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Understanding pattern formation in crossing pedestrian flows is essential for analyzing and managing high-density crowd dynamics in urban environments. This study presents two complementary methodological approaches to detect and…

物理与社会 · 物理学 2025-04-24 Piotr Nyczka , Pratik Mullick

It is still an open and challenging problem for mobile robots navigating along time-efficient and collision-free paths in a crowd. The main challenge comes from the complex and sophisticated interaction mechanism, which requires the robot…

机器人学 · 计算机科学 2021-03-01 Zhiqian Zhou , Pengming Zhu , Zhiwen Zeng , Junhao Xiao , Huimin Lu , Zongtan Zhou

We tackle the long-term prediction of scene evolution in a complex downtown scenario for automated driving based on Lidar grid fusion and recurrent neural networks (RNNs). A bird's eye view of the scene, including occupancy and velocity, is…

计算机视觉与模式识别 · 计算机科学 2019-06-10 Marcel Schreiber , Stefan Hoermann , Klaus Dietmayer

Sets of moving entities can form groups which travel together for significant amounts of time. Tracking such groups is an important analysis task in a variety of areas, such as wildlife ecology, urban transport, or sports analysis.…

数据结构与算法 · 计算机科学 2023-04-18 Max van Mulken , Bettina Speckmann , Kevin Verbeek

Understanding and representing traffic patterns are key to detecting anomalous trajectories in the transportation domain. However, some trajectories can exhibit heterogeneous maneuvering characteristics despite confining to normal patterns.…

机器学习 · 计算机科学 2022-03-15 Sandeep Kumar Singh , Jaya Shradha Fowdur , Jakob Gawlikowski , Daniel Medina

Particle filters flexibly represent multiple posterior modes nonparametrically, via a collection of weighted samples, but have classically been applied to tracking problems with known dynamics and observation likelihoods. Such generative…

机器学习 · 计算机科学 2024-04-16 Ali Younis , Erik Sudderth

In animal societies as well as in human crowds, many observed collective behaviours result from self-organized processes based on local interactions among individuals. However, models of crowd dynamics are still lacking a systematic…

物理与社会 · 物理学 2009-09-30 Mehdi Moussaid , Dirk Helbing , Simon Garnier , Anders Johansson , Maud Combe , Guy Theraulaz

Lane detection is a crucial perception task for all levels of automated vehicles (AVs) and Advanced Driver Assistance Systems, particularly in mixed-traffic environments where AVs must interact with human-driven vehicles (HDVs) and…

计算机视觉与模式识别 · 计算机科学 2026-02-04 Sandeep Patil , Yongqi Dong , Haneen Farah , Hans Hellendoorn

In this paper, we propose a fast fully convolutional neural network (FCNN) for crowd segmentation. By replacing the fully connected layers in CNN with 1 by 1 convolution kernels, FCNN takes whole images as inputs and directly outputs…

计算机视觉与模式识别 · 计算机科学 2014-11-18 Kai Kang , Xiaogang Wang

A continual learning solution is proposed to address the out-of-distribution generalization problem for pedestrian detection. While recent pedestrian detection models have achieved impressive performance on various datasets, they remain…

计算机视觉与模式识别 · 计算机科学 2023-06-28 Mahdiyar Molahasani , Ali Etemad , Michael Greenspan

Lane detection in driving scenes is an important module for autonomous vehicles and advanced driver assistance systems. In recent years, many sophisticated lane detection methods have been proposed. However, most methods focus on detecting…

计算机视觉与模式识别 · 计算机科学 2020-04-30 Qin Zou , Hanwen Jiang , Qiyu Dai , Yuanhao Yue , Long Chen , Qian Wang

Pedestrian trajectory prediction is a challenging task because of the complexity of real-world human social behaviors and uncertainty of the future motion. For the first issue, existing methods adopt fully connected topology for modeling…

计算机视觉与模式识别 · 计算机科学 2019-07-25 Lidan Zhang , Qi She , Ping Guo

Detection of anomalous trajectories is an important problem with potential applications to various domains, such as video surveillance, risk assessment, vessel monitoring and high-energy physics. Modeling the distribution of trajectories…

Compared to other applications in computer vision, convolutional neural networks have under-performed on pedestrian detection. A breakthrough was made very recently by using sophisticated deep CNN models, with a number of hand-crafted…

计算机视觉与模式识别 · 计算机科学 2016-06-07 Qichang Hu , Peng Wang , Chunhua Shen , Anton van den Hengel , Fatih Porikli

We study the classification of animal behavior using accelerometry data through various recurrent neural network (RNN) models. We evaluate the classification performance and complexity of the considered models, which feature long short-time…

机器学习 · 计算机科学 2021-11-29 Liang Wang , Reza Arablouei , Flavio A. P. Alvarenga , Greg J. Bishop-Hurley

Due to the popularity of the Internet and smart mobile devices, more and more financial transactions and activities have been digitalized. Compared to traditional financial fraud detection strategies using credit-related features, customers…

机器学习 · 计算机科学 2018-08-17 Ruinan Zhang , Fanglan Zheng , Wei Min

This paper presents a deep neural-network-based hierarchical graphical model for individual and group activity recognition in surveillance scenes. Deep networks are used to recognize the actions of individual people in a scene. Next, a…

计算机视觉与模式识别 · 计算机科学 2015-06-16 Zhiwei Deng , Mengyao Zhai , Lei Chen , Yuhao Liu , Srikanth Muralidharan , Mehrsan Javan Roshtkhari , Greg Mori

Human trajectory anomaly detection has become increasingly important across a wide range of applications, including security surveillance and public health. However, existing trajectory anomaly detection methods are primarily focused on…

机器学习 · 计算机科学 2024-11-05 Yueyang Liu , Lance Kennedy , Hossein Amiri , Andreas Züfle

In real-world crowd counting applications, the crowd densities vary greatly in spatial and temporal domains. A detection based counting method will estimate crowds accurately in low density scenes, while its reliability in congested areas…

计算机视觉与模式识别 · 计算机科学 2018-03-08 Jiang Liu , Chenqiang Gao , Deyu Meng , Alexander G. Hauptmann

In this paper we propose ResnetCrowd, a deep residual architecture for simultaneous crowd counting, violent behaviour detection and crowd density level classification. To train and evaluate the proposed multi-objective technique, a new 100…

计算机视觉与模式识别 · 计算机科学 2017-05-31 Mark Marsden , Kevin McGuinness , Suzanne Little , Noel E. O'Connor