A deep extractor for visual rail surface inspection

Z Zhang, M Liang, Z Wang - IEEE Access, 2021 - ieeexplore.ieee.org
Rail surface inspection using a visual inspection system is an important task in the
maintenance of railway networks. Recent inspection approaches have attempted to harness …

Rail corrugation detection and characterization using computer vision

H Lee, J Hong, TW Wendimagegn, H Lee - Sensors, 2021 - mdpi.com
Rail corrugation appears as oscillatory wear on the rail surface caused by the interaction
between the train wheels and the railway. Corrugation shortens railway service life and …

Demiryolu bağlantı elemanlarında bulunan kusurların YOLOv4 ve bulanık mantık kullanarak tespiti

E Güçlü, İ Aydın, K Şahbaz, E Akın… - Demiryolu …, 2021 - dergipark.org.tr
Demiryollarında bulunan bağlantı elemanları, raylı sistemlerin en önemli bileşenidir.
Bağlantı elemanları, diğer bileşenleri birbirine bağlar ve trenin raylar üzerinde güvenli bir …

Automatic inspection of railcar wheels using laser and image sensor

T Emoto, AA Ravankar, A Ravankar… - 2021 60th Annual …, 2021 - ieeexplore.ieee.org
Periodic condition monitoring of railcar wheels is crucial for smooth operation and
passenger or goods safety. Currently, most periodic inspections are conducted by skilled …

Flexible extrinsic parameter calibration for multicameras with nonoverlapping field of view

W Zou, Z Wei - IEEE Transactions on Instrumentation and …, 2021 - ieeexplore.ieee.org
In many measurement applications using multicameras, there is often a nonoverlapping field
of view (nFOV) between multicameras. It benefits greatly from having all of the cameras …

Rail surface defect inspection via a self-reference template and similarity evaluation

N Lang, D Wang, P Cheng, L Liu - Measurement Science and …, 2021 - iopscience.iop.org
Although railway transportation has rapidly evolved in recent times, the existing manual
maintenance of rail infrastructure presents several challenges, such as labor intensity and …

Calibration of binocular cameras with non-overlapping fields of view based on planar mirrors

Z Zhu, Z Wu, F Zhou, P Xiang, S Wang… - Optical …, 2021 - spiedigitallibrary.org
Multicamera systems are commonly applied in the large field-of-view (FOV) measurements.
However, two cameras may have a non-overlapping FOV in some scenes, and traditional …

A new flexible laser beam profiler for the inspection of train wheels

M Torabi, SM Mousavi G… - Proceedings of the …, 2021 - journals.sagepub.com
In this paper, a flexible laser beam profiler is proposed to easily measure the profile of a train
wheel for railway inspection. It only requires two laser beams (together and in parallel) to …

Inspección de la planitud de carriles con técnicas basadas en visión por computador

P Manso Bernal - 2021 - digibuo.uniovi.es
La industria metalúrgica es cada vez más demandante de productos, en los cuales, la
calidad de fabricación no pueda ser puesta en duda. Debido a esta necesidad, cada vez …