无人机倾斜摄影测量在城市复杂地形三维建模中的应用

Application of UAV Oblique Photogrammetry Technology in 3D Modeling of Urban Complex Terrain

倾斜摄影测量技术作为新型测绘的主要数据收集方法之一,既可以得到常规航空摄影无法获取的地物立面纹理图像和几何信息,又可以迅速建立三维模型,同时具备了构建造型逼真、纹理丰富、模型精度高、制作周期短、对人工要求较低、成本低等优势。本文采用无人机倾斜摄影方法,利用软件实现了研究区域的实景三维建模,对整个技术应用过程进行了研究,并对数据质量进行了分析。结果显示,无人机倾斜摄影测量在三维建模中有着较突出的优点,模型精度能够满足实际作业需求,可为精度要求高的测绘项目提供有力的技术支撑。

Oblique photogrammetry is one of the new data acquisition methods for surveying and mapping.It can obtain the surface texture information and geometric information that can not be obtained by conventional aerial photography,and can quickly build a 3D model.It has the advantages of real modeling,rich texture,high precision,quick production process,less personnel demand and low cost.This article adopts UAV oblique photography method and uses software to achieve 3D real scene modeling of the research area.The entire technology application process is studied,and the data quality is analyzed.The results show that UAV oblique photography technology has obvious advantages in the process of 3D model construction,and the model accuracy can meet the actual production requirements,which can provide strong technical support for surveying and mapping projects with high accuracy requirements.