多源数据融合的高层建筑物三维建模研究

Research on the 3D Modeling of High-Rise Buildings Based on Multi-Source Data Fusion

随着无人机的大规模普及,倾斜摄影测量技术应用越来越广泛,但是由于其技术特点,在数据采集过程中受角度、遮蔽等因素的影响,导致三维模型极易出现拉花、扭曲等问题。基于此,探讨了融合机载激光雷达(Light Laser Detection and Ranging,LiDAR)、地面数据采集和倾斜摄影技术的方法,以提高高层建筑物三维建模的精度和细节。机载LiDAR技术通过激光雷达扫描获取点云数据,提供建筑物的几何形状和细节信息,倾斜摄影技术可以提供建筑物纹理信息,与机载LiDAR技术结合可以提高建模的真实感和精度。点面三维激光扫描仪能够有效补充前两项技术的缺失,如补充细节数据。研究融合三种数据源的信息,综合利用它们的优势,为城市规划、建设和管理提供更准确、可靠的数据支持。

With the widespread use of unmanned aerial vehicles,the application of oblique photogrammetry tech-nology is becoming more and more extensive.However,due to its technical characteristics,it is affected by factors such as angles and occlusion during data acquisition,resulting in issues such as distortion and warping in 3D models.Therefore,this paper explores the method of integrating airborne LiDAR,ground data collection and oblique pho-togrammetry technologies to improve the accuracy and detail of the 3D modeling of high-rise buildings.Airborne LiDAR technology uses laser scanning to obtain point cloud data,and provide the geometric shape and detail infor-mation of buildings.Oblique photogrammetry technology can provide the texture information of buildings,and the combination of it and airborne LiDAR technology can improve the realism and accuracy of modeling.Terrestrial 3D laser scanners can effectively supplement the deficiencies of the previous two technologies and supplement de-tailed data.This study integrates information from three data sources and comprehensively utilizes their advantages,so as to provide more accurate and reliable data support for urban planning,construction and management.