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In the last decade, crowd counting and localization attract much attention of researchers due to its wide-spread applications, including crowd monitoring, public safety, space design, etc. Many Convolutional Neural Networks (CNN) are…

Computer Vision and Pattern Recognition · Computer Science 2020-08-05 Qi Wang , Junyu Gao , Wei Lin , Xuelong Li

We address the problem of image-based crowd counting. In particular, we propose a new problem called unlabeled scene-adaptive crowd counting. Given a new target scene, we would like to have a crowd counting model specifically adapted to…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Mahesh Kumar Krishna Reddy , Mrigank Rochan , Yiwei Lu , Yang Wang

Automated counting of people in crowd images is a challenging task. The major difficulty stems from the large diversity in the way people appear in crowds. In fact, features available for crowd discrimination largely depend on the crowd…

Computer Vision and Pattern Recognition · Computer Science 2018-07-27 Deepak Babu Sam , Neeraj N Sajjan , R. Venkatesh Babu

In crowd counting datasets, each person is annotated by a point, which is usually the center of the head. And the task is to estimate the total count in a crowd scene. Most of the state-of-the-art methods are based on density map…

Computer Vision and Pattern Recognition · Computer Science 2019-08-13 Zhiheng Ma , Xing Wei , Xiaopeng Hong , Yihong Gong

This paper investigates the role of global context for crowd counting. Specifically, a pure transformer is used to extract features with global information from overlapping image patches. Inspired by classification, we add a context token…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Guolei Sun , Yun Liu , Thomas Probst , Danda Pani Paudel , Nikola Popovic , Luc Van Gool

We introduce a detection framework for dense crowd counting and eliminate the need for the prevalent density regression paradigm. Typical counting models predict crowd density for an image as opposed to detecting every person. These…

Computer Vision and Pattern Recognition · Computer Science 2020-02-18 Deepak Babu Sam , Skand Vishwanath Peri , Mukuntha Narayanan Sundararaman , Amogh Kamath , R. Venkatesh Babu

Recent crowd counting approaches have achieved excellent performance. However, they are essentially based on fully supervised paradigm and require large number of annotated samples. Obtaining annotations is an expensive and labour-intensive…

Computer Vision and Pattern Recognition · Computer Science 2020-07-09 Vishwanath A. Sindagi , Rajeev Yasarla , Deepak Sam Babu , R. Venkatesh Babu , Vishal M. Patel

Gatherings of thousands to millions of people frequently occur for an enormous variety of events, and automated counting of these high-density crowds is useful for safety, management, and measuring significance of an event. In this work, we…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Greg Olmschenk , Hao Tang , Zhigang Zhu

Crowd counting is a fundamental problem in crowd analysis which is typically accomplished by estimating a crowd density map and summing over the density values. However, this approach suffers from background noise accumulation and loss of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Yasiru Ranasinghe , Nithin Gopalakrishnan Nair , Wele Gedara Chaminda Bandara , Vishal M. Patel

In this paper, the dual-optical attention fusion crowd head point counting model (TAPNet) is proposed to address the problem of the difficulty of accurate counting in complex scenes such as crowd dense occlusion and low light in crowd…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Fei Zhou , Yi Li , Mingqing Zhu

Images and video frames captured by cameras placed throughout smart cities are often transmitted over the network to a server to be processed by deep neural networks for various tasks. Transmission of raw images, i.e., without any form of…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Arian Bakhtiarnia , Błażej Leporowski , Lukas Esterle , Alexandros Iosifidis

Crowd counting is a challenging task due to the issues such as scale variation and perspective variation in real crowd scenes. In this paper, we propose a novel Cascaded Residual Density Network (CRDNet) in a coarse-to-fine approach to…

Computer Vision and Pattern Recognition · Computer Science 2021-07-30 Kun Zhao , Luchuan Song , Bin Liu , Qi Chu , Nenghai Yu

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

Current crowd-counting models often rely on single-modal inputs, such as visual images or wireless signal data, which can result in significant information loss and suboptimal recognition performance. To address these shortcomings, we…

Computer Vision and Pattern Recognition · Computer Science 2025-04-30 Zhe Cui , Yuli Li , Le-Nam Tran

Understanding human behaviour in crowded indoor environments is central to surveillance, smart buildings, and human-robot interaction, yet existing datasets rarely capture real-world indoor complexity at scale. We introduce IndoorCrowd, a…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Sebastian-Ion Nae , Radu Moldoveanu , Alexandra Stefania Ghita , Adina Magda Florea

Generally, crowd datasets can be collected or generated from real or synthetic sources. Real data is generated by using infrastructure-based sensors (such as static cameras or other sensors). The use of simulation tools can significantly…

Computer Vision and Pattern Recognition · Computer Science 2023-04-27 Paweł Foszner , Agnieszka Szczęsna , Luca Ciampi , Nicola Messina , Adam Cygan , Bartosz Bizoń , Michał Cogiel , Dominik Golba , Elżbieta Macioszek , Michał Staniszewski

Research in neural networks in the field of computer vision has achieved remarkable accuracy for point estimation. However, the uncertainty in the estimation is rarely addressed. Uncertainty quantification accompanied by point estimation…

Computer Vision and Pattern Recognition · Computer Science 2020-04-23 Min-hwan Oh , Peder A. Olsen , Karthikeyan Natesan Ramamurthy

The mainstream crowd counting methods usually utilize the convolution neural network (CNN) to regress a density map, requiring point-level annotations. However, annotating each person with a point is an expensive and laborious process.…

Computer Vision and Pattern Recognition · Computer Science 2022-09-09 Dingkang Liang , Xiwu Chen , Wei Xu , Yu Zhou , Xiang Bai

Visible and infrared image fusion (VIF) is an important multimedia task in computer vision. Most VIF methods focus primarily on optimizing fused image quality. Recent studies have begun incorporating downstream tasks, such as semantic…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 He Li , Xinyu Liu , Weihang Kong , Xingchen Zhang

Occlusions, complex backgrounds, scale variations and non-uniform distributions present great challenges for crowd counting in practical applications. In this paper, we propose a novel method using an attention model to exploit head…

Computer Vision and Pattern Recognition · Computer Science 2018-06-28 Youmei Zhang , Chunluan Zhou , Faliang Chang , Alex C. Kot