl-VZ1000地面三维激光扫描仪获取中国矿业大学南湖校区北门雕塑点云数据。经过点云数据预处理阶段后对其进行NURBS建模,并使用Geomagic Studio偏差分析模块逐站对比点云数据和重构曲面模型。实验结果表明,NURBS模型视觉效果良好、重构精度较高,平均偏差达到10-2mm数量级,基本与扫描原始点云一致,满足高精度建模的目的。
The era of big data and digital city concept, to a certain extent, promotes the development of terrestrial laser radar technology, laser point cloud data processing technology comes into being. The laser point cloud surface re- construction technology has played an important role in 3 D modeling. In order to verify the effect of the surface recon- struction, using Riegl-VZ1000 3D laser scanner to obtain the sculpture point cloud data. at the North gate in Nanhu campus of China University of Mining and Technology. After the point cloud data preprocessing phase, and modeling it by NVRBS. Using Geomagic Studio deviation analysis module to compare point cloud data and reconstructuring currve modol, The experimental results show that the NURBS model has good visual effect and high reconstruction precision, and the average deviation is 10-2mm, which is consistent with the original point cloud, and it satisfies the purpose of high precision model.
出处
《激光杂志》
北大核心
2017年第6期108-111,共4页
Laser Journal
基金
国家自然科学基金(51504239)
关键词
地面激光雷达
激光点云
点云数据处理
曲面重构
ground-based LIDAR
point cloud
point cloud processing
surface reconstruction
