An Automatic Project Progress Monitoring Model by Integrating Auto CAD and Digital Photos

Memon, Zubair Ahmed; Majid, Muhd Zaimi Abd; Mustaffar, Mushairry

doi:10.1061/40794(179)151

Cited by 30 publications

(24 citation statements)

References 10 publications

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“…The availability of inexpensive point-and-shoot and time-lapse cameras as well as smartphones has significantly increased the number of photos that are being captured on construction sites on a daily basis. Such an as-built 3D model is then compared to 3D CAD models to automatically calculate the percentage completion of each component and measure the progress of construction projects (Memon et al 2005). Numerous researchers have applied photogrammetry for the automated collection of data.…”

Section: D Imaging Technologiesmentioning

confidence: 99%

Automated Data Collection for Progress Tracking Purposes: A Review of Related Techniques

Touzani

Nehdi

2017

Facing the Challenges in Structural Engineering

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Abstract. The automated data collection of civil infrastructure projects, whether under construction, newly put into service, or in operation has been receiving increased attention by researchers and practitioners. Such real-time progress tracking is essential for the active monitoring of production during the construction phase of a project and for the built assets during their service lives. Automatic progress tracking can result in timely detection of potential time delays and construction discrepancies and directly supports project control decision-making. This paper outlines recent research efforts in this field and technological developments that aim to facilitate project management toward achieving project objectives. 3D imaging, geo-spatial, enhanced IT, and augmented reality technologies have recently achieved significant advances in this field. These technologies are discussed and compared herein in terms of their strengths and limitations to identify various trends concerning their applicability in data acquisition for construction projects and to formulate recommendations for their suitability in different projects. Prospects for improvement and challenges that can be expected in future research and development are considered. It is hoped that this discussion will assist construction stakeholders in choosing appropriate data collection tools, and motivate further research and development to assist in delivering projects on time and within budget.

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Section: D Imaging Technologiesmentioning

confidence: 99%

Automated Data Collection for Progress Tracking Purposes: A Review of Related Techniques

Touzani

Nehdi

2017

Facing the Challenges in Structural Engineering

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“…Memom et al [12] identified the techniques, which were used in the construction industry for monitoring and evaluating the actual physical progress, and discuss the Digitalizing Construction Monitoring (DCM) model. The DCM model is an interactive system integrating 3D CAD drawings and digital images.…”

Section: Photogrammetry In Constructionmentioning

confidence: 99%

Rapid 3D Modelling of an Existing Building using Photos

Liu

Kang

2014

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

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-A three-dimensional (3D) laser scanner is one of the most well known devices when it comes to creating a 3D model of existing bridges and buildings. Most 3D scanners can pick up point clouds very accurately, which can be used to create an accurate 3D model of existing objects. One may speculate that a 3D laser scanner can also be used to pick up the status of a construction project on the job site and transform them into a 3D computer model. However, most 3D laser scanners are still expensive and they are not easy use yet especially on a congested construction site. In addition, it takes a significant amount of time to create a 3D computer model using point clouds picked up by the laser scanner. As emerging photogrammetry techniques demonstrated the use of photos instead for rapid 3D modelling, one may be wondering 1) if this technique can be used to create a 3D model of a construction site quickly, and 2) if this model is accurate enough to help project managers make some decisions. This paper presents our test demonstrating the process of creating a 3D model of an existing building using photos. It presents some challenges we faced when taking photos and creating a 3D model. This paper also presents the method we came up with to create a 3D model of the entire building without using any control points.

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“…Photographs of a site are taken as a matter of course but mainly just for recording purposes. Memon et al [12] is one of the very few construction studies investigating imaging for progress assessment. The authors use a commercial package to recover a 3D model of the structures on site; these are then compared to the CAD model of the planned bulding.…”

Section: Context and Motivationmentioning

confidence: 99%

Towards Automated Visual Assessment of Progress in Construction Projects

Lukins¹,

Trucco

2007

Procedings of the British Machine Vision Conference 2007

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Current assessment of progress in construction projects is a manual task that is often infrequent and error prone. Images of sites are extremely cluttered and rife with shadows, occlusions, equipment, and people -making them extremely hard to analyse. We present a first prototype system capable of detecting changes on a building site observed by a fixed camera, and classifying such changes as either actual structural events, or as unrelated. We exploit a prior building model to align camera and scene, thus identifying image regions where building components are expected to appear. This then enables us to home in on significant change events and verify the actual presence of a particular type of component. We place our approach within an emerging paradigm for integration in the construction industry, and highlight the benefits of automated image based feedback.

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An Automatic Project Progress Monitoring Model by Integrating Auto CAD and Digital Photos

Cited by 30 publications

References 10 publications

Automated Data Collection for Progress Tracking Purposes: A Review of Related Techniques

Automated Data Collection for Progress Tracking Purposes: A Review of Related Techniques

Rapid 3D Modelling of an Existing Building using Photos

Towards Automated Visual Assessment of Progress in Construction Projects

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