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Region of Interest (ROI) crowd counting can be formulated as a regression problem of learning a mapping from an image or a video frame to a crowd density map. Recently, convolutional neural network (CNN) models have achieved promising…

Computer Vision and Pattern Recognition · Computer Science 2017-07-26 Feng Xiong , Xingjian Shi , Dit-Yan Yeung

Our research is focused on two main applications of crowd scene analysis crowd counting and anomaly detection In recent years a large number of researches have been presented in the domain of crowd counting We addressed two main challenges…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Muhammad Junaid Asif

Crowd scene analysis has received a lot of attention recently due to the wide variety of applications, for instance, forensic science, urban planning, surveillance and security. In this context, a challenging task is known as crowd…

Computer Vision and Pattern Recognition · Computer Science 2020-03-13 Rodolfo Quispe , Darwin Ttito , Adín Ramírez Rivera , Helio Pedrini

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 propose an attention-injective deformable convolutional network called ADCrowdNet for crowd understanding that can address the accuracy degradation problem of highly congested noisy scenes. ADCrowdNet contains two concatenated networks.…

Computer Vision and Pattern Recognition · Computer Science 2019-04-12 Ning Liu , Yongchao Long , Changqing Zou , Qun Niu , Li Pan , Hefeng Wu

Multi-view crowd counting has been proposed to deal with the severe occlusion issue of crowd counting in large and wide scenes. However, due to the difficulty of collecting and annotating multi-view images, the datasets for multi-view…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Qi Zhang , Yunfei Gong , Zhidan Xie , Zhizi Wang , Antoni B. Chan , Hui Huang

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

Crowd counting problem that counts the number of people in an image has been extensively studied in recent years. In this paper, we introduce a new variant of crowd counting problem, namely "Categorized Crowd Counting", that counts the…

Computer Vision and Pattern Recognition · Computer Science 2019-12-13 Sarkar Snigdha Sarathi Das , Syed Md. Mukit Rashid , Mohammed Eunus Ali

Convolutional Neural Networks have made their mark in various fields of computer vision in recent years. They have achieved state-of-the-art performance in the field of document analysis as well. However, CNNs require a large amount of…

Computer Vision and Pattern Recognition · Computer Science 2018-01-29 Neha Gurjar , Sebastian Sudholt , Gernot A. Fink

With multiple crowd gatherings of millions of people every year in events ranging from pilgrimages to protests, concerts to marathons, and festivals to funerals; visual crowd analysis is emerging as a new frontier in computer vision. In…

Computer Vision and Pattern Recognition · Computer Science 2018-08-06 Haroon Idrees , Muhmmad Tayyab , Kishan Athrey , Dong Zhang , Somaya Al-Maadeed , Nasir Rajpoot , Mubarak Shah

Crowd counting is an effective tool for situational awareness in public places. Automated crowd counting using images and videos is an interesting yet challenging problem that has gained significant attention in computer vision. Over the…

Computer Vision and Pattern Recognition · Computer Science 2022-09-16 Muhammad Asif Khan , Hamid Menouar , Ridha Hamila

Crowd counting in single-view images has achieved outstanding performance on existing counting datasets. However, single-view counting is not applicable to large and wide scenes (e.g., public parks, long subway platforms, or event spaces)…

Computer Vision and Pattern Recognition · Computer Science 2022-05-03 Qi Zhang , Antoni B. Chan

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

In this paper, we consider the problem of crowd counting in images. Given an image of a crowded scene, our goal is to estimate the density map of this image, where each pixel value in the density map corresponds to the crowd density at the…

Computer Vision and Pattern Recognition · Computer Science 2019-03-07 Mohammad Asiful Hossain , Mehrdad Hosseinzadeh , Omit Chanda , Yang Wang

Weak gravitational lensing is a powerful probe of the universe's growth history. While traditional two-point statistics capture only the Gaussian features of the convergence field, deep learning methods such as convolutional neural networks…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-09 Jash Kakadia , Shubh Agrawal , Kunhao Zhong , Bhuvnesh Jain

Humans can often count unfamiliar objects by observing visual repetition and composition, rather than relying only on object categories. However, many exemplar-free counting models struggle in such situations and may overcount when objects…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Md Tanvir Hossain , Akif Islam , Mohd Ruhul Ameen

In this paper, we propose a novel self-training approach named Crowd-SDNet that enables a typical object detector trained only with point-level annotations (i.e., objects are labeled with points) to estimate both the center points and sizes…

Computer Vision and Pattern Recognition · Computer Science 2021-02-19 Yi Wang , Junhui Hou , Xinyu Hou , Lap-Pui Chau

Background noise and scale variation are common problems that have been long recognized in crowd counting. Humans glance at a crowd image and instantly know the approximate number of human and where they are through attention the crowd…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Yuehai Chen , Jing Yang , Dong Zhang , Kun Zhang , Badong Chen , Shaoyi Du

Vision transformers have become popular as a possible substitute to convolutional neural networks (CNNs) for a variety of computer vision applications. These transformers, with their ability to focus on global relationships in images, offer…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Asifullah Khan , Zunaira Rauf , Anabia Sohail , Abdul Rehman , Hifsa Asif , Aqsa Asif , Umair Farooq

Simulation is a powerful tool to easily generate annotated data, and a highly desirable feature, especially in those domains where learning models need large training datasets. Machine learning and deep learning solutions, have proven to be…

Computer Vision and Pattern Recognition · Computer Science 2023-12-06 Niccolò Bisagno , Nicola Garau , Antonio Luigi Stefani , Nicola Conci