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We present a novel procedural framework to generate an arbitrary number of labeled crowd videos (LCrowdV). The resulting crowd video datasets are used to design accurate algorithms or training models for crowded scene understanding. Our…

Computer Vision and Pattern Recognition · Computer Science 2016-07-05 Ernest Cheung , Tsan Kwong Wong , Aniket Bera , Xiaogang Wang , Dinesh Manocha

The performance of optical flow algorithms greatly depends on the specifics of the content and the application for which it is used. Existing and well established optical flow datasets are limited to rather particular contents from which…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Gregory Schröder , Tobias Senst , Erik Bochinski , Thomas Sikora

Human detection has witnessed impressive progress in recent years. However, the occlusion issue of detecting human in highly crowded environments is far from solved. To make matters worse, crowd scenarios are still under-represented in…

Computer Vision and Pattern Recognition · Computer Science 2018-05-02 Shuai Shao , Zijian Zhao , Boxun Li , Tete Xiao , Gang Yu , Xiangyu Zhang , Jian Sun

Crowd image is arguably one of the most laborious data to annotate. In this paper, we devote to reduce the massive demand of densely labeled crowd data, and propose a novel weakly-supervised setting, in which we leverage the binary ranking…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Zheng Xiong , Liangyu Chai , Wenxi Liu , Yongtuo Liu , Sucheng Ren , Shengfeng He

In emergency management for mass gathering, the knowledge about crowd types can highly assist with providing timely response and effective resource allocation. Crowd monitoring can be achieved using computer vision based approaches and…

Computers and Society · Computer Science 2016-06-03 Minh Quan Ngo , Pari Delir Haghighi , Frada Burstein

In this paper, we present a data-driven approach to generate realistic steering behaviors for virtual crowds in crowd simulation. We take advantage of both rule-based models and data-driven models by applying the interaction patterns…

Graphics · Computer Science 2015-10-30 Mingbi Zhao

Crowd management is a complex, challenging and crucial task. Lack of appropriate management of crowd has, in past, led to many unfortunate stampedes with significant loss of life. To increase the crowd management efficiency, we deploy…

Multiagent Systems · Computer Science 2015-03-03 Garima Ahuja , Kamalakar Karlapalem

Perspective distortions and crowd variations make crowd counting a challenging task in computer vision. To tackle it, many previous works have used multi-scale architecture in deep neural networks (DNNs). Multi-scale branches can be either…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Zhipeng Du , Miaojing Shi , Jiankang Deng , Stefanos Zafeiriou

Automatic crowd counting using density estimation has gained significant attention in computer vision research. As a result, a large number of crowd counting and density estimation models using convolution neural networks (CNN) have been…

Computer Vision and Pattern Recognition · Computer Science 2023-02-13 Muhammad Asif Khan , Hamid Menouar , Ridha Hamila

Human crowds exhibit a wide range of interesting patterns, and measuring them is of great interest in areas ranging from psychology and social science to civil engineering. While \textit{in situ} measurements of human crowd patterns require…

Adaptation and Self-Organizing Systems · Physics 2023-12-29 Zexu Li , Lei Fang

Human pose estimation has recently made significant progress with the adoption of deep convolutional neural networks. Its many applications have attracted tremendous interest in recent years. However, many practical applications require…

Computer Vision and Pattern Recognition · Computer Science 2019-07-17 Thomas Golda , Tobias Kalb , Arne Schumann , Jürgen Beyerer

We demonstrate that it is possible to perform face-related computer vision in the wild using synthetic data alone. The community has long enjoyed the benefits of synthesizing training data with graphics, but the domain gap between real and…

Computer Vision and Pattern Recognition · Computer Science 2021-10-06 Erroll Wood , Tadas Baltrušaitis , Charlie Hewitt , Sebastian Dziadzio , Matthew Johnson , Virginia Estellers , Thomas J. Cashman , Jamie Shotton

Since the past few decades, human trajectory forecasting has been a field of active research owing to its numerous real-world applications: evacuation situation analysis, deployment of intelligent transport systems, traffic operations, to…

Computer Vision and Pattern Recognition · Computer Science 2021-01-12 Parth Kothari , Sven Kreiss , Alexandre Alahi

Full body trackers are utilized for surveillance and security purposes, such as person-tracking robots. In the Middle East, uniform crowd environments are the norm which challenges state-of-the-art trackers. Despite tremendous improvements…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Zhibo Zhang , Omar Alremeithi , Maryam Almheiri , Marwa Albeshr , Xiaoxiong Zhang , Sajid Javed , Naoufel Werghi

Accurate people counting in smart buildings and intelligent transportation systems is crucial for energy management, safety protocols, and resource allocation. This is especially critical during emergencies, where precise occupant counts…

Computer Vision and Pattern Recognition · Computer Science 2024-11-18 Ishrath Ahamed , Chamith Dilshan Ranathunga , Dinuka Sandun Udayantha , Benny Kai Kiat Ng , Chau Yuen

Multi-modal crowd counting is a crucial task that uses multi-modal cues to estimate the number of people in crowded scenes. To overcome the gap between different modalities, we propose a modal emulation-based two-pass multi-modal…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Chenhao Wang , Xiaopeng Hong , Zhiheng Ma , Yupeng Wei , Yabin Wang , Xiaopeng Fan

Person re-identification (re-ID) has gained more and more attention due to its widespread applications in intelligent video surveillance. Unfortunately, the mainstream deep learning methods still need a large quantity of labeled data to…

Computer Vision and Pattern Recognition · Computer Science 2021-10-27 Qi Wang , Sikai Bai , Junyu Gao , Yuan Yuan , Xuelong Li

In recent years, anomaly events detection in crowd scenes attracts many researchers' attention, because of its importance to public safety. Existing methods usually exploit visual information to analyze whether any abnormal events have…

Computer Vision and Pattern Recognition · Computer Science 2021-10-29 Junyu Gao , Maoguo Gong , Xuelong Li

In recent years, person detection and human pose estimation have made great strides, helped by large-scale labeled datasets. However, these datasets had no guarantees or analysis of human activities, poses, or context diversity.…

Computer Vision and Pattern Recognition · Computer Science 2022-07-13 Salehe Erfanian Ebadi , You-Cyuan Jhang , Alex Zook , Saurav Dhakad , Adam Crespi , Pete Parisi , Steven Borkman , Jonathan Hogins , Sujoy Ganguly

Understanding crowd behavior in video is challenging for computer vision. There have been increasing attempts on modeling crowded scenes by introducing ever larger property ontologies (attributes) and annotating ever larger training…

Computer Vision and Pattern Recognition · Computer Science 2019-08-19 Xun Xu , Shaogang Gong , Timothy Hospedales