摘要
为了解决在城市三维模型(LOD1.3级)快速构建中,对于城市内特殊形状、多结构、多细节的地标性建筑物和构筑物无法精确表达的问题,采用无人机搭载的倾斜摄影系统,通过多角度、多方向、多视角对地标性建筑物或构筑物进行拍摄,以获取大量的目标区域内详细的影像数据,这些影像数据经过处理后,可以生成高质量的MESH模型(OSGB格式)。然后结合单体化软件进行单体化精细化的建模(OBJ格式),把单体化三维模型成果纳入到三维模型(LOD1.3级)成果中。经对比,标志性建筑物单体化后的三维模型显示得更加逼真、贴近实际,且表面纹理采用真实纹理,更加详细,为城市的规划、设计、数据的查询和浏览提供了更加高精度时空基础的参考数据。
In order to solve the problem of inaccurate expression of landmark buildings and structures with special shapes,multiple structures,and multiple details in the rapid construction of urban 3D models(LOD1.3 level).Using a oblique photography system carried by drones,landmark buildings or structures are captured from multiple angles,directions,and perspectives to obtain a large amount of detailed image data within the target area.After processing,these image data can generate high-quality MESH models(OSGB format).Then,combined with individual modeling software,the modeling of individual refinement(OBJ format)is carried out,and the individual 3D model results are incorporated into the 3D model(LOD1.3 level)results.After comparison,the three-dimensional model of the iconic building,which has been individual modeled,displays more realistically and closely resembles reality,and the surface texture adopts real texture,which is more detailed.It provides more high-accuracy spatiotemporal reference data for urban planning,design,data query and browsing.
作者
陈昊
闫治刚
李文东
CHEN Hao;YAN Zhigang;LI Wendong(Jilin Institute of Fundamental Surveying and Mapping,Siping 136001,China)
出处
《测绘与空间地理信息》
2025年第S1期175-177,共3页
Geomatics & Spatial Information Technology
关键词
LOD1.3级
多结构
多细节
单体三维模型
LOD 1.3 level
multi-structure
multi-detail
individual three-dimensional models
作者简介
陈昊(1990-),男,辽宁锦州人,工程师,注册测绘师,本科学历,主要从事地理信息数据库建设、实景三维建模技术研究及生产工作。
