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van der Vaart, J.A.J. (author), Stoter, J.E. (author), Diakite, A.A. (author), Biljecki, F. (author), Arroyo Ohori, G.A.K. (author), Hakim, Amir (author)Although level of detail (LoD) is a central concept in 3D city modelling, specifying different LoDs in an unambiguous manner is not straightforward. To resolve this, a set of frameworks have been developed. This paper evaluates the suitability of the LoD framework of (Biljecki et al. 2016) for 3D building models that have been generated directly...conference paper 2024
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Hakim, Amir (author), van der Vaart, J.A.J. (author), Arroyo Ohori, G.A.K. (author), Stoter, J.E. (author)The integration of 3D city models and Building Information Models (BIM) in the context of GeoBIM has gained significant attention from both academia and industry. Harmonizing the distinct characteristics and goals of these models is crucial for successful integration. In this paper, we present the development of a plugin for Autodesk Revit, a...conference paper 2024
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Labetski, A. (author), Vitalis, S. (author), Biljecki, Filip (author), Arroyo Ohori, G.A.K. (author), Stoter, J.E. (author)Urban morphology is important in a broad range of investigations across the fields of city planning, transportation, climate, energy, and urban data science. Characterising buildings with a set of numerical metrics is fundamental to studying the urban form. Despite the rapid developments in 3D geoinformation science, and the growing 3D data...journal article 2022
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Vitalis, S. (author), Arroyo Ohori, G.A.K. (author), Stoter, J.E. (author)Level of Detail (LoD) is a well known concept in 3D city models, used to designate different geometric detail that can be used in different applications. Nevertheless, multi-LoD datasets are hard to maintain and manage because of their intrinsic complexity. Versioning is a solution that aids in the storage and management of big and complex...journal article 2022
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Noardo, F. (author), Wu, T. (author), Arroyo Ohori, G.A.K. (author), Krijnen, T.F. (author), Stoter, J.E. (author)To support building permit issuing with automatic digital tools, the reuse of models produced by designers would make the process quicker and more objective. However, current studies and pilots often leave a gap with respect to the models as actually provided by architects, having varying quality and content. In this study, rather than taking...journal article 2022
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Tufan, Ö (author), Arroyo Ohori, G.A.K. (author), León Sánchez, C.A. (author), Agugiaro, G. (author), Stoter, J.E. (author)3D city models are frequently used to acquire and store energy-related information of buildings for energy applications. In this context, CityGML is the most common data model, and the Energy ADE, one of its most complex extensions, provides a systematic way of storing detailed energy-related data in XML format. Contrarily, even though...journal article 2022
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Lumban-Gaol, Yustisi (author), Arroyo Ohori, G.A.K. (author), Peters, R.Y. (author)Satellite-Derived Bathymetry (SDB) can be calculated using analytical or empirical approaches. Analytical approaches require several water properties and assumptions, which might not be known. Empirical approaches rely on the linear relationship between reflectances and in-situ depths, but the relationship may not be entirely linear due to...journal article 2022
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Hobeika, N. (author), van Liempt, J.N.H. (author), Noardo, F. (author), Arroyo Ohori, G.A.K. (author), Stoter, J.E. (author)Municipalities invest a lot of time and person-hours into manual building permit checks. With the increase in computational power and the use of Building Information Models (BIM) in the building design life cycle, several municipalities are investing in automating these checks using BIM and geo-data sets. However, few examples exist of tools...journal article 2022
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Krijnen, T.F. (author), Noardo, F. (author), Arroyo Ohori, G.A.K. (author), Stoter, J.E. (author)In this chapter, we start from the typical concepts from Geographic Information System (GIS): data representation, acquisition, querying and analysis. We follow with the transition from 2 to 3D GIS and describe open standards such as CityGML and CityJSON and recent advances on 3D geospatial simulations, computing and real-time GIS and...book chapter 2022
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Stoter, J.E. (author), Arroyo Ohori, G.A.K. (author), Noardo, F. (author)The concept of the digital twin has been gaining significant momentum in the geospatial domain since 2016. Although there is some consensus on the basic features of a digital twin, some critical reflection is still necessary to make the concept tangible. Only then can the digital twin be implemented as a technical solution that scales to real...journal article 2021
