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Recently multi-view crowd counting using deep neural networks has been proposed to enable counting in large and wide scenes using multiple cameras. The current methods project the camera-view features to the average-height plane of the 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Qi Zhang , Antoni B. Chan

We present results from several projects aimed at enabling the real-time understanding of crowds and their behaviour in the built environment. We make use of CCTV video cameras that are ubiquitous throughout the developed and developing…

Computer Vision and Pattern Recognition · Computer Science 2019-04-24 Karthik Nandakumar , Sebastien Blandin , Laura Wynter

Modern crowd counting methods usually employ deep neural networks (DNN) to estimate crowd counts via density regression. Despite their significant improvements, the regression-based methods are incapable of providing the detection of…

Computer Vision and Pattern Recognition · Computer Science 2019-04-04 Yuting Liu , Miaojing Shi , Qijun Zhao , Xiaofang Wang

Understanding collective pedestrian movement is crucial for applications in crowd management, autonomous navigation, and human-robot interaction. This paper investigates the use of sequential deep learning models, including Recurrent Neural…

Machine Learning · Computer Science 2025-08-12 Amartaivan Sanjjamts , Hiroshi Morita , Togootogtokh Enkhtogtokh

We conducted a simple experiment in which one pedestrian passed through a crowded area and measured the body-rotational angular velocity with commercial tablets. Then, we developed a new method for predicting crowd density by applying the…

Physics and Society · Physics 2019-03-20 Koki Nagao , Daichi Yanagisawa , Katsuhiro Nishinari

The two main data categories of vehicular traffic flow, stationary detector data and floating-car data, are also available for many Marathons and other mass-sports events: Loop detectors and other stationary data sources find their…

Physics and Society · Physics 2016-10-12 Martin Treiber

Growing apprehensions surrounding public safety have captured the attention of numerous governments and security agencies across the globe. These entities are increasingly acknowledging the imperative need for reliable and secure…

Human-Computer Interaction · Computer Science 2023-08-09 Mohammed Ameen , Richard Stone

Forecasting human trajectories is critical for tasks such as robot crowd navigation and autonomous driving. Modeling social interactions is of great importance for accurate group-wise motion prediction. However, most existing methods do not…

Computer Vision and Pattern Recognition · Computer Science 2020-05-06 Yuying Chen , Congcong Liu , Bertram Shi , Ming Liu

This paper proposes a novel approach for crowd counting in low to high density scenarios in static images. Current approaches cannot handle huge crowd diversity well and thus perform poorly in extreme cases, where the crowd density in…

Computer Vision and Pattern Recognition · Computer Science 2020-02-28 Usman Sajid , Hasan Sajid , Hongcheng Wang , Guanghui Wang

Current crowd counting algorithms are only concerned about the number of people in an image, which lacks low-level fine-grained information of the crowd. For many practical applications, the total number of people in an image is not as…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Jia Wan , Nikil Senthil Kumar , Antoni B. Chan

This paper presents a new approach to crowd behaviour anomaly detection that uses a set of efficiently computed, easily interpretable, scene-level holistic features. This low-dimensional descriptor combines two features from the literature:…

Computer Vision and Pattern Recognition · Computer Science 2016-06-17 M. Marsden , K. McGuinness , S. Little , N. E. O'Connor

Swarms of drones are being more and more used in many practical scenarios, such as surveillance, environmental monitoring, search and rescue in hardly-accessible areas, etc.. While a single drone can be guided by a human operator, the…

Computer Vision and Pattern Recognition · Computer Science 2021-07-02 Claudio Piciarelli , Gian Luca Foresti

Crowd management technologies that leverage computer vision are widespread in contemporary times. There exists many security-related applications of these methods, including, but not limited to: following the flow of an array of people and…

Computer Vision and Pattern Recognition · Computer Science 2020-08-18 Soufien Hamrouni , Hakim Ghazzai , Hamid Menouar , Yahya Massoud

This paper addresses the problem of head detection in crowded environments. Our detection is based entirely on the geometric consistency across cameras with overlapping fields of view, and no additional learning process is required. We…

Computer Vision and Pattern Recognition · Computer Science 2018-08-03 Nicola Pellicanò , Emanuel Aldea , Sylvie Le Hégarat-Mascle

Crowd counting is the task of estimating people numbers in crowd images. Modern crowd counting methods employ deep neural networks to estimate crowd counts via crowd density regressions. A major challenge of this task lies in the…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Miaojing Shi , Zhaohui Yang , Chao Xu , Qijun Chen

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…

Computer Vision and Pattern Recognition · Computer Science 2017-05-31 Mark Marsden , Kevin McGuinness , Suzanne Little , Noel E. O'Connor

Crowd counting from a single image is a challenging task due to high appearance similarity, perspective changes and severe congestion. Many methods only focus on the local appearance features and they cannot handle the aforementioned…

Computer Vision and Pattern Recognition · Computer Science 2019-05-27 Junyu Gao , Qi Wang , Xuelong Li

Single image crowd counting is a challenging computer vision problem with wide applications in public safety, city planning, traffic management, etc. With the recent development of deep learning techniques, crowd counting has aroused much…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Haoyue Bai , Jiageng Mao , S. -H. Gary Chan

Recently, the research of wireless sensing has achieved more intelligent results, and the intelligent sensing of human location and activity can be realized by means of WiFi devices. However, most of the current human environment perception…

Machine Learning · Computer Science 2019-03-14 Shangqing Liu , Yanchao Zhao , Fanggang Xue , Bing Chen , Xiang Chen

In this paper, we propose a novel self-training approach named Crowd-SDNet that enables a typical object detector trained only with point-level annotations (i.e., objects are labeled with points) to estimate both the center points and sizes…

Computer Vision and Pattern Recognition · Computer Science 2021-02-19 Yi Wang , Junhui Hou , Xinyu Hou , Lap-Pui Chau