摘要
倾斜摄影实景三维模型是由连续的三角网通过纹理贴图组成,模型上各地理要素具有"一张皮"的特点。针对无法管理与编辑模型上各地理对象的问题,本文提出了基于倾斜摄影实景模型进行单体化建模的技术方法。首先,利用倾斜航空摄影技术,探讨了基于Street Factory实景三维模型全自动构建方法;然后,以生成的实景三维模型为基础,利用倾斜摄影实景模型单体化建模方法,完成了地理对象单体化模型与属性数据库的搭建。本文以土默特右旗城区为试验区,通过对空三加密的精度分析,有效验证了本文实景三维模型的构建精度,为模型中地理对象属性的查询、管理和应用提供了方便,有效扩大了模型数据的应用领域,对内蒙古智慧城市建设具有一定的参考价值。
The 3D real scene model of oblique photography is composed of a continuous triangular net through texture mapping,and each geographic element on the model has the characteristic of "a piece of skin". In view of the existing problem of the inability to manage and edit the geographical objects on the model,this paper proposes a technical method for single modeling based on oblique photography real scene model. Firstly,the method of fully automatic construction based on Street Factory’s real-scene 3D model is discussed by using oblique photography technology. Then,based on the generated three-dimensional real scene model,the single modeling method of the oblique photography real scene model is used to complete the construction of the geographical object single model and the attribute database connection. This paper takes the urban area of Tumote Right Banner as the test area. Through the accuracy analysis of aerial triangulation,the accuracy of the construction of the 3D real scene model in this paper is effectively verified.It provides convenience for the query,management and application of the geographic object attributes in the model,effectively expands the application field of model data and has certain reference value for the construction of smart cities in Inner Mongolia.
作者
郭如宝
郝利娟
刘旭东
刘军
刘尧晖
张炜
GUO Rubao;HAO Lijuan;LIU Xudong;LIU Jun;LIU Yaohui;ZHANG Wei(Inner Mongolia Institute of Aeronautical Remote Sensing and Surveying,Hohhot 010010,China)
出处
《测绘通报》
CSCD
北大核心
2021年第1期103-107,共5页
Bulletin of Surveying and Mapping
基金
内蒙古自治区2016年基础测绘项目航空、航天影像获取(2200304)。
