Marker-Based Framework for Structural Health Monitoring of Civil Infrastructure
As no civil infrastructure can escape aging and deterioration, health monitoring can prevent and report serious structural damage. With the rapid evolution of computer vision algorithms, optical-based systems become an increasingly feasible option for automatic monitoring. This paper proposes a cheap and flexible standalone system based on marker tracking to report deflection of structural elements of civil infrastructure. A single marker is placed on tracked objects, which allows unambiguous identification of objects and accurate movement tracking. Accuracy of the system is discussed by presenting a theoretical analysis of the translation error. Additionally, as a proof of concept we extend our work with a low-cost laboratory test implementation.
M. Magdics et al., "Marker-Based Framework for Structural Health Monitoring of Civil Infrastructure", Applied Mechanics and Materials, Vol. 378, pp. 539-545, 2013