Automated monitoring of operation-level construction progress using 4D bim and daily site photologs

Kevin K. Han, Mani Golparvar-Fard

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Recent research efforts on improving construction progress monitoring have focused mainly on model-based assessment methods. In these methods, the expected performance typically is modeled with 4D BIM, and the actual performance is sensed through the 3D image-based reconstruction method or laser scanning. Previous research on 4D augmented reality (4D AR) models - which fuse 4D BIM with point clouds generated from daily site photologs - and also laser scan versus BIM, have shown that it is possible to conduct occupancy-based assessments, and as an indicator of progress, detect whether BIM elements are present in the scene. However, to detect deviations beyond typical work breakdown structure (WBS) in 4D BIM, these methods also need to capture operation-level details (e.g., current stage of concrete placement: formwork, rebars, concrete). To overcome current limitations, this paper presents methods for sampling and recognizing construction material from image-based point cloud data and using that information in a statistical form to infer the state of progress. The proposed method is validated using the 4D AR model generated for a building construction site. The preliminary experimental results show that it is feasible to sample and detect construction materials from the images that are registered to a point cloud model and use frequency histograms of the detected materials to infer the actual state of progress for BIM elements.

Original languageEnglish (US)
Title of host publicationConstruction Research Congress 2014
Subtitle of host publicationConstruction in a Global Network - Proceedings of the 2014 Construction Research Congress
PublisherAmerican Society of Civil Engineers
Pages1033-1042
Number of pages10
ISBN (Print)9780784413517
DOIs
StatePublished - Jan 1 2014
Event2014 Construction Research Congress: Construction in a Global Network, CRC 2014 - Atlanta, GA, United States
Duration: May 19 2014May 21 2014

Publication series

NameConstruction Research Congress 2014: Construction in a Global Network - Proceedings of the 2014 Construction Research Congress

Other

Other2014 Construction Research Congress: Construction in a Global Network, CRC 2014
Country/TerritoryUnited States
CityAtlanta, GA
Period5/19/145/21/14

ASJC Scopus subject areas

  • Building and Construction

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