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Few-shot detection-based counters estimate the number of instances in the image specified only by a few test-time exemplars. A common approach to localize objects across multiple sizes is to merge backbone features of different resolutions.…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Jer Pelhan , Alan Lukezic , Matej Kristan

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

We present UltraZoom, a system for generating gigapixel-resolution images of objects from casually captured inputs, such as handheld phone photos. Given a full-shot image (global, low-detail) and one or more close-ups (local, high-detail),…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Jingwei Ma , Vivek Jayaram , Brian Curless , Ira Kemelmacher-Shlizerman , Steven M. Seitz

Most conventional crowd counting methods utilize a fully-supervised learning framework to establish a mapping between scene images and crowd density maps. They usually rely on a large quantity of costly and time-intensive pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Jiaqi Gao , Zhizhong Huang , Yiming Lei , Hongming Shan , James Z. Wang , Fei-Yue Wang , Junping Zhang

In this article, we propose a simulated crowd counting dataset CrowdX, which has a large scale, accurate labeling, parameterized realization, and high fidelity. The experimental results of using this dataset as data enhancement show that…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Yi Hou , Chengyang Li , Yuheng Lu , Liping Zhu , Yuan Li , Huizhu Jia , Xiaodong Xie

We propose a novel crowd counting model that maps a given crowd scene to its density. Crowd analysis is compounded by myriad of factors like inter-occlusion between people due to extreme crowding, high similarity of appearance between…

Computer Vision and Pattern Recognition · Computer Science 2017-08-04 Deepak Babu Sam , Shiv Surya , R. Venkatesh Babu

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

Crowd simulation is a central topic in several fields including graphics. To achieve high-fidelity simulations, data has been increasingly relied upon for analysis and simulation guidance. However, the information in real-world data is…

Graphics · Computer Science 2020-04-30 Feixiang He , Yuanhang Xiang , Xi Zhao , He Wang

The aim of crowd counting is to estimate the number of people in images by leveraging the annotation of center positions for pedestrians' heads. Promising progresses have been made with the prevalence of deep Convolutional Neural Networks.…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Zhi-Qi Cheng , Jun-Xiu Li , Qi Dai , Xiao Wu , Alexander Hauptmann

Crowd counting is a fundamental yet challenging task, which desires rich information to generate pixel-wise crowd density maps. However, most previous methods only used the limited information of RGB images and cannot well discover…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Lingbo Liu , Jiaqi Chen , Hefeng Wu , Guanbin Li , Chenglong Li , Liang Lin

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

Crowd anomaly detection is one of the most popular topics in computer vision in the context of smart cities. A plethora of deep learning methods have been proposed that generally outperform other machine learning solutions. Our review…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 Md. Haidar Sharif , Lei Jiao , Christian W. Omlin

Crowd counting is an important task in computer vision, which has many applications in video surveillance. Although the regression-based framework has achieved great improvements for crowd counting, how to improve the discriminative power…

Computer Vision and Pattern Recognition · Computer Science 2016-05-02 Biyun Sheng , Chunhua Shen , Guosheng Lin , Jun Li , Wankou Yang , Changyin Sun

Tracking in gigapixel scenarios holds numerous potential applications in video surveillance and pedestrian analysis. Existing algorithms attempt to perform tracking in crowded scenes by utilizing multiple cameras or group relationships.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-29 Yunqi Zhao , Yuchen Guo , Zheng Cao , Kai Ni , Ruqi Huang , Lu Fang

Estimating crowd count in densely crowded scenes is an extremely challenging task due to non-uniform scale variations. In this paper, we propose a novel end-to-end cascaded network of CNNs to jointly learn crowd count classification and…

Computer Vision and Pattern Recognition · Computer Science 2017-08-17 Vishwanath A. Sindagi , Vishal M. Patel

In this paper, we describe our study on how humans allocate their attention during visual crowd counting. Using an eye tracker, we collect gaze behavior of human participants who are tasked with counting the number of people in crowd…

Computer Vision and Pattern Recognition · Computer Science 2020-09-29 Raji Annadi , Yupei Chen , Viresh Ranjan , Dimitris Samaras , Gregory Zelinsky , Minh Hoai

Crowd counting is usually handled in a density map regression fashion, which is supervised via a L2 loss between the predicted density map and ground truth. To effectively regulate models, various improved L2 loss functions have been…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Ziheng Yan , Yuankai Qi , Guorong Li , Xinyan Liu , Weigang Zhang , Qingming Huang , Ming-Hsuan Yang

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

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

We introduce GaussianZoom, a generative zoom-in 3D reconstruction system with an iterative progressive framework that combines geometry-consistent scene modeling and multi-scale semantic reasoning to enable high-fidelity extreme zoom-in…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Jiale Shi , Jiarui Hu , Zesong Yang , Kaixuan Luan , Hujun Bao , Zhaopeng Cui
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