基于三维激光扫描的空间地物建模

基于三维激光扫描的空间地物建模

路兴昌^1,2，张艳红¹

1.吉林大学地球探测科学与技术学院，长春 130026;2.中国科学院东北地理与农业生态研究所，长春 130012

收稿日期:2007-01-04 修回日期:1900-01-01 出版日期:2008-01-26 发布日期:2008-01-26
通讯作者: 路兴昌

Spatial Object Modeling Based on 3D Laser Scanning Data

LU Xing-chang^{1, 2}，ZHANG Yan-hong¹

1, College of GeoExploration Science and Technology, Jilin University, Changchun 130026, China;2. Northeast Institute of Geography and Agricultural Ecology, CAS, Changchun 130012, China

Received:2007-01-04 Revised:1900-01-01 Online:2008-01-26 Published:2008-01-26
Contact: LU Xing-chang

摘要/Abstract

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

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 visualiz ation modeling of buildings.

Key words: laser scanning, three-dimensional modeling, data processing, triangular mesh

中图分类号:

TP391.9

路兴昌，张艳红. 基于三维激光扫描的空间地物建模[J]. J4, 2008, 38(1): 167-0171.

LU Xing-chang，ZHANG Yan-hong. Spatial Object Modeling Based on 3D Laser Scanning Data[J]. J4, 2008, 38(1): 167-0171.

参考文献

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