河流水陆一体化三维场景建模方法及可行性分析

Xiaoguang Ruan, Fanghao Yang, Meijing Guo, Chao Zou
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摘要

本文针对河流三维三维场景快速构建的问题,结合遥感、三维建模和CityEngine技术,构建了河流水陆一体化的三维场景模型重建方法。该方法包括水下地形的智能提取、水工建筑物的精细建模和水陆一体实景模型的构建。基于该方法,可以形成高保真的陆-水无缝数字地形和陆-水三维真实场景模型。通过实验验证了该方法的可行性和局限性。能够有效提取内陆河浅层水下地形,研究区整体精度小于2 m。无缝融合三维地形的性能优于公共数字高程模型数据集。在一至二类水质的内陆流域,可以满足河湖一体化三维场景模型的智能感知需求。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
3D Scene Modeling Method and Feasibility Analysis of River Water-Land Integration
Aiming at the problem of rapid construction of a river three-dimensional 3D scene, this article integrates remote sensing, 3D modeling, and CityEngine technology to construct a 3D scene model reconstruction method of river water-land integration. The method includes intelligent extraction of underwater topography, refined modeling of hydraulic structures, and construction of a water-land integrated real scene model. Based on this method, the high-fidelity land-underwater seamless digital terrain and the water-land 3D real scene models can be formed. Through experiments, the feasibility and limitations of this method are verified. It can effectively extract the shallow underwater terrain of inland rivers, and the overall accuracy of the study area is less than 2 m. The performance of the seamless fusion 3D terrain is better than the public digital elevation model data set. In the inland basin of Class I to II water quality, it can meet the needs of intelligent perception of a river- and lake-integrated 3D scene model.
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