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基于三维激光扫描的空间地物建模
引用本文:路兴昌,张艳红.基于三维激光扫描的空间地物建模[J].吉林大学学报(地球科学版),2008,38(1):167-171.
作者姓名:路兴昌  张艳红
作者单位:1. 吉林大学,地球探测科学与技术学院,长春,130026;中国科学院,东北地理与农业生态研究所,长春,130012
2. 吉林大学,地球探测科学与技术学院,长春,130026
基金项目:北京市属市管高等学校"学术创新团队计划"项目 , 北京市教委科技发展计划项目
摘    要:利用地面三维激光扫描仪获取的空间数据,进行了三维空间地物建模研究。以建筑物建模为例,首先从原始数据中分离提取建筑物,然后对得到的建筑物数据进行去噪处理,再通过整体匹配纠正并对原始测量数据进行重新采样和拼接配准,建立了由三角网构成的三维表面模型。结果表明,所构建的三维表面模型较好地表达了建筑物的几何特征,户外实验也验证了上述过程可以实现对建筑物快速三维建模。

关 键 词:激光扫描  三维建模  数据处理  三角网
文章编号:1671-5888(2008)01-0167-05
收稿时间:2007-01-04
修稿时间:2007年1月4日

Spatial Object Modeling Based on 3D Laser Scanning Data
LU Xing-chang,ZHANG Yan-hong.Spatial Object Modeling Based on 3D Laser Scanning Data[J].Journal of Jilin Unviersity:Earth Science Edition,2008,38(1):167-171.
Authors:LU Xing-chang  ZHANG Yan-hong
Abstract:Using the spatial data captured via ground-based three-dimensional(3D) laser scanner,a study on three-dimensional modeling of spatial objects was conducted.Taking a building modeling as the case study,the building objects to be modeled were extracted from the laser scanning data,and noise reduction was carried out on the objects data.To obtain a 3D surface model of the building,the noise-reduced building data were registered and matched with the original scan data,which were re-sampled and registered as well prior to the mosaic process.The triangular meshes of the building model were thus obtained.The modeling result showed that the constructed 3D surface model represented appropriately the geometric features of the building objects.The outdoor experiment indicated that the process mentioned above can bring about rapid 3D visualization modeling of buildings.
Keywords:laser scanning  three-dimensional modeling  data processing  triangular mesh
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