垂直航空摄影三维模型构建与优化

doi:10.13474/j.cnki.11-2246.2025.0313

测绘通报 ›› 2025, Vol. 0 ›› Issue (3): 76-80.doi: 10.13474/j.cnki.11-2246.2025.0313

• 学术研究 • 上一篇

垂直航空摄影三维模型构建与优化

刘金沧^1,2, 袁磊³, 马德富⁴, 夏进亮¹

1. 广东省国土资源测绘院, 广东广州 510663;
2. 自然资源部华南热带亚热带自然资源监测重点实验室, 广东广州 510663;
3. 珠海市自然资源与规划技术中心, 广东珠海 519000;
4. 珠海市测绘院, 广东珠海 519000

收稿日期:2024-09-14 发布日期:2025-04-03
通讯作者: 袁磊。E-mail:155213330@qq.com
作者简介:刘金沧(1987—),男,硕士,高级工程师,主要从事自然资源调查监测、摄影测量与遥感应用研究工作。E-mail:liujincang＿whu@126.com
基金资助:
广东省科技计划(2021B1212100003)

3D model construction and optimization based on vertical aerial photography

LIU Jincang^1,2, YUAN Lei³, MA Defu⁴, XIA Jinliang¹

1. Surveying and Mapping Institute Lands and Resource Department of Guangdong Province, Guangzhou 510663, China;
2. Key Laboratory of Natural Resources Monitoring in Tropical and Subtropical Area of South China, Ministry of Natural Resources, Guangzhou 510663, China;
3. Zhuhai Natural Resources & Planning Technology Center, Zhuhai 519000, China;
4. Zhuhai Surveying and Mapping Institution, Zhuhai 519000, China

Received:2024-09-14 Published:2025-04-03

摘要/Abstract

摘要： 垂直航空摄影一般用于获取影像数据并制作正射影像图,为进一步挖潜影像数据价值,支撑实景三维中国建设,本文以垂直航空摄影获取的影像为基础,构建三维模型并探索模型效果优化的方法。具体包括:①分析基于垂直航空影像构建三维模型的可行性;②研究通过在不增加航摄成本的情况下,加大影像重叠度以增强三维模型效果的方法;③提出建筑物顶部信息约束的模型优化方法。通过理论分析和实践证明:重叠度对基于垂直航空影像三维模型构建的完整性影响较大,采用航向80%的重叠度采集数据,可在不增加航摄工作量的情况下大幅提升建模效果;建筑顶部信息约束建模方法对改善模型完整性非常有效,可在保留建筑顶部细节信息的前提下,大幅度优化建筑边缘形态,在城市规划、执法监测等领域可发挥重要作用。

关键词: 垂直摄影, 三维模型, 重叠度, 约束建模

Abstract: Vertical aerial photography is generally used to obtain image data to make orthographic images, in order to further digging the value of image data and support the construction of China's national 3D mapping program, this paper studies the construction of three-dimensional model based on the image obtained by vertical aerial photography and explores the method of model effect optimization, specifically include the analysis of the feasibility of constructing a real 3D model based on vertical aerial images, the study of the method of enhancing the effect of the three-dimensional model by increasing the image overlap without increasing the cost of aerial photography, and the proposed model optimization method for building top information constraints. Through theoretical analysis and practice, it is proved that: the overlap has a great influence on the integrity of the three-dimensional model based on vertical aerial images, using 80 % overlap degree of heading to obtain image data can greatly improve the modeling effect without increasing the workload of aerial photography; Building top information constraint modeling method is very effective to improve the integrity of the model,The modeling method of building top information constraint is very effective to improve the integrity of the model; Building top information constraint modeling method is very effective to improve the integrity of the model, it can greatly optimize the edge shape of the building under the premise of retaining the detailed information of the top of the building, and can play an important role in urban planning, law enforcement monitoring and other fields.

Key words: vertical photography, 3D model, overlap, constraint modelling

中图分类号:

P237

刘金沧, 袁磊, 马德富, 夏进亮. 垂直航空摄影三维模型构建与优化[J]. 测绘通报, 2025, 0(3): 76-80.

LIU Jincang, YUAN Lei, MA Defu, XIA Jinliang. 3D model construction and optimization based on vertical aerial photography[J]. Bulletin of Surveying and Mapping, 2025, 0(3): 76-80.

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垂直航空摄影三维模型构建与优化

3D model construction and optimization based on vertical aerial photography

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