Representation Requirements of As-Is Building Information Models Generated from Laser Scanned Point Cloud Data

Anil, Engin Burak; Akinci, Burcu; Huber, Daniel

doi:10.22260/isarc2011/0063

Cited by 17 publications

(6 citation statements)

References 6 publications

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“…Papers with regard to organizational/legal issues concentrate on collaboration of consortia partners in new building projects and in facility management (FM). Publications with a broader scope considering more than one of the previous issues [6,68,69] (e.g. LoD in BIM) and covering several BIM issues [7,8,17,27] mainly for new buildings are sporadic.…”

Section: Originalitymentioning

confidence: 99%

Building Information Modeling (BIM) for existing buildings — Literature review and future needs

Volk

Stengel

Schultmann

2014

Automation in Construction

1,672

1,064

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While BIM processes are established for new buildings, the majority of existing buildings is not maintained, refurbished or deconstructed with BIM yet. Promising benefits of efficient resource management motivate research to overcome uncertainties of building condition and deficient documentation prevalent in existing buildings. Due to rapid developments in BIM research, involved stakeholders demand a state-of-the-art overview of BIM implementation and research in existing buildings. This paper presents a review of over recent 180 publications on the topic. Results show scare BIM implementation in existing buildings yet, due to challenges of (1) high modeling/conversion effort from captured building data into semantic BIM objects, (2) updating of information in BIM and (3) handling of uncertain data, objects and relations in BIM occurring in existing buildings. Despite fast developments and spreading standards, challenging research opportunities arise from process automation and BIM adaption to existing buildings' requirements.

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Section: Originalitymentioning

confidence: 99%

Building Information Modeling (BIM) for existing buildings — Literature review and future needs

Volk

Stengel

Schultmann

2014

Automation in Construction

1,672

1,064

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“…Anil et al [10] identified several characteristics induced by the use of laser scanner data for as-is BIM creation. First of all, the point cloud density, which describes the average spacing between points, conditions the size of the smallest object that can be modelled.…”

Section: From Point Clouds To Building Information Modelmentioning

confidence: 99%

From Point Clouds to Building Information Models: 3D Semi-Automatic Reconstruction of Indoors of Existing Buildings

2017

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Abstract:The creation of as-built Building Information Models requires the acquisition of the as-is state of existing buildings. Laser scanners are widely used to achieve this goal since they permit to collect information about object geometry in form of point clouds and provide a large amount of accurate data in a very fast way and with a high level of details. Unfortunately, the scan-to-BIM (Building Information Model) process remains currently largely a manual process which is time consuming and error-prone. In this paper, a semi-automatic approach is presented for the 3D reconstruction of indoors of existing buildings from point clouds. Several segmentations are performed so that point clouds corresponding to grounds, ceilings and walls are extracted. Based on these point clouds, walls and slabs of buildings are reconstructed and described in the IFC format in order to be integrated into BIM software. The assessment of the approach is proposed thanks to two datasets. The evaluation items are the degree of automation, the transferability of the approach and the geometric quality of results of the 3D reconstruction. Additionally, quality indexes are introduced to inspect the results in order to be able to detect potential errors of reconstruction.

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“…The first is used to describe the shape of an object, by means of an analytical, mathematical and abstract model. The second produces very dense and elaborate coordinate data points for the surfaces of a physical object [30,31]. For this reason, one objective of this paper is to perform an analysis of the accuracy of the EM, in two modes of data capture: (1) Photogrammetry to get 3D point coordinates; and (2) Photomodeling to get 3D point cloud and the color of the object observed.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Uncertainty in a Middle-Cost Device for 3D Measurements in BIM Perspective

Sánchez

Naranjo

Jiménez

et al. 2016

Sensors

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Medium-cost devices equipped with sensors are being developed to get 3D measurements. Some allow for generating geometric models and point clouds. Nevertheless, the accuracy of these measurements should be evaluated, taking into account the requirements of the Building Information Model (BIM). This paper analyzes the uncertainty in outdoor/indoor three-dimensional coordinate measures and point clouds (using Spherical Accuracy Standard (SAS) methods) for Eyes Map, a medium-cost tablet manufactured by e-Capture Research & Development Company, Mérida, Spain. To achieve it, in outdoor tests, by means of this device, the coordinates of targets were measured from 1 to 6 m and cloud points were obtained. Subsequently, these were compared to the coordinates of the same targets measured by a Total Station. The Euclidean average distance error was 0.005–0.027 m for measurements by Photogrammetry and 0.013–0.021 m for the point clouds. All of them satisfy the tolerance for point cloud acquisition (0.051 m) according to the BIM Guide for 3D Imaging (General Services Administration); similar results are obtained in the indoor tests, with values of 0.022 m. In this paper, we establish the optimal distances for the observations in both, Photogrammetry and 3D Photomodeling modes (outdoor) and point out some working conditions to avoid in indoor environments. Finally, the authors discuss some recommendations for improving the performance and working methods of the device.

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Representation Requirements of As-Is Building Information Models Generated from Laser Scanned Point Cloud Data

Cited by 17 publications

References 6 publications

Building Information Modeling (BIM) for existing buildings — Literature review and future needs

Building Information Modeling (BIM) for existing buildings — Literature review and future needs

From Point Clouds to Building Information Models: 3D Semi-Automatic Reconstruction of Indoors of Existing Buildings

Analysis of Uncertainty in a Middle-Cost Device for 3D Measurements in BIM Perspective

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