基于倾斜三维模型的1∶500地形图测绘

随着倾斜摄影技术的不断发展,其成果实景三维模型的工程化应用一直以来都是研究热点。本文基于倾斜实景三维模型进行1∶500大比例尺地形图生产,总结了地形图生产的技术流程,提出了内业采集过程中针对点、线、面要素的采集方法,并结合生产案例及精度分析结果,验证了基于倾斜三维模型进行大比例尺测图的可行性,最后分析了地形图的主要误差源以及利用倾斜三维模型进行大比例尺测图存在的问题和建议。

Application Analysis of 1∶500 Topographic Map Surveying and Mapping Based on Oblique 3D Model

With the continuous development of oblique photography technology,the engineering application of 3D model of fruiting scenery has always been a research hotspot.Based on the production of 1∶500 large-scale topographic map with oblique 3D model,this paper summarizes the technical process of topographic map production,puts forward the collection method of point,line and surface elements in the process of internal collection,and verifies the feasibility of large-scale topographic map based on oblique 3D model combined with production cases and accuracy analysis results.Finally,the main error sources of topographic maps and the problems and suggestions of large-scale mapping using oblique 3D model are analyzed.