基于实景三维模型制作DLG线画图的优缺点  

The Advantages and Disadvantages of Making DLG Line Drawing Based on Real-life 3D Models

作　　者：陈嘉 CHEN Jia(Zunyi Water Resources and Hydropower Survey,Design and Research Institute CO.LTD.,Zunyi 563000,China)

机构地区：[1]遵义市水利水电勘测设计研究院有限责任公司,贵州遵义563000

出　　处：《河南水利与南水北调》2024年第4期82-83,共2页Henan Water Resources & South-to-North Water Diversion

摘　　要：摄影测量技术作为现代测绘技术中的主流技术,因其效率高并且人力物力消耗相对较小的特点,被广泛应用于各类工程项目。虽然传统摄影测量采用的普通立体测图能达到生产要求,但是在大比例尺地形图的制作中,应用倾斜摄影测量技术可高效解决传统单一视角在高建筑物密集的区域无法绘制出精确的地形图以及难以分辨判读出一些细节地物的问题。首先外业运用倾斜摄影测量采集影像数据,接着应用建模软件生产出三维模型,最后借助三维测图系统对已经建成的三维模型进行大比例尺地形图的绘制,在满足测图精度的同时也处理了一些传统立体像对测图难以解决的问题,符合现代测绘技术的要求。As the mainstream technology of modern surveying and mapping technology,photogrammetry is widely used in various engineering projects due to its high efficiency and relatively small consumption of manpower and material resource.Although the traditional stereoscopic mapping used in the traditional photogrammetry can meet the production requirements,the application of oblique photogrammetry technology in the production of large-scale topographic maps can efficiently solve the problems that the traditional single perspective is unable to draw accurate topographic maps in areas with dense buildings and it is difficult to distinguish and interpret some detailed features.Firstly,oblique photogrammetry is used in the field to collect image data.Then,modeling software is used to produce 3D models.Finally,a 3D mapping system is used to draw large-scale topographic maps of the already built 3D models.While meeting the accuracy of mapping,it also solves some problems that are difficult to be solved by traditional stereo imaging.It meets the requirements of modern surveying and mapping technology.

关 键 词：倾斜摄影测量 实景三维建模 三维测图技术 优缺点分析 

分 类 号：P282.2[天文地球—地图制图学与地理信息工程]