Construction of a Real-Scene 3D Digital Campus Using a Multi-Source Data Fusion: A Case Study of Lanzhou Jiaotong University

Real-scene 3D digital campuses are essential for improving the accuracy and effectiveness of spatial data representation, facilitating informed decision-making for university administrators, optimizing resource management, and enriching user engagement for students and faculty. However, current appr...

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Main Authors: Rui Gao, Guanghui Yan, Yingzhi Wang, Tianfeng Yan, Ruiting Niu, Chunyang Tang
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:ISPRS International Journal of Geo-Information
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Online Access:https://www.mdpi.com/2220-9964/14/1/19
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author Rui Gao
Guanghui Yan
Yingzhi Wang
Tianfeng Yan
Ruiting Niu
Chunyang Tang
author_facet Rui Gao
Guanghui Yan
Yingzhi Wang
Tianfeng Yan
Ruiting Niu
Chunyang Tang
author_sort Rui Gao
collection DOAJ
description Real-scene 3D digital campuses are essential for improving the accuracy and effectiveness of spatial data representation, facilitating informed decision-making for university administrators, optimizing resource management, and enriching user engagement for students and faculty. However, current approaches to constructing these digital environments face several challenges. They often rely on costly commercial platforms, struggle with integrating heterogeneous datasets, and require complex workflows to achieve both high precision and comprehensive campus coverage. This paper addresses these issues by proposing a systematic multi-source data fusion approach that employs open-source technologies to generate a real-scene 3D digital campus. A case study of Lanzhou Jiaotong University is presented to demonstrate the feasibility of this approach. Firstly, oblique photography based on unmanned aerial vehicles (UAVs) is used to capture large-scale, high-resolution images of the campus area, which are then processed using open-source software to generate an initial 3D model. Afterward, a high-resolution model of the campus buildings is then created by integrating the UAV data, while 3D Digital Elevation Model (DEM) and OpenStreetMap (OSM) building data provide a 3D overview of the surrounding campus area, resulting in a comprehensive 3D model for a real-scene digital campus. Finally, the 3D model is visualized on the web using Cesium, which enables functionalities such as real-time data loading, perspective switching, and spatial data querying. Results indicate that the proposed approach can effectively get rid of reliance on expensive proprietary systems, while rapidly and accurately reconstructing a real-scene digital campus. This framework not only streamlines data harmonization but also offers an open-source, practical, cost-effective solution for real-scene 3D digital campus construction, promoting further research and applications in twin city, Virtual Reality (VR), and Geographic Information Systems (GIS).
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spelling doaj-art-a023f0e5c7a84f8d8b84cb1e8e8127432025-01-24T13:34:59ZengMDPI AGISPRS International Journal of Geo-Information2220-99642025-01-011411910.3390/ijgi14010019Construction of a Real-Scene 3D Digital Campus Using a Multi-Source Data Fusion: A Case Study of Lanzhou Jiaotong UniversityRui Gao0Guanghui Yan1Yingzhi Wang2Tianfeng Yan3Ruiting Niu4Chunyang Tang5School of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaSchool of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaSchool of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaSchool of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaSchool of Electronic and Information Engineering, Lanzhou Jiaotong University, Lanzhou 730070, ChinaSilk Road Fantian (Gansu) Communication Technology Co., Ltd., Lanzhou 730070, ChinaReal-scene 3D digital campuses are essential for improving the accuracy and effectiveness of spatial data representation, facilitating informed decision-making for university administrators, optimizing resource management, and enriching user engagement for students and faculty. However, current approaches to constructing these digital environments face several challenges. They often rely on costly commercial platforms, struggle with integrating heterogeneous datasets, and require complex workflows to achieve both high precision and comprehensive campus coverage. This paper addresses these issues by proposing a systematic multi-source data fusion approach that employs open-source technologies to generate a real-scene 3D digital campus. A case study of Lanzhou Jiaotong University is presented to demonstrate the feasibility of this approach. Firstly, oblique photography based on unmanned aerial vehicles (UAVs) is used to capture large-scale, high-resolution images of the campus area, which are then processed using open-source software to generate an initial 3D model. Afterward, a high-resolution model of the campus buildings is then created by integrating the UAV data, while 3D Digital Elevation Model (DEM) and OpenStreetMap (OSM) building data provide a 3D overview of the surrounding campus area, resulting in a comprehensive 3D model for a real-scene digital campus. Finally, the 3D model is visualized on the web using Cesium, which enables functionalities such as real-time data loading, perspective switching, and spatial data querying. Results indicate that the proposed approach can effectively get rid of reliance on expensive proprietary systems, while rapidly and accurately reconstructing a real-scene digital campus. This framework not only streamlines data harmonization but also offers an open-source, practical, cost-effective solution for real-scene 3D digital campus construction, promoting further research and applications in twin city, Virtual Reality (VR), and Geographic Information Systems (GIS).https://www.mdpi.com/2220-9964/14/1/193D digital campusUAV-based oblique photographymulti-source data fusionCesium3D modeling
spellingShingle Rui Gao
Guanghui Yan
Yingzhi Wang
Tianfeng Yan
Ruiting Niu
Chunyang Tang
Construction of a Real-Scene 3D Digital Campus Using a Multi-Source Data Fusion: A Case Study of Lanzhou Jiaotong University
ISPRS International Journal of Geo-Information
3D digital campus
UAV-based oblique photography
multi-source data fusion
Cesium
3D modeling
title Construction of a Real-Scene 3D Digital Campus Using a Multi-Source Data Fusion: A Case Study of Lanzhou Jiaotong University
title_full Construction of a Real-Scene 3D Digital Campus Using a Multi-Source Data Fusion: A Case Study of Lanzhou Jiaotong University
title_fullStr Construction of a Real-Scene 3D Digital Campus Using a Multi-Source Data Fusion: A Case Study of Lanzhou Jiaotong University
title_full_unstemmed Construction of a Real-Scene 3D Digital Campus Using a Multi-Source Data Fusion: A Case Study of Lanzhou Jiaotong University
title_short Construction of a Real-Scene 3D Digital Campus Using a Multi-Source Data Fusion: A Case Study of Lanzhou Jiaotong University
title_sort construction of a real scene 3d digital campus using a multi source data fusion a case study of lanzhou jiaotong university
topic 3D digital campus
UAV-based oblique photography
multi-source data fusion
Cesium
3D modeling
url https://www.mdpi.com/2220-9964/14/1/19
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