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Powałka, Leon (author), Poon, Chris (author), Xia, Yitong (author), Meines, Siebren (author), Yan, Lan (author), Cai, Yuduan (author), Stavropoulou, G. (author), Dukai, B. (author), Ledoux, H. (author)When it comes to storing 3D city models in a database, the implementation of the CityGML data model can be quite demanding and often results in complicated schemas. As an example, 3DCityDB, a widely used solution, depends on a schema having 66 tables, mapping closely the CityGML architecture. In this paper, we propose an alternative (called ...conference paper 2024
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Ying, Shen (author), van Oosterom, P.J.M. (author), Fan, Hongchao (author)The recent years observe the vast development in new techniques and methods for modelling, visualization, and analysis of 3D digital cities, as the need of digital twins of urban environment in different applications and simulations has been increased dramatically. This special issue attempts to give an overview of the recent progress and...journal article 2023
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Montilla, Y. M. (author), León Sánchez, C.A. (author), Lizarazo Salcedo, I. (author)Indoor navigation is a complex task for people and especially for visually impaired ones. This research proposes an indoor navigation system oriented to visually impaired users, integrating the OGC IndoorGML and CityGML standards with Bluetooth Low Energy devices (BLE) by using the RSSI signal loss value and the Weighted Path Loss-techniques...journal article 2022
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Isikdag, U. (author), Horhammer, M. (author), Zlatanova, S. (author), Kathmann, R. (author), Van Oosterom, P.J.M. (author)Valuation of real estate/ properties is in many countries/ cities the basis for fair taxation. The value depends on many aspects, including the physical real world aspects (geometries, material of object as build) and legal/virtual aspects (rights, restrictions, responsibilities, zoning/development plans applicable to the objects spaces)....conference paper 2014
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Isikdag, Umit (author), Horhammer, Mike (author), Zlatanova, Sisi (author), Kathmann, Ruud (author), van Oosterom, Peter (author)Valuation of real estate/ properties is in many countries/ cities the basis for fair taxation. The value depends on many aspects, including the physical real world aspects (geometries, material of object as build) and legal/virtual aspects (rights, restrictions, responsibilities, zoning/development plans applicable to the objects spaces)....conference paper 2014