首页|融合风貌特征的上海城市框架模型生产更新方法

融合风貌特征的上海城市框架模型生产更新方法

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城市三维(3D)模型的快速构建和及时更新是实景3D中国建设的重点之一.本文针对上海历史风貌建筑与地标性异形建筑较多的特点进行深入分析,结合城市风貌特征和使用效能,提出了一种融合简易模型和去纹理精细模型的上海城市框架模型构建方法,阐述了其概念、构建规则和生产方法,解决了传统简易模型难以表现城市特征而导致应用场景受限的问题.在此基础上提出了基于二维(2D)建筑底面和3D精细模型生产更新的城市框架模型动态更新方法,并通过试验对所提出方法进行了验证.目前该方法已应用于上海城市"一张图"数据生产更新中,服务于市国土空间信息平台、城市运行管理等场景,证明了方法的有效性.
Production and updating method of Shanghai framework model based on urban feature
The rapid construction and timely updating of urban three-dimensional (3D) models is one of the focuses in the construction of 3D real scene in China. Based on the in-depth analysis of the features of historical buildings and landamark irregular buildings in Shanghai,this paper integrated urban features and efficiency to propose a method of constructing Shanghai urban framework model,which combined the simple model and the textureless fine model. In this paper,the concept,construction rules and production methods of the Shanghai framework 3D model were expounded,which solved the issue that the traditional simple model was difficult to represent the city features and the application scenario was limited. On this basis,this paper proposed a dynamic updating method for urban framework model based on two-dimensional (2D) building surfaces and 3D fine model production updates,and the proposed method was verified by experiments. At present, this method has been applied to the production and update of Shanghai "one map" data,and used in scenarios such as the urban land spatial information platform and urban operation management,which proves the effectiveness of the method.

urban framework modelurban featureautomatic extraction of incremental informationdynamic update of modelthree-dimensional(3D) real scene in Shanghai

刘一宁、徐豆豆、昌尧霏

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上海市测绘院, 上海 200063

自然资源部超大城市自然资源时空大数据分析应用重点实验室, 上海 200063

城市框架模型 城市风貌特征 增量信息自动提取 模型动态更新 实景三维上海

上海市2021年度"科技创新行动计划"社会发展科技攻关项目

21DZ1204100

2024

北京测绘
北京市测绘设计研究院,北京测绘学会

北京测绘

影响因子:0.55
ISSN:1007-3000
年,卷(期):2024.38(4)
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