摘要
激光三维扫描技术在工程地质勘察领域的广泛应用,使得三维地质建模的过程中不免要处理大量复杂的点云数据,因此,如何对点云数据进行有效处理,是影响建模质量的关键。介绍了逆向工程的基本思想和激光三维扫描技术的应用方法,以及三维地质点云数据的采集方法和过程。在此基础上,重点阐述了对点云数据进行拼合过程的数值原理和实现方法,讨论了点云数据处理的发展现状、应用前景和推广价值。分析认为,综合应用曲面数值模拟、三维数字重构、图像算法分析、程序可视化等方法,可以有效完成点云数据的处理和分析,满足三维地质建模的要求。
The extensive use of the reverse engineering method and 3--D laser scanning technology in the field of engineering geological survey make us have to deal with a large number of complex point cloud data in the process of three--dimensional geological modeling. Therefore, the effeetive treatment of point cloud data is the key to the influence of the modeling quality. The paper which is based on the fundamental process of the project geo- logical modeling has introduced the basle idea of reverse engineering and the application method with 3--D laser scanning technology, and the collecting means and the process of three -dimensional geological point cloud data. In the light of it, it has expounded emphatically the numerical principle and method in the process of the point cloud data combination. What＇s more, it has discussed the development status, applied prospects and promotion value of point cloud data processing. Depending on the analysis, through the comprehensive application in camber numerical simulation, three--dimensional digital reconstruction, image algorithms analysis and visualization procedures, we can complete the handling and analysis of the point cloud data processing effectively, and meet the requirements of three -dimensional geological modeling.
出处
《工程地球物理学报》
2009年第5期646-649,共4页
Chinese Journal of Engineering Geophysics
关键词
激光三维扫描
三维地质建模
逆向工程
点云
three- dimensional laser scanning
three- dimensional geological modeling
reverse engineering
point cloud
