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Multi-modal crowd counting involves estimating crowd density from both visual and thermal/depth images. This task is challenging due to the significant gap between these distinct modalities. In this paper, we propose a novel approach by…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Haoliang Meng , Xiaopeng Hong , Chenhao Wang , Miao Shang , Wangmeng Zuo

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…

Computer Vision and Pattern Recognition · Computer Science 2014-11-18 Kai Kang , Xiaogang Wang

Existing Multi-view Clustering (MVC) methods based on subspace learning focus on consensus representation learning while neglecting the inherent topological structure of data. Despite the integration of Graph Neural Networks (GNNs) into…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Chenping Pei , Fadi Dornaika , Jingjun Bi

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

Estimating count and density maps from crowd images has a wide range of applications such as video surveillance, traffic monitoring, public safety and urban planning. In addition, techniques developed for crowd counting can be applied to…

Computer Vision and Pattern Recognition · Computer Science 2017-07-20 Vishwanath A. Sindagi , Vishal M. Patel

To alleviate the heavy annotation burden for training a reliable crowd counting model and thus make the model more practicable and accurate by being able to benefit from more data, this paper presents a new semi-supervised method based on…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Yifei Qian , Xiaopeng Hong , Zhongliang Guo , Ognjen Arandjelović , Carl R. Donovan

In this paper, we explore a strong baseline for crowd counting and an unsupervised people localization algorithm based on estimated density maps. Firstly, existing methods achieve state-of-the-art performance based on different backbones…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Liangzi Rong , Chunping Li

Accurately estimating the number of objects in a single image is a challenging yet meaningful task and has been applied in many applications such as urban planning and public safety. In the various object counting tasks, crowd counting is…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Guangshuai Gao , Junyu Gao , Qingjie Liu , Qi Wang , Yunhong Wang

In this paper, we present mmFlux: a novel framework for extracting underlying crowd motion patterns and inferring crowd semantics using mmWave radar. First, our proposed signal processing pipeline combines optical flow estimation concepts…

Signal Processing · Electrical Eng. & Systems 2025-09-01 Anurag Pallaprolu , Winston Hurst , Yasamin Mostofi

Federated Learning (FL) presents an innovative approach to privacy-preserving distributed machine learning and enables efficient crowd intelligence on a large scale. However, a significant challenge arises when coordinating FL with crowd…

Distributed, Parallel, and Cluster Computing · Computer Science 2023-09-06 Yuhao Zhou , Minjia Shi , Yuxin Tian , Yuanxi Li , Qing Ye , Jiancheng Lv

Infrared and visible image fusion has emerged as a prominent research area in computer vision. However, little attention has been paid to the fusion task in complex scenes, leading to sub-optimal results under interference. To fill this…

Computer Vision and Pattern Recognition · Computer Science 2025-10-29 Xilai Li , Xiaosong Li , Tianshu Tan , Huafeng Li , Tao Ye

Counting and tracking dense crowds in large-scale scenes is a highly practical yet challenging problem. Existing methods mostly rely on fixed-camera datasets with limited scene coverage, making them inadequate for crowd analysis in…

Computer Vision and Pattern Recognition · Computer Science 2026-05-29 Yaowu Fan , Jia Wan , Tao Han , Andy J. Ma , Wanli Ouyang , Antoni B. Chan

We seek to improve crowd counting as we perceive limits of currently prevalent density map estimation approach on both prediction accuracy and time efficiency. We leverage multilevel pixelation of density map as it helps improve SNR of…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Zhuojun Chen , Junhao Cheng , Yuchen Yuan , Dongping Liao , Yizhou Li , Jiancheng Lv

Deep learning-based image fusion approaches have obtained wide attention in recent years, achieving promising performance in terms of visual perception. However, the fusion module in the current deep learning-based methods suffers from two…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Dongyu Rao , Xiao-Jun Wu , Tianyang Xu , Guoyang Chen

In this paper, we focus on the crowd localization task, a crucial topic of crowd analysis. Most regression-based methods utilize convolution neural networks (CNN) to regress a density map, which can not accurately locate the instance in the…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Dingkang Liang , Wei Xu , Yingying Zhu , Yu Zhou

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

In recent years, with the progress of deep learning technologies, crowd counting has been rapidly developed. In this work, we propose a simple yet effective crowd counting framework that is able to achieve the state-of-the-art performance…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Yue Gu , Wenxi Liu

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 counting is critical for numerous video surveillance scenarios. One of the main issues in this task is how to handle the dramatic scale variations of pedestrians caused by the perspective effect. To address this issue, this paper…

Computer Vision and Pattern Recognition · Computer Science 2021-07-09 Zhaoyi Yan , Ruimao Zhang , Hongzhi Zhang , Qingfu Zhang , Wangmeng Zuo

Compared with single image based crowd counting, video provides the spatial-temporal information of the crowd that would help improve the robustness of crowd counting. But translation, rotation and scaling of people lead to the change of…

Computer Vision and Pattern Recognition · Computer Science 2019-07-19 Yanyan Fang , Biyun Zhan , Wandi Cai , Shenghua Gao , Bo Hu