Background and activities


Tengjiao Jiang is currently a Postdoctoral Fellow in the Structural Dynamics group at the Department of Structural Engineering, Norwegian University of Science and Technology, NTNU.  His main task is to focus on the dynamic properties of railway bridges and catenary systems in service by photogrammetric measurements.

His research aims to adapt photogrammetric measurements to issues and applications in damage detection, model updating, validation and verification to improve maintenance and operation of infrastructure.


Research Interests

Computer Vision (CV)

Machine Learning (ML)


Structural Health Monitoring (SHM)

Structural Dynamics and Signal Processing


Research Highlights

A vision-based line-tracking system

A vision-based line-tracking system (VIBLITE) for uplift measurements of railway catenary systems. Photography: NTNU/Tengjiao Jiang.

A novel line-tracking technique

A novel line-tracking technique for catenary uplift measurements from noisy backgrounds.



Selected Publications

20191213 GraphicalAbstracts 03_600dpi

A robust line-tracking photogrammetry method for uplift measurements of railway catenary systems in noisy backgrounds

Tengjiao Jiang, Gunnstein Tomas Frøseth, Anders Rønnquist, Egil Fagerholt. Mechanical Systems and Signal Processing, October 2020, 144:106888.   [PDF]   [Open-source code]



A detailed investigation of uplift and damping of a railway catenary span in traffic using a vision-based line-tracking system

Tengjiao Jiang, Anders Rønnquist, Yang Song, Gunnstein T. Frøseth, Petter Nåvik. Journal of Sound and Vibration, June 2022, 527:116875.   [PDF]   



Research Group

Structural Dynamics 


Professor Anders Rønnquist, NTNU

Professor Ole Øiseth, NTNU


Scientific, academic and artistic work

Displaying a selection of activities. See all publications in the database

Journal publications