基于Smart 3D的多源影像实景三维建模研究

Three Dimensional Dioramas Modeling Research of Oblique Images Based on Smart 3D

摘要: 三维建模是工程设计规划、构建数字城市等领域参考分析的基础。新世纪以来随着倾斜摄影测量技术在测绘领域的蓬勃发展，如何提高三维建模的效率并使其单体化、精细化成为研究的热点。本文基于优化的倾斜影像数据采集方案，依据Smart 3D软件实景三维建模的方法流程，利用相机影像，手机相机影像和无人机倾斜影像快速进行区域实景三维建模。实验所得真三维模型的建模速度快、位置精度高、几何纹理精细，结果证明了利用该方法对地表大范围实景建模的可行性与可靠性。

Abstract: 3D modeling is the basis of reference and analysis in engineering design planning and construc-tion of digital cities and other fields. Since the new century, with the vigorous development of tilting photogrammetry technology in the field of surveying and mapping, how to improve the efficiency of 3D modeling and make it singular and refined has become a research hotspot. Based on the optimized oblique image data acquisition scheme, this paper uses the camera images, images of mobile phones and oblique images of unmanned aerial vehicle to quickly perform regional real-time 3D modeling based on the Smart 3D modeling method. The experimental results show that the real 3D modeling has the advantages of fast modeling speed, high positioning accuracy and fine geometric texture. The results prove the feasibility and reliability of the method for large-scale real-world surface modeling.