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Stoter, J.E. (author), Arroyo Ohori, G.A.K. (author), Noardo, F. (author)De term Digital Twin wordt op allerlei manieren gebruikt sinds dit concept een aantal jaren geleden haar intrede deed in het geodomein als veelbelovende technologie om grote maatschappelijke opgaven en omgevingsvraagstukken op te lossen. Hoewel er consensus bestaat over de basisfunctionaliteiten van een Digital Twin, is het risico van de...journal article 2021
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Noardo, F. (author), Arroyo Ohori, G.A.K. (author), Krijnen, T.F. (author), Stoter, J.E. (author)Industry Foundation Classes (IFC) is a complete, wide and complex open standard data model to represent Building Information Models. Big efforts are being made by the standardization organization buildingSMART, to develop and maintain this standard in collaboration with researchers, companies and institutions. However, when trying to use IFC...journal article 2021
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Dahle, F. (author), Arroyo Ohori, G.A.K. (author), Agugiaro, G. (author), Briels, Sven (author)In many countries digital maps are generally created and provided by Cadastre, Land Registry or National Mapping Agencies. These maps must be accurate and well maintained. However, in most cases, the update process of these maps is still done by hand, often using satellite or aerial imagery. Supporting this process via automatic change...journal article 2021
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Satellite-derived bathymetry using convolutional neural networks and multispectral sentinel-2 imagesLumban-Gaol, Y. A. (author), Arroyo Ohori, G.A.K. (author), Peters, R.Y. (author)Satellite-Derived Bathymetry (SDB) has been used in many applications related to coastal management. SDB can efficiently fill data gaps obtained from traditional measurements with echo sounding. However, it still requires numerous training data, which is not available in many areas. Furthermore, the accuracy problem still arises considering...journal article 2021
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Noardo, F. (author), Krijnen, T.F. (author), Arroyo Ohori, G.A.K. (author), Biljecki, Filip (author), Ellul, Claire (author), Harrie, Lars (author), Salheb, Nebras (author), van Liempt, J.N.H. (author), Stoter, J.E. (author)Industry Foundation Classes (IFC), the buildingSMART open standard for BIM, is underused with respect to its promising potential, since, according to the experience of practitioners and researchers working with BIM, issues in the standard’s implementation and use prevent its effective use. Nevertheless, a systematic investigation of these...journal article 2021
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Arroyo Ohori, G.A.K. (author)3D city models are an important research topic within geographic information, but there is still a lack of good tools to work with them in practice. In an attempt to alleviate this problem and to help with our own research, we have developed azul, a free and open‐source macOS 3D viewer that was especially engineered for the visualization of 3D...journal article 2020
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Krijnen, T.F. (author), Noardo, F. (author), Arroyo Ohori, G.A.K. (author), Ledoux, H. (author), Stoter, J.E. (author)The Industry Foundation Classes are a prevalent open standard to exchange Building Information Models. In such a model, geometric representations are provided for individual building elements along with semantic information, including a significant amount of properties related togeometry and explicit topological relationships. These...conference paper 2020
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Ledoux, H. (author), Arroyo Ohori, G.A.K. (author), Peters, R.Y. (author)The book Computational modelling of terrains presents an overview of algorithms and methodologies to reconstruct, manipulate, and extract information from terrains.<br/><br/>It covers different representations of terrains (eg TINs, rasters, point clouds, contour lines) and presents techniques to handle large datasets.book 2020
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Noardo, F. (author), Arroyo Ohori, G.A.K. (author), Krijnen, T.F. (author), Stoter, J.E. (author), Ellul, C (author), Harrie, L (author), Biljecki, Filip (author), Agugiaro, G. (author), Kokla, M. (author)In both research and practice, data interoperability is considered essential to support a rising number of applications that need data from different domains. Therefore, standard data formats and models are developed by standardization organizations such as Open Geospatial Consortium (for the Geo domain)<br/>and buildingSMART (for the BIM domain...report 2020
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Salheb, N. (author), Arroyo Ohori, G.A.K. (author), Stoter, J.E. (author)The trend of increased usage of both BIM and 3D GIS and the similarity between the two has led to an increase in the overlap between them. A key application of such overlap is providing geospatial context data for BIM models through importing 3D GIS-data to BIM software to help in different design-related issues. However, this is currently...journal article 2020