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In this paper, we address the challenging problem of detecting bearing faults in railway vehicles by analyzing acoustic signals recorded during regular operation. For this, we introduce Mel Frequency Cepstral Coefficients (MFCCs) as…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-25 Matthias Kreuzer , David Schmidt , Simon Wokusch , Walter Kellermann

Rail breaks are one of the most common causes of derailments internationally. This is no different for the South African Iron Ore line. Many rail breaks occur as a heavy-haul train passes over a crack, large defect or defective weld. In…

Machine Learning · Computer Science 2022-08-26 Rebecca M. C. Taylor , Johan A. du Preez

Globally rising demand for transportation by rail is pushing existing infrastructure to its capacity limits, necessitating the development of accurate, robust, and high-frequency positioning systems to ensure safe and efficient train…

Robotics · Computer Science 2023-08-24 Cornelius von Einem , Andrei Cramariuc , Roland Siegwart , Cesar Cadena , Florian Tschopp

Tram-human interaction safety is an important challenge, given that trams frequently operate in densely populated areas, where collisions can range from minor injuries to fatal outcomes. This paper addresses the issue from the perspective…

Computer Vision and Pattern Recognition · Computer Science 2025-09-17 Ondřej Valach , Ivan Gruber

Image data has a great potential of helping post-earthquake visual inspections of civil engineering structures due to the ease of data acquisition and the advantages in capturing visual information. A variety of techniques have been applied…

Computer Vision and Pattern Recognition · Computer Science 2018-05-17 Yasutaka Narazaki , Vedhus Hoskere , Tu A. Hoang , Billie F. Spencer

Railway transportation is the artery of China's national economy and plays an important role in the development of today's society. Due to the late start of China's railway security inspection technology, the current railway security…

Computer Vision and Pattern Recognition · Computer Science 2019-08-01 Qing Song , Yao Guo , Jianan Jiang , Chun Liu , Mengjie Hu

Although training data is essential for machine learning, railway companies are facing difficulties in gathering adequate images of defective equipment due to their proactive replacement of would be defective equipment. Nevertheless,…

Computer Vision and Pattern Recognition · Computer Science 2021-02-26 Takuro Hoshi , Yohei Baba , Gaurang Gavai

A significant number of traffic crashes are secondary crashes that occur because of an earlier incident on the road. Thus, early detection of traffic incidents is crucial for road users from safety perspectives with a potential to reduce…

Computers and Society · Computer Science 2026-02-10 Sudipta Roy , Samiul Hasan

Osteoporosis can be identified by looking at 2D x-ray images of the bone. The high degree of similarity between images of a healthy bone and a diseased one makes classification a challenge. A good bone texture characterization technique is…

Computer Vision and Pattern Recognition · Computer Science 2017-07-19 Rahul Paul , Saeed Alahamri , Sulav Malla , Ghulam Jilani Quadri

Automating the current bridge visual inspection practices using drones and image processing techniques is a prominent way to make these inspections more effective, robust, and less expensive. In this paper, we investigate the development of…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Andrii Kompanets , Gautam Pai , Remco Duits , Davide Leonetti , Bert Snijder

In the realm of industrial manufacturing, product inspection remains a significant bottleneck, with only a small fraction of manufactured items undergoing inspection for surface defects. Advances in imaging systems and AI can allow…

Image and Video Processing · Electrical Eng. & Systems 2023-12-05 Tapan Ganatma Nakkina , Adithyaa Karthikeyan , Yuhao Zhong , Ceyhun Eksin , Satish T. S. Bukkapatnam

Fractured metal fragments with rough and irregular surfaces are often found at crime scenes. Current forensic practice visually inspects the complex jagged trajectory of fractured surfaces to recognize a ``match'' using comparative…

Point machines (PMs) are used for switching and locking railway turnouts, and are considered one of the most critical elements of a railway signal system. The failure of the point mechanism directly affects the operation of the railway and…

Signal Processing · Electrical Eng. & Systems 2018-09-10 Chong Bian , Shunkun Yang , Tingting Huang , Qingyang Xu , Jie Liu , Enrico Zio

Identification of plant disease is usually done through visual inspection or during laboratory examination which causes delays resulting in yield loss by the time identification is complete. On the other hand, complex deep learning models…

Computer Vision and Pattern Recognition · Computer Science 2021-02-10 Nisar Ahmed , Hafiz Muhammad Shahzad Asif , Gulshan Saleem

One essential feature of an autonomous train is minimizing collision risks with third-party objects. To estimate the risk, the control system must identify topological information of all the rail routes ahead on which the train can possibly…

Computer Vision and Pattern Recognition · Computer Science 2024-07-26 Jungwon Kang , Mohammadjavad Ghorbanalivakili , Gunho Sohn , David Beach , Veronica Marin

In this study, we explore the use of Convolutional Neural Networks for improving train speed estimation accuracy, addressing the complex challenges of modern railway systems. We investigate three CNN architectures - single-branch 2D,…

Machine Learning · Computer Science 2025-08-26 Haitao Tian , Argyrios Zolotas , Miguel Arana-Catania

Frequent mine disasters cause a large number of casualties and property losses. Autonomous driving is a fundamental measure for solving this problem, and track detection is one of the key technologies for computer vision to achieve downhole…

Computer Vision and Pattern Recognition · Computer Science 2019-04-18 Jia Li , Xing Wei , Guoqiang Yang , Xiao Sun , Changliang Li

Automated inspection and detection of foreign objects on railways is important for rail transportation safety as it helps prevent potential accidents and trains derailment. Most existing vision-based approaches focus on the detection of…

Computer Vision and Pattern Recognition · Computer Science 2021-08-06 Tiange Wang , Zijun Zhang , Fangfang Yang , Kwok-Leung Tsui

Detection of surface defects is one of the most important issues in the field of image processing and machine vision. In this article, a method for detecting surface defects based on energy changes in co-occurrence matrices is presented.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-17 Nandara K. Krishnand , Akshakhi Kumar Pritoonka , Faeze Kiani

Quality control is a fundamental component of many manufacturing processes, especially those involving casting or welding. However, manual quality control procedures are often time-consuming and error-prone. In order to meet the growing…

Computer Vision and Pattern Recognition · Computer Science 2018-09-05 Max Ferguson , Ronay Ak , Yung-Tsun Tina Lee , Kincho H. Law