大区域多层级实景三维快速建模策略研究

Research on multilayer rapid real 3D modeling strategy for vast area

为解决大区域实景三维快速建模问题,提出一种多层级实景三维快速建模策略。首先根据不同区域建模精度要求与复杂程度划分建模层级,选用不同种类传感器获取多分辨率影像;然后依据数据特点设计像控点布设、多源数据空中三角测量(空三)以及实景三维模型生产和修饰策略,最终实现大区域实景三维建模。实验结果表明,方法可在较短时间内完成数千平方公里的建模任务,模型表达详略得当,并具有较好的几何精度。相关研究成果可为实施大型实景三维建模工程提供参考。

To solve the problem of rapid 3D modeling for vast area,this paper proposes a multilayer real 3D modeling strategy.Firstly,divide the modeling hierarchy based on different accuracy requirements and complexity levels,and selecting appropriate sensors to obtain multi-resolution images.Based on the characteristics of the images,design the layout of ground control points,multi-source data aerial triangulation,production and decoration strategies for 3D models.Ultimately,efficient 3D modeling of vast areas will be achieved.The experimental results show that this strategy can achieve thousands of square kilometers of 3D modeling in a relatively short time.The 3D model has good geometric accuracy and visual effects.The research results can serve as a reference for some similar projects.