CUED Publications database

Adaptive computer vision-based 2D tracking of workers in complex environments

Konstantinou, E and Lasenby, J and Brilakis, I (2019) Adaptive computer vision-based 2D tracking of workers in complex environments. Automation in Construction, 103. pp. 168-184. ISSN 0926-5805

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Abstract

Monitoring of construction workers is important in managing labour productivity. To date, the construction sector relies either on intensive manual observations or intrusive tag-based practices. Visual tracking methods can provide automated and tag-less monitoring. However, no method to date has succeeded in tracking multiple workers, as construction sites are complex environments due to congestion, background clutter and occlusions. In addition, workers have similar appearance and exhibit illumination/scale/posture variations and abrupt changes in movement over the course of their task. To address these shortcomings, we propose a vision-based method that consists of 3 models. Firstly, an adaptive model provides continuous information about the previous position of workers and their appearance features. Secondly, a prediction model is used to calculate the current position of workers, and finally, an appearance model provides accurate localisation. Experimental results show that the proposed method achieves high performance and outperforms the latest relevant state of the art methods.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div D > Construction Engineering
Div E > Manufacturing Systems
Div F > Signal Processing and Communications
Depositing User: Cron Job
Date Deposited: 11 Feb 2019 20:15
Last Modified: 02 Sep 2021 05:10
DOI: 10.1016/j.autcon.2019.01.018