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Human trajectory data is crucial in urban planning, traffic engineering, and public health. However, directly using real-world trajectory data often faces challenges such as privacy concerns, data acquisition costs, and data quality. A…

机器学习 · 计算机科学 2025-11-05 Qingyue Long , Can Rong , Tong Li , Yong Li

Pedestrian detection is an initial step to perform outdoor scene analysis, which plays an essential role in many real-world applications. Although having enjoyed the merits of deep learning frameworks from the generic object detectors,…

计算机视觉与模式识别 · 计算机科学 2019-12-24 Jialiang Zhang , Lixiang Lin , Yang Li , Yun-chen Chen , Jianke Zhu , Yao Hu , Steven C. H. Hoi

Pedestrian trajectory prediction is essential for various applications in active traffic management, urban planning, traffic control, crowd management, and autonomous driving, aiming to enhance traffic safety and efficiency. Accurately…

计算机视觉与模式识别 · 计算机科学 2024-09-24 Rei Tamaru , Pei Li , Bin Ran

The aim of this paper is to develop a crowd motion model designed to handle highly packed situations. The model we propose rests on two principles: We first define a spontaneous velocity which corresponds to the velocity each individual…

数值分析 · 数学 2009-01-09 Bertrand Maury , Juliette Venel

We present a novel descriptor for crowd behavior analysis and anomaly detection. The goal is to measure by appropriate patterns the speed of formation and disintegration of groups in the crowd. This descriptor is inspired by the concept of…

计算机视觉与模式识别 · 计算机科学 2020-10-20 Giulia Orrù , Davide Ghiani , Maura Pintor , Gian Luca Marcialis , Fabio Roli

In human crowds as well as in many animal societies, local interactions among individuals often give rise to self-organized collective organizations that offer functional benefits to the group. For instance, flows of pedestrians moving in…

In this paper we report on a methodology to model pedestrian behaviours whilst aggregate variables are concerned, with potential applications to different situations, such as evacuating a building in emergency events. The approach consists…

其他计算机科学 · 计算机科学 2013-03-20 Gonçalo Vasconcelos , Marcelo Petry , João Emílio Almeida , Rosaldo J. F. Rossetti , António Leça Coelho

This paper presents a methodology to detect personality and basic emotion characteristics of crowds in video sequences. Firstly, individuals are detected and tracked, then groups are recognized and characterized. Such information is then…

计算机视觉与模式识别 · 计算机科学 2021-04-28 Rodolfo Migon Favaretto , Paulo Knob , Soraia Raupp Musse , Felipe Vilanova , Ângelo Brandelli Costa

We report on two series of experiments, conducted in the frame of two different collaborations designed to study how pedestrians adapt their trajectories and velocities in groups or crowds. Strong emphasis is put on the motivations for the…

Advancements in Intelligent Traffic Systems (ITS) have made huge amounts of traffic data available through automatic data collection. A big part of this data is stored as trajectories of moving vehicles and road users. Automatic analysis of…

机器学习 · 计算机科学 2021-12-06 Mohsen Rezaie , Nicolas Saunier

Security is an important topic in our contemporary world, and the ability to automate the detection of any events of interest that can take place in a crowd is of great interest to a population. We hypothesize that the detection of events…

This paper presents a new approach to behavioral-social dynamics of pedestrian crowds by suitable development of methods of the kinetic theory. It is shown how heterogeneous individual behaviors can modify the collective dynamics, as well…

物理与社会 · 物理学 2014-11-05 Nicola Bellomo , Livio Gibelli

Target tracking and trajectory modeling have important applications in surveillance video analysis and have received great attention in the fields of road safety and community security. In this work, we propose a lightweight real-time video…

计算机视觉与模式识别 · 计算机科学 2023-05-16 Aximu Yuemaier , Xiaogang Chen , Xingyu Qian , Longfei Liang , Shunfeng Li , Zhitang Song

Mining the underlying patterns in gigantic and complex data is of great importance to data analysts. In this paper, we propose a motion pattern approach to mine frequent behaviors in trajectory data. Motion patterns, defined by a set of…

计算机视觉与模式识别 · 计算机科学 2015-01-06 Mahdi M. Kalayeh , Stephen Mussmann , Alla Petrakova , Niels da Vitoria Lobo , Mubarak Shah

Predicting the collective motion of a group of pedestrians (a crowd) under the vehicle influence is essential for the development of autonomous vehicles to deal with mixed urban scenarios where interpersonal interaction and vehicle-crowd…

计算机视觉与模式识别 · 计算机科学 2019-04-23 Dongfang Yang , Linhui Li , Keith Redmill , Ümit Özgüner

Thanks to the diffusion of the Internet of Things, nowadays it is possible to sense human mobility almost in real time using unconventional methods (e.g., number of bikes in a bike station). Due to the diffusion of such technologies, the…

计算机视觉与模式识别 · 计算机科学 2022-03-16 Marco Cardia , Massimiliano Luca , Luca Pappalardo

Crowd gatherings at social and cultural events are increasing in leaps and bounds with the increase in population. Surveillance through computer vision and expert decision making systems can help to understand the crowd phenomena at large…

计算机视觉与模式识别 · 计算机科学 2019-04-17 Shreetam Behera , Debi Prosad Dogra , Malay Kumar Bandyopadhyay , Partha Pratim Roy

Crowd flow describes the elementary group behavior of crowds. Understanding the dynamics behind these movements can help to identify various abnormalities in crowds. However, developing a crowd model describing these flows is a challenging…

计算机视觉与模式识别 · 计算机科学 2020-08-19 Shreetam Behera , Debi Prosad Dogra , Malay Kumar Bandyopadhyay , Partha Pratim Roy

In high population cities, the gatherings of large crowds in public places and public areas accelerate or jeopardize people safety and transportation, which is a key challenge to the researchers. Although much research has been carried out…

计算机视觉与模式识别 · 计算机科学 2019-09-11 Muhammad Siraj

This contribution describes efforts to model the behavior of individual pedestrians and their interactions in crowds, which generate certain kinds of self-organized patterns of motion. Moreover, this article focusses on the dynamics of…

物理与社会 · 物理学 2013-09-09 Dirk Helbing , Anders Johansson