Automatic Geometry Generation from Point Clouds for BIM

Thomson, C. Claire; Boehm, J.

doi:10.3390/rs70911753

Cited by 186 publications

(136 citation statements)

References 25 publications

Supporting

Mentioning

120

Contrasting

Unclassified

Order By: Relevance

“…Xbim.Essentials also enabled the work of several scholars who, in absence of clear guidelines, have informally referenced its usage, such as Thomson and Boehm (2015), Porter (2014), Braun et al (2017), Černỳ (2014), Weise et al (2017) and Roupé et al (2014).…”

Section: Discussionmentioning

confidence: 99%

Xbim.Essentials: a library for interoperable building information applications

Lockley¹,

Benghi²,

Černý³

2017

JOSS

View full text Add to dashboard Cite

SummaryThe Xbim.Essentials library offers data extraction, data transformation and data validation functions for Building Information Models (BIM); its robust and optimised implementation allows efficient operations on gigabyte-range files for researchers and practitioners interested in the built environment.The library implements the complete object model of BuildingSMART's IFC schemas (2017) along with APIs for their management under the terms of the CDDL (Sun Microsystems 2005), which makes it also suitable for commercial research and development projects.Relevant fields of research span from social sciences to construction engineering and applied mathematics on account of the breadth of domains covered in the over 800 classes of the schema across building lifecycles.The project implements public APIs for:• Federating, merging and splitting models and entities within models (non-trivial because of cyclic and bi-directional relationships defined in the schemas).• Verification of data quality through EXPRESS WHERE clauses and metadata constraints.• programmatic management of IFC properties and relations through Schema Metadata.• Single point management of any IFC file, including XML, STEP21 and IFCZIP formats.Architectural features of the solution include:• Full access to the models through C# interfaces, allowing schema-agnostic data logic on any supported version.• Disk-based and in-memory options to suit diverse workflow infrastructures.• Log management for notification events where exceptions are not appropriate.Additionally, the Xbim.IO.TableStore namespace supports similar APIs, when conceptually suitable, on BuildingSMART's COBie object model (buildingSMART 2013), extending the domain of relevance to construction operations and facility management.Where appropriate, classes in the codebase are generated programmatically from the formal EXPRESS specification files (ISO 2013) ensuring full compliance with the standards. The library has been developed over many years and has supported several research projects such as iCAT

show abstract

Section: Discussionmentioning

confidence: 99%

Xbim.Essentials: a library for interoperable building information applications

Lockley¹,

Benghi²,

Černý³

2017

JOSS

View full text Add to dashboard Cite

show abstract

“…Automated modelling of existing buildings from scan data is very desirable commercially to reduce time and therefore costs of as-built BIM projects (Thomson and Boehm, 2015). One area where progress is being made towards automated as-built BIM is in automated object recognition and feature extraction from point clouds (Jung et al, 2014, Xiong et al, 2013, Zhang and Zakhor, 2014.…”

Section: Automation For As-built Bimmentioning

confidence: 99%

“…Once objects are automatically recognised from a dataset, primitives or planes can be automatically fitted to the recognised elements in the dataset. A lot of the research in this area, however, is focused on indoor applications (Jung et al, 2014, Zhang and Zakhor, 2014, Thomson and Boehm, 2015 and is currently restricted to automatic extraction of basic elements such as planes and openings. Automatic extraction of complex architectural elements that occur in existing and historical buildings is still in its infancy.…”

Section: Automation For As-built Bimmentioning

confidence: 99%

Current State of the Art Historic Building Information Modelling

Dore¹,

Murphy²

2017

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

113

View full text Add to dashboard Cite

ABSTRACT:In an extensive review of existing literature a number of observations were made in relation to the current approaches for recording and modelling existing buildings and environments: Data collection and pre-processing techniques are becoming increasingly automated to allow for near real-time data capture and fast processing of this data for later modelling applications. Current BIM software is almost completely focused on new buildings and has very limited tools and pre-defined libraries for modelling existing and historic buildings. The development of reusable parametric library objects for existing and historic buildings supports modelling with high levels of detail while decreasing the modelling time. Mapping these parametric objects to survey data, however, is still a time-consuming task that requires further research. Promising developments have been made towards automatic object recognition and feature extraction from point clouds for as-built BIM. However, results are currently limited to simple and planar features. Further work is required for automatic accurate and reliable reconstruction of complex geometries from point cloud data. Procedural modelling can provide an automated solution for generating 3D geometries but lacks the detail and accuracy required for most asbuilt applications in AEC and heritage fields.

show abstract

“…Baik et al (2015) demonstrate the reconstruction of complex facades using point clouds in a BIM (Autodesk Revit). An overview of "automatic geometry generation from point clouds for BIM" in the context of room walls, windows, and floor are given by Thomson et al 2015. Specific methods are suggested by (Xiong et al, 2013).…”

Section: Problem Statement and Related Workmentioning

confidence: 99%

Automated Reconstruction of Historic Roof Structures From Point Clouds – Development and Examples

Pöchtrager

Styhler-Aydın

Döring-Williams

et al. 2017

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci.

View full text Add to dashboard Cite

ABSTRACT:The analysis of historic roof constructions is an important task for planning the adaptive reuse of buildings or for maintenance and restoration issues. Current approaches to modeling roof constructions consist of several consecutive operations that need to be done manually or using semi-automatic routines. To increase efficiency and allow the focus to be on analysis rather than on data processing, a set of methods was developed for the fully automated analysis of the roof constructions, including integration of architectural and structural modeling. Terrestrial laser scanning permits high-detail surveying of large-scale structures within a short time. Whereas 3-D laser scan data consist of millions of single points on the object surface, we need a geometric description of structural elements in order to obtain a structural model consisting of beam axis and connections. Preliminary results showed that the developed methods work well for beams in flawless condition with a quadratic cross section and no bending. Deformations or damages such as cracks and cuts on the wooden beams can lead to incomplete representations in the model. Overall, a high degree of automation was achieved.

show abstract

Automatic Geometry Generation from Point Clouds for BIM

Cited by 186 publications

References 25 publications

Xbim.Essentials: a library for interoperable building information applications

Xbim.Essentials: a library for interoperable building information applications

Current State of the Art Historic Building Information Modelling

Automated Reconstruction of Historic Roof Structures From Point Clouds – Development and Examples

Contact Info

Product

Resources

About