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Previous work generally believes that improving the spatial invariance of convolutional networks is the key to object counting. However, after verifying several mainstream counting networks, we surprisingly found too strict pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2022-08-19 Zhi-Qi Cheng , Qi Dai , Hong Li , JingKuan Song , Xiao Wu , Alexander G. Hauptmann

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

This study enhances a crowd density estimation algorithm originally designed for image-based analysis by adapting it for video-based scenarios. The proposed method integrates a denoising probabilistic model that utilizes diffusion processes…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Balachandra Devarangadi Sunil , Rakshith Venkatesh , Shantanu Todmal

Dense crowd counting is a challenging task that demands millions of head annotations for training models. Though existing self-supervised approaches could learn good representations, they require some labeled data to map these features to…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 Deepak Babu Sam , Abhinav Agarwalla , Jimmy Joseph , Vishwanath A. Sindagi , R. Venkatesh Babu , Vishal M. Patel

In this work, we propose a novel crowd counting network that progressively generates crowd density maps via residual error estimation. The proposed method uses VGG16 as the backbone network and employs density map generated by the final…

Computer Vision and Pattern Recognition · Computer Science 2019-10-29 Vishwanath A. Sindagi , Rajeev Yasarla , Vishal M. Patel

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

Crowd management is of paramount importance when it comes to preventing stampedes and saving lives, especially in a countries like China and India where the combined population is a third of the global population. Millions of people convene…

Computer Vision and Pattern Recognition · Computer Science 2019-04-01 Varun Kannadi Valloli , Kinal Mehta

This paper proposes a DNN-based system that detects multiple people from a single depth image. Our neural network processes a depth image and outputs a likelihood map in image coordinates, where each detection corresponds to a…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 David Fuentes-Jimenez , Cristina Losada-Gutierrez , David Casillas-Perez , Javier Macias-Guarasa , Roberto Martin-Lopez , Daniel Pizarro , Carlos A. Luna

In this paper we propose ResnetCrowd, a deep residual architecture for simultaneous crowd counting, violent behaviour detection and crowd density level classification. To train and evaluate the proposed multi-objective technique, a new 100…

Computer Vision and Pattern Recognition · Computer Science 2017-05-31 Mark Marsden , Kevin McGuinness , Suzanne Little , Noel E. O'Connor

Crowding is a visual effect suffered by humans, in which an object that can be recognized in isolation can no longer be recognized when other objects, called flankers, are placed close to it. In this work, we study the effect of crowding in…

Computer Vision and Pattern Recognition · Computer Science 2017-06-28 Anna Volokitin , Gemma Roig , Tomaso Poggio

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

Crowd counting has recently attracted increasing interest in computer vision but remains a challenging problem. In this paper, we propose a trellis encoder-decoder network (TEDnet) for crowd counting, which focuses on generating…

Computer Vision and Pattern Recognition · Computer Science 2019-04-22 Xiaolong Jiang , Zehao Xiao , Baochang Zhang , Xiantong Zhen , Xianbin Cao , David Doermann , Ling Shao

We propose a Multi-Task Learning (MTL) paradigm based deep neural network architecture, called MTCNet (Multi-Task Crowd Network) for crowd density and count estimation. Crowd count estimation is challenging due to the non-uniform scale…

Machine Learning · Computer Science 2025-04-16 Abhay Kumar , Nishant Jain , Suraj Tripathi , Chirag Singh , Kamal Krishna

An understanding of pedestrian dynamics is indispensable for numerous urban applications including the design of transportation networks and planing for business development. Pedestrian counting often requires utilizing manual or technical…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Eric K. Tokuda , Yitzchak Lockerman , Gabriel B. A. Ferreira , Ethan Sorrelgreen , David Boyle , Roberto M. Cesar-Jr. , Claudio T. Silva

Traditional crowd counting networks suffer from information loss when feature maps are downsized through pooling layers, leading to inaccuracies in counting crowds at a distance. Existing methods often assume correct annotations during…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Yi-Kuan Hsieh , Jun-Wei Hsieh , Yu-Chee Tseng , Ming-Ching Chang , Li Xin

Crowd counting in still images is a challenging problem in practice due to huge crowd-density variations, large perspective changes, severe occlusion, and variable lighting conditions. The state-of-the-art patch rescaling module (PRM) based…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Usman Sajid , Wenchi Ma , Guanghui Wang

Crowd scenes captured by cameras at different locations vary greatly, and existing crowd models have limited generalization for unseen surveillance scenes. To improve the generalization of the model, we regard different surveillance scenes…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Jiwei Chen , Qi Wang , Junyu Gao , Jing Zhang , Dingyi Li , Jing-Jia Luo

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

In recent years, crowd counting has become an important issue in computer vision. In most methods, the density maps are generated by convolving with a Gaussian kernel from the ground-truth dot maps which are marked around the center of…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Xin Zhong , Zhaoyi Yan , Jing Qin , Wangmeng Zuo , Weigang Lu

Video surveillance using drones is both convenient and efficient due to the ease of deployment and unobstructed movement of drones in many scenarios. An interesting application of drone-based video surveillance is to estimate crowd…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Muhammad Asif Khan , Hamid Menouar , Ridha Hamila