2D Vision Tracking Methods' Performance Comparison for 3D Tracking of Construction Resources

Abstract

In construction sites, tracking personnel, equipment, and materials is necessary in many applications such as asset management and progress monitoring. Vision tracking as a tracking technique has two unique capabilities which make it ideal for tracking on large scale, congested construction sites; tracking from a distance and tracking multiple elements from a single camera. 2D tracking results can be obtained through each camera and the 3D positions can be calculated by calibrating multiple cameras. 2D vision tracking methods vary and each method has unique capabilities, but little is known about the appropriateness of each method for tracking construction resources. This paper presents an evaluation of these methods that aims to identify the one most suitable for 3D tracking in construction sites. To satisfy this goal, 2D tracking methods are categorized, metrics are identified and performance of two categories of methods is evaluated based on these metrics. This evaluation has been used to find some preliminary results that can ultimately help with selection of the most suitable category of 2D vision tracking methods for construction applications.