Field Applicability of Augmented Reality Technology by Marker Mapping for Construction Project (Focused on Measurement Process of Rebar Work)

Kang, Leen-Seok

doi:10.12652/ksce.2013.33.6.2509

Cited by 2 publications

(1 citation statement)

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“…Such a marker method can be used as a tool to overcome the disadvantages of the markerless method and to reduce drawing interpretation errors and construction errors by superimposing and visualizing a 3D-modeled object on a construction site. For example, in case studies for inspecting rebar assemblies using AR at a construction site, it was found that the times required for the inspection of each case were 1.8 and 2.4 times shorter than the general inspection times [8]. However, the marker method has the following limitations: (a) significant time is required to generate the information of each object of the 3D model and match the information to markers [9][10][11][12], (b) it is cumbersome because markers must be installed in advance, and maintenance is difficult because they are easily damaged by external factors (weather, dust, etc.)…”

Section: Introduction 1research Background and Purposementioning

confidence: 99%

Development of a Construction-Site Work Support System Using BIM-Marker-Based Augmented Reality

Yoon

Lee

2023

Sustainability

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Augmented reality (AR) in 3D has been proposed as a way to overcome the shortcomings of 2D drawings. In particular, marker-based AR is known to be more accurate in implementation, but it is not easy to use on construction sites because it requires more time and effort to create corresponding markers for information. Therefore, the purpose of this study was to develop a building information modeling (BIM)-based AR construction work support system that can be applied to construction sites by automatically generating markers. The system algorithm consists of three modules. The first module classifies and groups the objects of the BIM-based 3D model by work order. The second is used to reconstruct the 3D model by groups and automatically generate the corresponding individual markers for each object. The third specifies the marker position and implements AR by automatically matching of 3D model objects to the corresponding markers. To verify this system, a case study was implemented by projecting the BIM-marker-based AR of a 3D model on an existing building. The results show that the developed system provides 3D models and work-related information in AR at the correct scale, size, and location.

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