CUED Publications database

Automated vision tracking of project related entities

Brilakis, I and Park, M-W and Jog, G (2011) Automated vision tracking of project related entities. Advanced Engineering Informatics, 25. pp. 713-724. ISSN 1474-0346

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Abstract

Tracking of project related entities such as construction equipment, materials, and personnel is used to calculate productivity, detect travel path conflicts, enhance the safety on the site, and monitor the project. Radio frequency tracking technologies (Wi-Fi, RFID, UWB) and GPS are commonly used for this purpose. However, on large-scale sites, deploying, maintaining and removing such systems can be costly and time-consuming. In addition, privacy issues with personnel tracking often limits the usability of these technologies on construction sites. This paper presents a vision based tracking framework that holds promise to address these limitations. The framework uses videos from a set of two or more static cameras placed on construction sites. In each camera view, the framework identifies and tracks construction entities providing 2D image coordinates across frames. Combining the 2D coordinates based on the installed camera system (the distance between the cameras and the view angles of them), 3D coordinates are calculated at each frame. The results of each step are presented to illustrate the feasibility of the framework.

Item Type: Article
Uncontrolled Keywords: Artificial intelligence Automation Imaging techniques Automatic identification systems Models Information technology
Subjects: UNSPECIFIED
Divisions: Div D > Construction Engineering
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:21
Last Modified: 11 Aug 2014 01:10
DOI: 10.1016/j.aei.2011.01.003

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