CityJSON Building Generation from Airborne LiDAR 3D Point Clouds

Nys, Gilles‐Antoine; Poux, Florent; Billen, Roland

doi:10.3390/ijgi9090521

Cited by 37 publications

(24 citation statements)

References 52 publications

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“…In these models CD is applied, through Visual Programming Languages (VPL), to link, sort and merge metadata between models and environments but not for modeling purposes. The top-down procedures deal mainly with long-range remote sensing techniques (e.g., Airborne LiDAR data) and geodata (coming from online open-data sources or datasets held by local institutions) which are further developed inside GIS-based procedural modeling digital environment (Biljecki et al, 2015;Nys et al, 2020;Wang et al, 2018, Pârvu et al, 2018. Top-down models usually don't need any further integration (unlike bottomup models) with exception for indoor data that are inserted via the conversion of IFC files into CityGML objects (Biljecki et al, 2021).…”

Section: City Information Modelingmentioning

confidence: 99%

An Expeditious Parametric Approach for City Information Modeling and Finite Element Analysis

Russa

Intelisano

Galizia

et al. 2022

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

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Abstract. The mitigation of seismic risk passes through the assessment of seismic hazard of urban fabrics on a given territory. Statistical methods and damage probability matrices are currently used to facilitate seismic safety knowledge and assessment operations. These methods, despite being fast and low cost, often return results that differ from reality and prone to the expertise of the operator. Indeed, in order to have more accurate information it is necessary to conduct Finite Element Analysis (FEA). However, this type of analysis requires considerable surveying and modeling time and therefore are not easily applied to the urban scale. The key to implement this analysis at the territorial scale lies in the way of acquisition of urban data (geometric and informative) and their management within appropriate modeling environments that allow their treatment. Currently, the information modeling paradigms used for urban data collection and management are either time and resource consuming (HBIM) or overly simplified (GIS). In this research we investigate the potential of City Information Modeling (CIM) in a parametric environment (with reference to CityGML standards) combined with urban survey procedures. Aim of the work presented here is the definition of a parametric modeling protocol that allows, in a short time, the acquisition, modeling and finite element structural analysis of urban aggregates.

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Section: City Information Modelingmentioning

confidence: 99%

An Expeditious Parametric Approach for City Information Modeling and Finite Element Analysis

Russa

Intelisano

Galizia

et al. 2022

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

View full text Add to dashboard Cite

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“…Furthermore, most of the programming languages are able to produce the required structures by combining two basic data structures, namely ordered lists and key-value pairs [19]. In addition to the development of the encoding format itself, various tools for producing CityJSON data have been developed and reported [20,21]. However, as the CityJSON is still a fairly new development, its use has not been extensively discussed in the literature yet, apart from few data integration applications [22].…”

Section: D City Model Encoding Format Cityjsonmentioning

confidence: 99%

Near Real-Time Semantic View Analysis of 3D City Models in Web Browser

Virtanen

Jaalama

Puustinen

et al. 2021

IJGI

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3D city models and their browser-based applications have become an increasingly applied tool in the cities. One of their applications is the analysis views and visibility, applicable to property valuation and evaluation of urban green infrastructure. We present a near real-time semantic view analysis relying on a 3D city model, implemented in a web browser. The analysis is tested in two alternative use cases: property valuation and evaluation of the urban green infrastructure. The results describe the elements visible from a given location, and can also be applied to object type specific analysis, such as green view index estimation, with the main benefit being the freedom of choosing the point-of-view obtained with the 3D model. Several promising development directions can be identified based on the current implementation and experiment results, including the integration of the semantic view analysis with virtual reality immersive visualization or 3D city model application development platforms.

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“…However, for several reasons, among which the fact that such models are intended for a very wide scope, they are very complex and quite difficult to be implemented [45], also for being based on the Geography Markup Language (GML) format. Recently, CityJSON 12 was proposed as an alternative solution and approved by OGC, starting from a different implementation of the CityGML v.2.0 schema [46] and was proved to be very effective from an implementation point of view [47,48,49,50,51].…”

Section: Geoinformation and Related Open Standardsmentioning

confidence: 99%

Unveiling the Actual Progress of Digital Building Permit: Getting Awareness through a Critical State of the Art Review

Güler¹,

Fauth²,

Malacarne³

et al. 2021

Preprint

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Growing interest is awarded to the digitalization of the building permitting use case and many works are developed about the topic. However, the subject is very complex and many aspects are usually tackled separately, making it very hard for traditional literature reviews to grasp the actual progress in the overall topic. This paper unveils the detailed state of the art in Digital Building Permitting (DBP) by critically analyzing the literature by means of a set of coding tags (research progress, implementation, affected DBP workflow steps, ambitions addressed) assigned by a multidisciplinary team. The mainly addressed aspects of the digitalization of building permits resulted to be the technologies to check the compliance of design proposals against regulations, followed by the digitalization of regulations. Lacking aspects are instead the involvement of officers, scalability of solutions and interoperability of data, intended both as data validation and as integration of geoinformation with building models.

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CityJSON Building Generation from Airborne LiDAR 3D Point Clouds

Cited by 37 publications

References 52 publications

An Expeditious Parametric Approach for City Information Modeling and Finite Element Analysis

An Expeditious Parametric Approach for City Information Modeling and Finite Element Analysis

Near Real-Time Semantic View Analysis of 3D City Models in Web Browser

Unveiling the Actual Progress of Digital Building Permit: Getting Awareness through a Critical State of the Art Review

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