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Crowd counting is a critical task in computer vision, with several important applications. However, existing counting methods rely on labor-intensive density map annotations, necessitating the manual localization of each individual…

Computer Vision and Pattern Recognition · Computer Science 2023-10-13 Adriano D'Alessandro , Ali Mahdavi-Amiri , Ghassan Hamarneh

Multi-view crowd tracking estimates each person's tracking trajectories on the ground of the scene. Recent research works mainly rely on CNNs-based multi-view crowd tracking architectures, and most of them are evaluated and compared on…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Qi Zhang , Jixuan Chen , Kaiyi Zhang , Xinquan Yu , Antoni B. Chan , Hui Huang

Crowd counting has been widely studied by computer vision community in recent years. Due to the large scale variation, it remains to be a challenging task. Previous methods adopt either multi-column CNN or single-column CNN with multiple…

Computer Vision and Pattern Recognition · Computer Science 2019-06-25 Feng Dai , Hao Liu , Yike Ma , Juan Cao , Qiang Zhao , Yongdong Zhang

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…

Computer Vision and Pattern Recognition · Computer Science 2018-03-08 Jiang Liu , Chenqiang Gao , Deyu Meng , Alexander G. Hauptmann

Dense crowd counting aims to predict thousands of human instances from an image, by calculating integrals of a density map over image pixels. Existing approaches mainly suffer from the extreme density variances. Such density pattern shift…

Computer Vision and Pattern Recognition · Computer Science 2019-08-09 Chenfeng Xu , Kai Qiu , Jianlong Fu , Song Bai , Yongchao Xu , Xiang Bai

We propose a novel crowd counting approach that leverages abundantly available unlabeled crowd imagery in a learning-to-rank framework. To induce a ranking of cropped images , we use the observation that any sub-image of a crowded scene…

Computer Vision and Pattern Recognition · Computer Science 2018-03-09 Xialei Liu , Joost van de Weijer , Andrew D. Bagdanov

Recurrent Neural Networks were, until recently, one of the best ways to capture the timely dependencies in sequences. However, with the introduction of the Transformer, it has been proven that an architecture with only attention-mechanisms…

Machine Learning · Computer Science 2021-08-19 Radostin Cholakov , Todor Kolev

Accurate volumetric image registration is highly relevant for clinical routines and computer-aided medical diagnosis. Recently, researchers have begun to use transformers in learning-based methods for medical image registration, and have…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Ahsan Raza Siyal , Astrid Ellen Grams , Markus Haltmeier

Crowd counting aims to estimate the number of persons in a scene. Most state-of-the-art crowd counting methods based on color images can't work well in poor illumination conditions due to invisible objects. With the widespread use of…

Computer Vision and Pattern Recognition · Computer Science 2023-01-10 Zhengyi Liu , Wei Wu , Yacheng Tan , Guanghui Zhang

While the performance of crowd counting via deep learning has been improved dramatically in the recent years, it remains an ingrained problem due to cluttered backgrounds and varying scales of people within an image. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2020-06-18 Yunqi Miao , Zijia Lin , Guiguang Ding , Jungong Han

Fully-supervised crowd counting is a laborious task due to the large amounts of annotations. Few works focus on weekly-supervised crowd counting, where only the global crowd numbers are available for training. The main challenge of…

Computer Vision and Pattern Recognition · Computer Science 2022-02-23 Xiaoshuang Chen , Hongtao Lu

We develop a Synthetic Fusion Pyramid Network (SPF-Net) with a scale-aware loss function design for accurate crowd counting. Existing crowd-counting methods assume that the training annotation points were accurate and thus ignore the fact…

Computer Vision and Pattern Recognition · Computer Science 2023-01-04 Yi-Kuan Hsieh , Jun-Wei Hsieh , Yu-Chee Tseng , Ming-Ching Chang , Bor-Shiun Wang

We present a method for image-based crowd counting, one that can predict a crowd density map together with the uncertainty values pertaining to the predicted density map. To obtain prediction uncertainty, we model the crowd density values…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Viresh Ranjan , Boyu Wang , Mubarak Shah , Minh Hoai

In the field of crowd counting research, many recent deep learning based methods have demonstrated robust capabilities for accurately estimating crowd sizes. However, the enhancement in their performance often arises from an increase in the…

Computer Vision and Pattern Recognition · Computer Science 2025-09-22 Lei Chen , Xinghang Gao , Fei Chao , Xiang Chang , Chih Min Lin , Xingen Gao , Shaopeng Lin , Hongyi Zhang , Juqiang Lin

Localizing individuals in crowds is more in accordance with the practical demands of subsequent high-level crowd analysis tasks than simply counting. However, existing localization based methods relying on intermediate representations…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Qingyu Song , Changan Wang , Zhengkai Jiang , Yabiao Wang , Ying Tai , Chengjie Wang , Jilin Li , Feiyue Huang , Yang Wu

Although deep convolutional neural networks (CNNs) have achieved great success in computer vision tasks, its real-world application is still impeded by its voracious demand of computational resources. Current works mostly seek to compress…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 Chen Zhao , Bernard Ghanem

Crowd understanding has aroused the widespread interest in vision domain due to its important practical significance. Unfortunately, there is no effort to explore crowd understanding in multi-modal domain that bridges natural language and…

Computer Vision and Pattern Recognition · Computer Science 2022-06-17 Heqian Qiu , Hongliang Li , Taijin Zhao , Lanxiao Wang , Qingbo Wu , Fanman Meng

Crowd counting, i.e., estimation number of the pedestrian in crowd images, is emerging as an important research problem with the public security applications. A key component for the crowd counting systems is the construction of counting…

Computer Vision and Pattern Recognition · Computer Science 2019-02-13 Xingjiao Wu , Yingbin Zheng , Hao Ye , Wenxin Hu , Jing Yang , Liang He

Due to its variety of applications in the real-world, the task of single image-based crowd counting has received a lot of interest in the recent years. Recently, several approaches have been proposed to address various problems encountered…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Vishwanath A. Sindagi , Rajeev Yasarla , Vishal M. Patel

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
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