A Web-Based Approach for the Efficient Management of Massive Multi-source 3D Models  

作　　者：ZHAO Qiansheng TANG Ruibing PENG Mingjun GUO Mingwu 

机构地区：[1]School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China [2]Wuhan Geomatics Institute,Wuhan 430022,China

出　　处：《Journal of Geodesy and Geoinformation Science》2024年第3期24-41,共18页测绘学报（英文版）

基　　金：National Key Research and Development Program of China(No.2023YFB3907103).

摘　　要：Effectively managing extensive,multi-source,and multi-level real-scene 3D models for responsive retrieval scheduling and rapid visualization in the Web environment is a significant challenge in the current development of real-scene 3D applications in China.In this paper,we address this challenge by reorganizing spatial and temporal information into a 3D geospatial grid.It introduces the Global 3D Geocoding System(G_(3)DGS),leveraging neighborhood similarity and uniqueness for efficient storage,retrieval,updating,and scheduling of these models.A combination of G_(3)DGS and non-relational databases is implemented,enhancing data storage scalability and flexibility.Additionally,a model detail management scheduling strategy(TLOD)based on G_(3)DGS and an importance factor T is designed.Compared with mainstream commercial and open-source platforms,this method significantly enhances the loadable capacity of massive multi-source real-scene 3D models in the Web environment by 33%,improves browsing efficiency by 48%,and accelerates invocation speed by 40%.

关 键 词：massive multi-source real-scene 3D model non-relational database global 3D geocoding system importance factor massive model management 

分 类 号：P209[天文地球—测绘科学与技术]