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Crowd counting from a single image is a challenging task due to high appearance similarity, perspective changes and severe congestion. Many methods only focus on the local appearance features and they cannot handle the aforementioned…

计算机视觉与模式识别 · 计算机科学 2019-05-27 Junyu Gao , Qi Wang , Xuelong Li

Automatic estimation of the number of people in unconstrained crowded scenes is a challenging task and one major difficulty stems from the huge scale variation of people. In this paper, we propose a novel Deep Structured Scale Integration…

计算机视觉与模式识别 · 计算机科学 2019-08-26 Lingbo Liu , Zhilin Qiu , Guanbin Li , Shufan Liu , Wanli Ouyang , Liang Lin

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…

计算机视觉与模式识别 · 计算机科学 2022-12-09 Ziheng Yan , Yuankai Qi , Guorong Li , Xinyan Liu , Weigang Zhang , Qingming Huang , Ming-Hsuan Yang

Compared with the generic scenes, crowded scenes contain highly-overlapped instances, which result in: 1) more ambiguous anchors during training of object detectors, and 2) more predictions are likely to be mistakenly suppressed in…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Chenyang Zhao , Jia Wan , Antoni B. Chan

Crowd estimation is a very challenging problem. The most recent study tries to exploit auditory information to aid the visual models, however, the performance is limited due to the lack of an effective approach for feature extraction and…

计算机视觉与模式识别 · 计算机科学 2021-09-07 Usman Sajid , Xiangyu Chen , Hasan Sajid , Taejoon Kim , Guanghui Wang

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…

计算机视觉与模式识别 · 计算机科学 2021-02-19 Yi Wang , Junhui Hou , Xinyu Hou , Lap-Pui Chau

Video Individual Counting (VIC) has received increasing attention for its importance in intelligent video surveillance. Existing works are limited in two aspects, i.e., dataset and method. Previous datasets are captured with fixed or rarely…

计算机视觉与模式识别 · 计算机科学 2025-07-15 Yaowu Fan , Jia Wan , Tao Han , Antoni B. Chan , Andy J. Ma

Crowd counting presents enormous challenges in the form of large variation in scales within images and across the dataset. These issues are further exacerbated in highly congested scenes. Approaches based on straightforward fusion of…

计算机视觉与模式识别 · 计算机科学 2019-08-30 Vishwanath A Sindagi , Vishal M. Patel

This paper presents a new approach to crowd behaviour anomaly detection that uses a set of efficiently computed, easily interpretable, scene-level holistic features. This low-dimensional descriptor combines two features from the literature:…

计算机视觉与模式识别 · 计算机科学 2016-06-17 M. Marsden , K. McGuinness , S. Little , N. E. O'Connor

Crowd counting has been widely studied by computer vision community in recent years. Due to the large scale variation, it remains to be a challenging task. Previous methods adopt either multi-column CNN or single-column CNN with multiple…

计算机视觉与模式识别 · 计算机科学 2019-06-25 Feng Dai , Hao Liu , Yike Ma , Juan Cao , Qiang Zhao , Yongdong Zhang

Nowadays, massive urban human mobility data are being generated from mobile phones, car navigation systems, and traffic sensors. Predicting the density and flow of the crowd or traffic at a citywide level becomes possible by using the big…

机器学习 · 计算机科学 2019-11-19 Renhe Jiang , Zekun Cai , Zhaonan Wang , Chuang Yang , Zipei Fan , Xuan Song , Kota Tsubouchi , Ryosuke Shibasaki

Understanding crowd behaviors in a large social event is crucial for event management. Passive WiFi sensing, by collecting WiFi probe requests sent from mobile devices, provides a better way to monitor crowds compared with people counters…

社会与信息网络 · 计算机科学 2020-02-12 Yuren Zhou , Billy Pik Lik Lau , Zann Koh , Chau Yuen , Benny Kai Kiat Ng

In recent years, significant progress has been made on the research of crowd counting. However, as the challenging scale variations and complex scenes existed in crowds, neither traditional convolution networks nor recent Transformer…

计算机视觉与模式识别 · 计算机科学 2022-01-03 Xing Wei , Yuanrui Kang , Jihao Yang , Yunfeng Qiu , Dahu Shi , Wenming Tan , Yihong Gong

The paper focuses on improving the recent plug-and-play patch rescaling module (PRM) based approaches for crowd counting. In order to make full use of the PRM potential and obtain more reliable and accurate results for challenging images…

计算机视觉与模式识别 · 计算机科学 2021-12-20 Usman Sajid , Guanghui Wang

Crowd density estimation is an important task for crowd monitoring. Many efforts have been done to automate the process of estimating crowd density from images and videos. Despite series of efforts, it remains a challenging task. In this…

计算机视觉与模式识别 · 计算机科学 2019-05-16 Adwan Alownie Alanazi , Muhammad Bilal

Drones shooting can be applied in dynamic traffic monitoring, object detecting and tracking, and other vision tasks. The variability of the shooting location adds some intractable challenges to these missions, such as varying scale,…

计算机视觉与模式识别 · 计算机科学 2020-09-30 Zhiyuan Zhao , Tao Han , Junyu Gao , Qi Wang , Xuelong Li

The existing crowd counting models require extensive training data, which is time-consuming to annotate. To tackle this issue, we propose a simple yet effective crowd counting method by utilizing the Segment-Everything-Everywhere Model…

计算机视觉与模式识别 · 计算机科学 2024-08-16 Jia Wan , Qiangqiang Wu , Wei Lin , Antoni B. Chan

Crowd image is arguably one of the most laborious data to annotate. In this paper, we devote to reduce the massive demand of densely labeled crowd data, and propose a novel weakly-supervised setting, in which we leverage the binary ranking…

计算机视觉与模式识别 · 计算机科学 2022-05-31 Zheng Xiong , Liangyu Chai , Wenxi Liu , Yongtuo Liu , Sucheng Ren , Shengfeng He

The size of large, geo-located datasets has reached scales where visualization of all data points is inefficient. Random sampling is a method to reduce the size of a dataset, yet it can introduce unwanted errors. We describe a method for…

人机交互 · 计算机科学 2017-09-14 Yan Zheng , Yi Ou , Alexander Lex , Jeff M. Phillips

Automated crowd counting from images/videos has attracted more attention in recent years because of its wide application in smart cities. But modelling the dense crowd heads is challenging and most of the existing works become less…

计算机视觉与模式识别 · 计算机科学 2020-08-11 Haoran Duan , Shidong Wang , Yu Guan