Interactive visualization of multi-resolution urban building models considering spatial cognition

Yang, Ling; Zhang, Liqiang; Ma, Jie; Xie, Jinghan; Liu, Liu

doi:10.1080/13658816.2010.488239

Cited by 22 publications

(22 citation statements)

References 13 publications

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“…However, their complexity may considerably deviate (Yang et al, 2011), from coarse to fine footprints as seen in Prandi et al (2013) and Ellul and Altenbuchner (2013). This is especially the case in generalisation from finer LODs (Forberg, 2007;Anders, 2005).…”

Section: Lod0 and Lod1 Familiesmentioning

confidence: 99%

An improved LOD specification for 3D building models

Biljecki

Ledoux

Stoter

2016

Computers, Environment and Urban Systems

333

176

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The level of detail (LOD) concept of the OGC standard CityGML 2.0 is intended to differentiate multi-scale representations of semantic 3D city models. The concept is in practice principally used to indicate the geometric detail of a model, primarily of buildings. Despite the popularity and the general acceptance of this categorisation, we argue in this paper that from a geometric point of view the five LODs are insufficient and that their specification is ambiguous.We solve these shortcomings with a better definition of LODs and their refinement. Hereby we present a refined set of 16 LODs focused on the grade of the exterior geometry of buildings, which provide a stricter specification and allow less modelling freedom. This series is a result of an exhaustive research into currently available 3D city models, production workflows, and capabilities of acquisition techniques. Our specification also includes two hybrid models that reflect common acquisition practices. The new LODs are in line with the LODs of CityGML 2.0, and are intended to supplement, rather than replace the geometric part of the current specification. While in our paper we focus on the geometric aspect of the models, our specification is compatible with different levels of semantic granularity. Furthermore, the improved LODs can be considered format-agnostic.Among other benefits, the refined specification could be useful for companies for a better definition of their product portfolios, and for researchers to specify data requirements when presenting use cases of 3D city models. We support our refined LODs with experiments, proving their uniqueness by showing that each yields a different result in a 3D spatial operation.Keywords: Level of detail; 3D city modelling; 3D GIS; 3D building models; CityGML; Scale Highlights• CityGML LODs are an industry standard for conveying the grade of 3D city models.• The 5 LODs are not defined precisely, and they are not sufficient for this purpose.• We present a refined series of 16 LODs that overcomes these issues.

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Section: Lod0 and Lod1 Familiesmentioning

confidence: 99%

An improved LOD specification for 3D building models

Biljecki

Ledoux

Stoter

2016

Computers, Environment and Urban Systems

333

176

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“…Many authors have proposed methodologies which perform both steps of object grouping and merging [13,[54][55][56]. Meanwhile some authors propose methodologies which perform a single step.…”

Section: Map Generalisationmentioning

confidence: 99%

“…Aggregation by sampling replaces the set of objects with a sub-set; this is also known as typification. Finally aggregation by connecting objects [3,46,55] is by far the most commonly used methodology and is the focus of the research presented here. We now describe in detail how this methodology functions.…”

Section: Map Generalisationmentioning

confidence: 99%

“…The first uses morphological operators (erosion and dilation) and are particularly suited to raster data [57]. The other trend uses the Delaunay triangulation geometrical structure and is suitable for vector data [13,[54][55][56]. It should be noted that the aggregation of objects has many applications outside the domain of map generalization such as the generation of a shape, or footprint, from a set of points [58].…”

Section: Map Generalisationmentioning

confidence: 99%

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Spatial Relations Using High Level Concepts

Corcoran

Mooney

Bertolotto

2012

IJGI

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Existing models of spatial relations do not consider that different concepts exist on different levels in a hierarchy and in turn that the spatial relations in a given scene are a function of the specific concepts considered. One approach to determining the existence of a particular spatial relation is to compute the corresponding high level concepts explicitly using map generalization before inferring the existence of the spatial relation in question. We explore this idea through the development of a model of the spatial relation "enters" that may exist between a road and a housing estate.

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“…3D simulation needs to take into account spatial psychology and as a result has more problems to resolve (Yang et al, 2011). "3D visualization and modeling capabilities can make communication easier for planners and facilitate the study of complex urban environments in their full spatial extent, including shape, size, volume, and the spatial configuration in all x, y and z dimensions" (Yin, 2010: 419-420;Yao et al, 2006).…”

Section: D Visualization In Urban Design and Planningmentioning

confidence: 99%

Collaborative 3D design with BDMUD method: the effects of building on cityscape reflections on urban planning

Demir

Ergen

et al. 2016

ACE: Architecture, City and Environment

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This study examines a building located on the Adana-Ankara road axis in Kayseri, and its relationship with its immediate surroundings in terms of urban design, during its design and construction process, as well as post-construction. The study consists of two main sections. The first looks at the use of the Building Design Management in Urban Design (BDMUD) method in relation to this building. BDMUD is a proposed new method for integrating urban design, urban planning and architectural design, by adding collaboration planning to Virtual Reality (VR) and Building Information Model (BIM).The second section is a post-construction survey to evaluate the success of the BDMUD method in terms of the building's size, geometric shape (hereafter form), proportion, material, building layout and building use-land use conducted with a target group comprising city planners and architects based in Kayseri and architecture students (especially senior students) from the Erciyes University Department of Architecture. The survey group represents stakeholders with a role in the transformation of urban spaces who are able to give an opinion on urban design.The outcomes of the survey are presented in percentage comparison. In the survey, 100% of the architects, 85.7% of the city planners and 94% of the architecture students recognized that the building was designed using the BDMUD method due to its differentiation from the other buildings on the road axis. In other words, according to 91.1% of the participants, the BDMUD method resulted in differentiation between this building and the others in terms of form, proportion, material and building layout. On the other hand, in terms of building use-land use at this site, 62.75% of the participants preferred mixed use with commercial use on the ground floor and residential use on the upper floors, while 37.25% of participants favored commercial

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Interactive visualization of multi-resolution urban building models considering spatial cognition

Cited by 22 publications

References 13 publications

An improved LOD specification for 3D building models

An improved LOD specification for 3D building models

Spatial Relations Using High Level Concepts

Collaborative 3D design with BDMUD method: the effects of building on cityscape reflections on urban planning

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