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This paper studies the joint reconstruction of traffic speeds and travel times by fusing sparse sensor data. Raw speed data from inductive loop detectors and floating cars as well as travel time measurements are combined using different…

信号处理 · 电气工程与系统科学 2021-05-11 Lisa Kessler , Felix Rempe , Klaus Bogenberger

Accurate velocity estimation is critical in mobile robotics, particularly for driver assistance systems and autonomous driving. Wheel odometry fused with Inertial Measurement Unit (IMU) data is a widely used method for velocity estimation;…

机器人学 · 计算机科学 2025-05-19 Liam Boyle , Jonas Kühne , Nicolas Baumann , Niklas Bastuck , Michele Magno

Stroke is known as a major global health problem, and for stroke survivors it is key to monitor the recovery levels. However, traditional stroke rehabilitation assessment methods (such as the popular clinical assessment) can be subjective…

信号处理 · 电气工程与系统科学 2022-12-27 Xi Chen , Yu Guan , Jian Qing Shi , Xiu-Li Du , Janet Eyre

Real-time safety analysis has become a hot research topic as it can reveal the relationship between real-time traffic characteristics and crash occurrence more accurately, and these results could be applied to improve active traffic…

应用统计 · 统计学 2018-05-22 Jinghui Yuan , Mohamed Abdel-Aty , Ling Wang , Jaeyoung Lee , Xuesong Wang , Rongjie Yu

Smartphones are equipped with sensors such as accelerometers, gyroscope, and GPS in one cost-effective device with an acceptable level of accuracy. There have been some research studies carried out in terms of using smartphones to measure…

人机交互 · 计算机科学 2019-03-01 Sayna Firoozi Yeganeh , Ahmadreza Mahmoudzadeh , Mohammad Amin Azizpour , Amir Golroo

This paper presents an open-source software application for analyzing traffic camera footage, focusing on vehicle behavior and braking events at signalized urban highways. The core innovation is a robust ground-plane homography estimation…

This paper quantifies the effect of speed cameras on road traffic collisions using an approximate Bayesian doubly-robust (DR) causal inference estimation method. Previous empirical work on this topic, which shows a diverse range of…

应用统计 · 统计学 2019-08-20 Daniel J Graham , Cian Naik , Emma J McCoy , Haojie Li

Pavement surface textures obtained by a photogrammetry-based method for data acquisition and analysis are employed to investigate if related roughness descriptors are comparable to the frictional performance evaluated by finite element…

计算工程、金融与科学 · 计算机科学 2025-04-03 Ivana Ban , Jacopo Bonari , Marco Paggi

Urban traffic safety is a pressing concern in modern transportation systems, especially in rapidly growing metropolitan areas where increased traffic congestion, complex road networks, and diverse driving behaviors exacerbate the risk of…

应用统计 · 统计学 2024-09-18 Xinyu Li , Dayong , Wu , Xinyue Ye , Quan Sun

It is estimated that 80% of crashes and 65% of near collisions involved drivers inattentive to traffic for three seconds before the event. This paper develops an algorithm for extracting characteristics allowing the cell phones…

计算机视觉与模式识别 · 计算机科学 2014-08-12 Rafael A. Berri , Alexandre G. Silva , Rafael S. Parpinelli , Elaine Girardi , Rangel Arthur

Road safety is impacted by a range of factors that can be categorized into human, vehicle, and roadway/environmental elements. This research explores the connection between pavement performance and road safety, particularly in relation to…

物理与社会 · 物理学 2025-07-01 Prathyush Kumar Reddy Lebaku , Lu Gao , Jingran Sun , Xingju Wang , Xuejian Kang

Simulation testing is a fundamental approach for evaluating automated vehicles (AVs). To ensure its reliability, it is crucial to accurately replicate interactions between AVs and background traffic, which necessitates effective…

机器人学 · 计算机科学 2025-12-19 Jia Hu , Junqi Li , Xuerun Yan , Jintao Lai , Lianhua An

Acceleration sensors built into smartphones, i-pads or tablets can conveniently be used in the Physics laboratory. By virtue of the equivalence principle, a sensor fixed in a non-inertial reference frame cannot discern between a…

物理教育 · 物理学 2016-07-05 Martín Monteiro , Cecilia Cabeza , Arturo C. Martí

Motion estimation is the most critical process in video coding systems. First of all, it has a definitive impact on the rate-distortion performance given by the video encoder. Secondly, it is the most computationally intensive process…

多媒体 · 计算机科学 2011-11-09 S. Lopez , G. M. Callico , J. F. Lopez , R. Sarmiento

Every year we grow more dependent on wearable devices to gather personalized data, such as our movements, heart rate, respiration, etc. To capture this data, devices contain sensors, such as accelerometers and gyroscopes, that are able to…

人机交互 · 计算机科学 2022-07-08 Carlos Alvarado , Ghulam Jilani Quadri , Jennifer Adorno Nieves , Paul Rosen

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…

计算机视觉与模式识别 · 计算机科学 2022-02-07 YeongHyeon Park , JongHee Jung

Anticipation of accidents ahead of time in autonomous and non-autonomous vehicles aids in accident avoidance. In order to recognize abnormal events such as traffic accidents in a video sequence, it is important that the network takes into…

计算机视觉与模式识别 · 计算机科学 2020-06-17 Mishal Fatima , Muhammad Umar Karim Khan , Chong Min Kyung

A better understanding of interactive pedestrian behavior in critical traffic situations is essential for the development of enhanced pedestrian safety systems. Real-world traffic observations play a decisive role in this, since they…

Accurate estimation of the tire slip ratio is critical for vehicle safety, as it is necessary for vehicle control purposes. In this paper, an intelligent tire system is presented to develop a novel slip ratio estimation model using machine…

机器学习 · 计算机科学 2022-01-25 Nan Xu , Zepeng Tang , Hassan Askari , Jianfeng Zhou , Amir Khajepour

Simulation models for pedestrian crowds are a ubiquitous tool in research and industry. It is crucial that the parameters of these models are calibrated carefully and ultimately it will be of interest to compare competing models to decide…

多智能体系统 · 计算机科学 2020-05-13 Nikolai Bode