1 code implementation • 4 May 2023 • Jingxiao Liu, Siyuan Yuan, Yiwen Dong, Biondo Biondi, Hae Young Noh
Our approach uses the spatial dependency of multiple virtual sensors and Newton's laws of motion to combine the distributed sensor data to reduce uncertainties in vehicle detection and tracking.
no code implementations • 7 Dec 2022 • Yiwen Dong, Jingxiao Liu, Hae Young Noh
In the fusion stage, both cameras and vibration sensors are installed to record only a few trials of the subject's footstep data, through which we characterize the uncertainty in wave arrival time and model the wave velocity profiles for the given structure.
no code implementations • 7 Dec 2022 • Siyuan Yuan, Martijn van den Ende, Jingxiao Liu, Hae Young Noh, Robert Clapp, Cédric Richard, Biondo Biondi
In response, we introduce a self-supervised U-Net model that can suppress background noise and compress car-induced DAS signals into high-resolution pulses through spatial deconvolution.
1 code implementation • 18 Jul 2022 • Jingxiao Liu, Yujie Wei, Bingqing Chen
However, existing methods perform poorly when detecting small damages (e. g., cracks and exposed rebars) and thin objects with limited image samples, especially when the components of interest are highly imbalanced.
no code implementations • 10 May 2022 • Jingxiao Liu, Siyuan Yuan, Bin Luo, Biondo Biondi, Hae Young Noh
Bridge Health Monitoring (BHM) enables early damage detection of bridges and is thus critical for avoiding more severe damages that might result in major financial and human losses.
1 code implementation • 23 Jul 2021 • Jingxiao Liu, Susu Xu, Mario Bergés, Hae Young Noh
Monitoring bridge health using vibrations of drive-by vehicles has various benefits, such as no need for directly installing and maintaining sensors on the bridge.
no code implementations • 5 Jun 2020 • Jingxiao Liu, Mario Bergés, Jacobo Bielak, Hae Young Noh
Specifically, we train a deep network in an adversarial way to learn features that are 1) sensitive to damage and 2) invariant to different bridges.
no code implementations • 6 Feb 2020 • Jingxiao Liu, Bingqing Chen, Siheng Chen, Mario Berges, Jacobo Bielak, HaeYoung Noh
We introduce a physics-guided signal processing approach to extract a damage-sensitive and domain-invariant (DS & DI) feature from acceleration response data of a vehicle traveling over a bridge to assess bridge health.