DB4GeO, a 3D/4D Geodatabase and Its Application for the Analysis of Landslides

Breunig, Martin; Schilberg, Björn; Thomsen, Andreas; Kuper, Paul Vincent; Jahn, Markus; Butwilowski, Edgar

doi:10.1007/978-3-642-03442-8_6

Cited by 8 publications

(3 citation statements)

References 5 publications

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“…Today, 3D city models are generally stored in object-relational databases, such as Oracle and PostGIS and, in most cases, these databases are extended with dedicated city model tools, such as 3DCityDB [45] and DB4Geo [46]. Strauss and Carey [47] introduced object-oriented databases for 3D model management; these databases have also been used for 3D building applications [48].…”

Section: Storage Methods Of 3d City Modelsmentioning

confidence: 99%

Methodology for the Efficient Progressive Distribution and Visualization of 3D Building Objects

Mao

Harrie²

2016

IJGI

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Three-dimensional (3D), city models have been applied in a variety of fields. One of the main problems in 3D city model utilization, however, is the large volume of data. In this paper, a method is proposed to generalize the 3D building objects in 3D city models at different levels of detail, and to combine multiple Levels of Detail (LODs) for a progressive distribution and visualization of the city models. First, an extended structure for multiple LODs of building objects, BuildingTree, is introduced that supports both single buildings and building groups; second, constructive solid geometry (CSG) representations of buildings are created and generalized. Finally, the BuildingTree is stored in the NoSQL database MongoDB for dynamic visualization requests. The experimental results indicate that the proposed progressive method can efficiently visualize 3D city models, especially for large areas.

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Section: Storage Methods Of 3d City Modelsmentioning

confidence: 99%

Methodology for the Efficient Progressive Distribution and Visualization of 3D Building Objects

Mao

Harrie²

2016

IJGI

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“…Today 3D city models are generally stored in object-relational databases such as Oracle and Postgis (Stadler et al 2009) and in most cases these databases are extended with dedicated city model tools such as 3DCityDB (2013) and DB4Geo (Breunig et al 2010). Strauss and Carey (1992) introduced object oriented databases for 3D model management; these databases have also been used for 3D building applications (Long et al, 2011).…”

Section: Storage Methods Of 3d City Modelsmentioning

confidence: 99%

NoSQL Based 3D City Model Management System

Mao

Harrie

Cao

et al. 2014

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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Commission VI, WG VI/4KEY WORDS: 3D city model, NoSQL, data integration, multiple representation structure ABSTRACT:To manage increasingly complicated 3D city models, a framework based on NoSQL database is proposed in this paper. The framework supports import and export of 3D city model according to international standards such as CityGML, KML/COLLADA and X3D. We also suggest and implement 3D model analysis and visualization in the framework. For city model analysis, 3D geometry data and semantic information (such as name, height, area, price and so on) are stored and processed separately. We use a Map-Reduce method to deal with the 3D geometry data since it is more complex, while the semantic analysis is mainly based on database query operation. For visualization, a multiple 3D city representation structure CityTree is implemented within the framework to support dynamic LODs based on user viewpoint. Also, the proposed framework is easily extensible and supports geoindexes to speed up the querying. Our experimental results show that the proposed 3D city management system can efficiently fulfil the analysis and visualization requirements.

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“…The database management systems (DBMS) are specialized software packages that interact with users, other programs, and the database itself to collect, query, and analyze data (Thabani et al, 2020). GIS-based Spatial query languages were used to study the area's changing land use pattern (Borrmann et.al;Breunig et al, 2010). Building database models for applications like asset mapping, landslide analysis, and land use/ landcover research is the focus of the studies and literature that are now available.…”

mentioning

confidence: 99%

Integrated geospatial database design for land use pattern analysis and its impact on local governance: A case study of Manesar Urban Complex, Gurugram, India

Dev,

Krishna,

Kumar

et al. 2023

JANS

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The absence of an integrated geospatial database hinders effective decision-making among various stakeholders in national projects and programs. The study aimed to create an integrated geospatial database for the Manesar tehsil, District Gurugram, Haryana. Another objective was to create a land use map to analyze the temporal change in land use patterns and its socioeconomic impact along the surrounding areas. The first stage of the study involved creating an integrated database after interviewing different stakeholders. In the second stage, the satellite imagery was georeferenced using Ground Control Points, and the land use patterns were digitized using Landsat imagery for 1987, 2011, 2014, and 2022. The study suggested that the construction area has grown up to 6% while cultivation has dropped significantly from 76% in 1987 to 50% in 2022. Likewise, the industrial area has grown up to 2% and natural vegetation dropped in coverage from 11% to 4%. The area witnessed a population growth rate of 3.2% per year and a decadal growth rate of 39.7%. Less than 50% of the land in the tehsil is used for agricultural purposes. It estimates that 4% of the tehsil's entire surface was covered by natural vegetation in 2019, down from 11% in 1987. The study recommends the creation of an integrated geospatial database that will help reduce duplication and speed up decision-making in government. This will pave the way for improving e-governance in local bodies. The framework created for developing the database system is universally applicable and can be used appropriately by other states, regions, and the entire country.

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DB4GeO, a 3D/4D Geodatabase and Its Application for the Analysis of Landslides

Cited by 8 publications

References 5 publications

Methodology for the Efficient Progressive Distribution and Visualization of 3D Building Objects

Methodology for the Efficient Progressive Distribution and Visualization of 3D Building Objects

NoSQL Based 3D City Model Management System

Integrated geospatial database design for land use pattern analysis and its impact on local governance: A case study of Manesar Urban Complex, Gurugram, India

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