Monocular 2D Camera-based Proximity Monitoring for Human-Machine Collision Warning on Construction Sites

• URL: http://arxiv.org/abs/2305.17931v2
• Date: Thu, 19 Oct 2023 16:48:41 GMT
• Title: Monocular 2D Camera-based Proximity Monitoring for Human-Machine Collision Warning on Construction Sites
• Authors: Yuexiong Ding, Xiaowei Luo
• Abstract summary: Accident of struck-by machines is one of the leading causes of casualties on construction sites. Monitoring workers' proximities to avoid human-machine collisions has aroused great concern in construction safety management. This study proposes a novel framework for proximity monitoring using only an ordinary 2D camera to realize real-time human-machine collision warning.
• Score: 1.7223564681760168
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Accident of struck-by machines is one of the leading causes of casualties on construction sites. Monitoring workers' proximities to avoid human-machine collisions has aroused great concern in construction safety management. Existing methods are either too laborious and costly to apply extensively, or lacking spatial perception for accurate monitoring. Therefore, this study proposes a novel framework for proximity monitoring using only an ordinary 2D camera to realize real-time human-machine collision warning, which is designed to integrate a monocular 3D object detection model to perceive spatial information from 2D images and a post-processing classification module to identify the proximity as four predefined categories: Dangerous, Potentially Dangerous, Concerned, and Safe. A virtual dataset containing 22000 images with 3D annotations is constructed and publicly released to facilitate the system development and evaluation. Experimental results show that the trained 3D object detection model achieves 75% loose AP within 20 meters. Besides, the implemented system is real-time and camera carrier-independent, achieving an F1 of roughly 0.8 within 50 meters under specified settings for machines of different sizes. This study preliminarily reveals the potential and feasibility of proximity monitoring using only a 2D camera, providing a new promising and economical way for early warning of human-machine collisions.

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