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Foreign substances on the road surface, such as rainwater or black ice, reduce the friction between the tire and the surface. The above situation will reduce the braking performance and make difficult to control the vehicle body posture. In…

Sound · Computer Science 2021-12-15 YeongHyeon Park , JoonSung Lee , Myung Jin Kim , Wonseok Park

Wet weather makes water film over the road and that film causes lower friction between tire and road surface. When a vehicle passes the low-friction road, the accident can occur up to 35% higher frequency than a normal condition road. In…

Computer Vision and Pattern Recognition · Computer Science 2022-02-07 YeongHyeon Park , JongHee Jung

Different machines can exhibit diverse frequency patterns in their emitted sound. This feature has been recently explored in anomaly sound detection and reached state-of-the-art performance. However, existing methods rely on the manual or…

Sound · Computer Science 2023-09-07 Hejing Zhang , Jian Guan , Qiaoxi Zhu , Feiyang Xiao , Youde Liu

Usage-based insurance is becoming the new standard in vehicle insurance; it is therefore relevant to find efficient ways of using insureds' driving data. Applying anomaly detection to vehicles' trip summaries, we develop a method allowing…

Machine Learning · Computer Science 2022-09-27 Francis Duval , Jean-Philippe Boucher , Mathieu Pigeon

Due to its relevance in intelligent transportation systems, anomaly detection in traffic videos has recently received much interest. It remains a difficult problem due to a variety of factors influencing the video quality of a real-time…

Computer Vision and Pattern Recognition · Computer Science 2021-04-21 Keval Doshi , Yasin Yilmaz

Road accident can be triggered by wet road because it decreases skid resistance. To prevent the road accident, detecting road surface abnomality is highly useful. In this paper, we propose the deep learning based cost-effective real-time…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 YeongHyeon Park , JongHee Jung

We describe and validate a novel data-driven approach to the real time detection and classification of traffic anomalies based on the identification of atypical fluctuations in the relationship between density and flow. For aggregated data…

Applications · Statistics 2020-12-22 Kieran Kalair , Colm Connaughton

Unsupervised anomalous sound detection aims to detect unknown abnormal sounds of machines from normal sounds. However, the state-of-the-art approaches are not always stable and perform dramatically differently even for machines of the same…

Sound · Computer Science 2022-05-02 Youde Liu , Jian Guan , Qiaoxi Zhu , Wenwu Wang

In this paper, we propose a deep learning based model for Acoustic Anomaly Detection of Machines, the task for detecting abnormal machines by analysing the machine sound. By conducting extensive experiments, we indicate that multiple…

Audio and Speech Processing · Electrical Eng. & Systems 2024-03-04 Tin Nguyen , Lam Pham , Phat Lam , Dat Ngo , Hieu Tang , Alexander Schindler

Anomaly driving detection is an important problem in advanced driver assistance systems (ADAS). It is important to identify potential hazard scenarios as early as possible to avoid potential accidents. This study proposes an unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Yuning Qiu , Teruhisa Misu , Carlos Busso

Anomaly detection through video analysis is of great importance to detect any anomalous vehicle/human behavior at a traffic intersection. While most existing works use neural networks and conventional machine learning methods based on…

Computer Vision and Pattern Recognition · Computer Science 2018-08-31 Mohammmad Farhadi Bajestani , Seyed Soroush Heidari Rahmat Abadi , Seyed Mostafa Derakhshandeh Fard , Roozbeh Khodadadeh

As the labor force decreases, the demand for labor-saving automatic anomalous sound detection technology that conducts maintenance of industrial equipment has grown. Conventional approaches detect anomalies based on the reconstruction…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-20 Kaori Suefusa , Tomoya Nishida , Harsh Purohit , Ryo Tanabe , Takashi Endo , Yohei Kawaguchi

The performance of vehicle active safety systems is dependent on the friction force arising from the contact of tires and the road surface. Therefore, an adequate knowledge of the tire-road friction coefficient is of great importance to…

Neural and Evolutionary Computing · Computer Science 2019-11-18 Alexandre M. Ribeiro , Alexandra Moutinho , André R. Fioravanti , Ely C. de Paiva

In this work, a novel deep neural network, designed to enhance the efficiency and effectiveness of unsupervised sound anomaly detection, is presented. The proposed model exploits an attention module and separable convolutions to identify…

Audio and Speech Processing · Electrical Eng. & Systems 2024-10-14 Michael Neri , Marco Carli

Autonomous driving systems are broadly used equipment in the industries and in our daily lives, they assist in production, but are majorly used for exploration in dangerous or unfamiliar locations. Thus, for a successful exploration,…

Computer Vision and Pattern Recognition · Computer Science 2018-09-18 Y. O. Agunbiade , J. O. Dehinbo , T. Zuva , A. K. Akanbi

Any intelligent traffic monitoring system must be able to detect anomalies such as traffic accidents in real time. In this paper, we propose a Decision-Tree - enabled approach powered by Deep Learning for extracting anomalies from traffic…

Computer Vision and Pattern Recognition · Computer Science 2021-04-15 Armstrong Aboah , Maged Shoman , Vishal Mandal , Sayedomidreza Davami , Yaw Adu-Gyamfi , Anuj Sharma

In the end-of-line test of geared motors, the evaluation of product qual-ity is important. Due to time constraints and the high diversity of variants, acous-tic measurements are more economical than vibration measurements. However, the…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-29 Peter Wissbrock , David Pelkmann , Yvonne Richter

Detecting anomalies in traffic scenes is crucial for ensuring safety in autonomous driving, yet collecting representative anomalous data remains challenging. Existing anomaly detection methods are highly specialized and rely on normality as…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Albert Schotschneider , Daniel Bogdoll , Svetlana Pavlitska , Ahmed Abouelazm , Johann Marius Zoellner

Spectrum anomaly detection is of great importance in wireless communication to secure safety and improve spectrum efficiency. However, spectrum anomaly detection faces many difficulties, especially in unauthorized frequency bands. For…

Signal Processing · Electrical Eng. & Systems 2021-04-20 Jing Xu , Yu Tian , Shuai Yuan , Naijin Liu

This paper proposes an unsupervised anomalous sound detection method using sound separation. In factory environments, background noise and non-objective sounds obscure desired machine sounds, making it challenging to detect anomalous…

Sound · Computer Science 2023-05-26 Kanta Shimonishi , Kota Dohi , Yohei Kawaguchi
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