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Counting people in dense crowds is a demanding task even for humans. This is primarily due to the large variability in appearance of people. Often people are only seen as a bunch of blobs. Occlusions, pose variations and background clutter…

计算机视觉与模式识别 · 计算机科学 2018-07-30 Deepak Babu Sam , R. Venkatesh Babu

Because of the powerful learning capability of deep neural networks, counting performance via density map estimation has improved significantly during the past several years. However, it is still very challenging due to severe occlusion,…

计算机视觉与模式识别 · 计算机科学 2018-09-21 Di Kang , Antoni Chan

For crowded scenes, the accuracy of object-based computer vision methods declines when the images are low-resolution and objects have severe occlusions. Taking counting methods for example, almost all the recent state-of-the-art counting…

计算机视觉与模式识别 · 计算机科学 2018-06-14 Di Kang , Zheng Ma , Antoni B. Chan

State-of-the-art methods for counting people in crowded scenes rely on deep networks to estimate crowd density. They typically use the same filters over the whole image or over large image patches. Only then do they estimate local scale to…

计算机视觉与模式识别 · 计算机科学 2019-04-16 Weizhe Liu , Mathieu Salzmann , Pascal Fua

Crowd counting is a challenging yet critical task in computer vision with applications ranging from public safety to urban planning. Recent advances using Convolutional Neural Networks (CNNs) that estimate density maps have shown…

计算机视觉与模式识别 · 计算机科学 2025-07-10 Abhinav Sagar

Computer vision tasks often have side information available that is helpful to solve the task. For example, for crowd counting, the camera perspective (e.g., camera angle and height) gives a clue about the appearance and scale of people in…

计算机视觉与模式识别 · 计算机科学 2016-11-22 Di Kang , Debarun Dhar , Antoni B. Chan

In this paper, we propose a novel perspective-guided convolution (PGC) for convolutional neural network (CNN) based crowd counting (i.e. PGCNet), which aims to overcome the dramatic intra-scene scale variations of people due to the…

计算机视觉与模式识别 · 计算机科学 2019-09-17 Zhaoyi Yan , Yuchen Yuan , Wangmeng Zuo , Xiao Tan , Yezhen Wang , Shilei Wen , Errui Ding

Crowd counting, which is a key computer vision task, has emerged as a fundamental technology in crowd analysis and public safety management. However, challenges such as scale variations and complex backgrounds significantly impact the…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Peng Liu , Heng-Chao Li , Sen Lei , Nanqing Liu , Bin Feng , Xiao Wu

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…

计算机视觉与模式识别 · 计算机科学 2025-04-30 Zhe Cui , Yuli Li , Le-Nam Tran

This paper focuses on the challenging crowd counting task. As large-scale variations often exist within crowd images, neither fixed-size convolution kernel of CNN nor fixed-size attention of recent vision transformers can well handle this…

计算机视觉与模式识别 · 计算机科学 2022-03-08 Hui Lin , Zhiheng Ma , Rongrong Ji , Yaowei Wang , Xiaopeng Hong

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…

计算机视觉与模式识别 · 计算机科学 2018-07-27 Deepak Babu Sam , Neeraj N Sajjan , R. Venkatesh Babu

The estimation of crowd count in images has a wide range of applications such as video surveillance, traffic monitoring, public safety and urban planning. Recently, the convolutional neural network (CNN) based approaches have been shown to…

计算机视觉与模式识别 · 计算机科学 2018-05-16 Xinghao Ding , Zhirui Lin , Fujin He , Yu Wang , Yue Huang

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…

计算机视觉与模式识别 · 计算机科学 2019-07-19 Yanyan Fang , Biyun Zhan , Wandi Cai , Shenghua Gao , Bo Hu

Computer vision techniques have been used to produce accurate and generic crowd count estimators in recent years. Due to severe occlusions, appearance variations, perspective distortions and illumination conditions, crowd counting is a very…

计算机视觉与模式识别 · 计算机科学 2017-10-27 Haiyan Yao , Kang Han , Wanggen Wan , Li Hou

Existing state-of-the-art crowd counting algorithms rely excessively on location-level annotations, which are burdensome to acquire. When only count-level (weak) supervisory signals are available, it is arduous and error-prone to regress…

计算机视觉与模式识别 · 计算机科学 2022-03-17 Mingjie Wang , Jun Zhou , Hao Cai , Minglun Gong

Our work proposes a novel deep learning framework for estimating crowd density from static images of highly dense crowds. We use a combination of deep and shallow, fully convolutional networks to predict the density map for a given crowd…

计算机视觉与模式识别 · 计算机科学 2016-08-23 Lokesh Boominathan , Srinivas S S Kruthiventi , R. Venkatesh Babu

Crowd counting from unconstrained scene images is a crucial task in many real-world applications like urban surveillance and management, but it is greatly challenged by the camera's perspective that causes huge appearance variations in…

计算机视觉与模式识别 · 计算机科学 2018-07-03 Lingbo Liu , Hongjun Wang , Guanbin Li , Wanli Ouyang , Liang Lin

Crowd counting is one of the core tasks in various surveillance applications. A practical system involves estimating accurate head counts in dynamic scenarios under different lightning, camera perspective and occlusion states. Previous…

计算机视觉与模式识别 · 计算机科学 2018-06-27 Li Wang , Weiyuan Shao , Yao Lu , Hao Ye , Jian Pu , Yingbin Zheng

Recently the crowd counting has received more and more attention. Especially the technology of high-density environment has become an important research content, and the relevant methods for the existence of extremely dense crowd are not…

计算机视觉与模式识别 · 计算机科学 2021-05-25 Mengxiao Tian , Hao Guo , Chengjiang Long

Crowd counting aims to count the number of instantaneous people in a crowded space, and many promising solutions have been proposed for single image crowd counting. With the ubiquitous video capture devices in public safety field, how to…

计算机视觉与模式识别 · 计算机科学 2022-02-15 Xingjiao Wu , Baohan Xu , Yingbin Zheng , Hao Ye , Jing Yang , Liang He