Hydraulic Engineering Topographic Mapping and Modeling Based on Three Dimensional Laser Scanning Technology

Abstract:

Topographic mapping and modeling is one of the most basic and important work in hydraulic engineering construction. This paper present a work flow which contains data measurement, pre-process and post-process with three dimensional laser scan technology. By adopting B-tree and its expansion structure, a multi-level point cloud management and storage method has been established. Then propose a contour generation method based on scan data and the equivalent point interpolation data. A self-adaptive mesh Delaunay algorithm is introduced with point cloud data in order to generate triangular irregular network digital elevation model. Finally, the modeling accuracy and error has been analysis, the results proves this method is with high efficient and accuracy and can be provide assistance for the project construction.

• Periodical: Applied Mechanics and Materials (Volumes 744-746)
• Pages: 1695-1700
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.744-746.1695
• Online since: March 2015
• Authors: Chao Hu, Yi Hong Zhou*, Chun Ju Zhao, Zhi Guo Pan
• Keywords: 3D Laser Scan, 3D Model, Contour, Hydraulic Engineering, Topography

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