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相关论文: Scale-Aware Crowd Counting Using a Joint Likelihoo…

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Recently, density map regression-based methods have dominated in crowd counting owing to their excellent fitting ability on density distribution. However, further improvement tends to saturate mainly because of the confusing background…

计算机视觉与模式识别 · 计算机科学 2022-12-13 Chenliang Gu , Changan Wang , Bin-Bin Gao , Jun Liu , Tianliang Zhang

Federated learning (FL) has emerged as a prominent method for collaboratively training machine learning models using local data from edge devices, all while keeping data decentralized. However, accounting for the quality of data contributed…

机器学习 · 计算机科学 2024-09-05 Haoyuan Li , Mathias Funk , Nezihe Merve Gürel , Aaqib Saeed

Semi-supervised crowd analysis is a prominent area of research, as unlabeled data are typically abundant and inexpensive to obtain. However, traditional point-based annotations constrain performance because individual regions are inherently…

计算机视觉与模式识别 · 计算机科学 2026-03-18 Jiyang Huang , Hongru Cheng , Wei Lin , Jia Wan , Antoni B. Chan

Crowd localization is to predict each instance head position in crowd scenarios. Since the distance of instances being to the camera are variant, there exists tremendous gaps among scales of instances within an image, which is called the…

计算机视觉与模式识别 · 计算机科学 2023-03-29 Juncheng Wang , Junyu Gao , Yuan Yuan , Qi Wang

Crowd simulation holds crucial applications in various domains, such as urban planning, architectural design, and traffic arrangement. In recent years, physics-informed machine learning methods have achieved state-of-the-art performance in…

物理与社会 · 物理学 2024-02-13 Hongyi Chen , Jingtao Ding , Yong Li , Yue Wang , Xiao-Ping Zhang

In the last decade, crowd counting and localization attract much attention of researchers due to its wide-spread applications, including crowd monitoring, public safety, space design, etc. Many Convolutional Neural Networks (CNN) are…

计算机视觉与模式识别 · 计算机科学 2020-08-05 Qi Wang , Junyu Gao , Wei Lin , Xuelong Li

Smart sensing provides an easier and convenient data-driven mechanism for monitoring and control in the built environment. Data generated in the built environment are privacy sensitive and limited. Federated learning is an emerging paradigm…

机器学习 · 计算机科学 2022-09-07 Rahul Mishra , Hari Prabhat Gupta , Tanima Dutta , Sajal K. Das

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…

计算机视觉与模式识别 · 计算机科学 2026-02-10 Jiwei Chen , Qi Wang , Junyu Gao , Jing Zhang , Dingyi Li , Jing-Jia Luo

We formulate counting as a sequential decision problem and present a novel crowd counting model solvable by deep reinforcement learning. In contrast to existing counting models that directly output count values, we divide one-step…

计算机视觉与模式识别 · 计算机科学 2020-07-17 Liang Liu , Hao Lu , Hongwei Zou , Haipeng Xiong , Zhiguo Cao , Chunhua Shen

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…

计算机视觉与模式识别 · 计算机科学 2019-04-02 Greg Olmschenk , Hao Tang , Zhigang Zhu

Most crowd counting methods directly regress blockwise density maps using Mean Squared Error (MSE) losses. This practice has two key limitations: (1) it fails to account for the extreme spatial sparsity of annotations - over 95% of 8x8…

计算机视觉与模式识别 · 计算机科学 2025-08-01 Yiming Ma , Victor Sanchez , Tanaya Guha

Crowd counting is an important problem in computer vision due to its wide range of applications in image understanding. Currently, this problem is typically addressed using deep learning approaches, such as Convolutional Neural Networks…

计算机视觉与模式识别 · 计算机科学 2024-01-26 Zhen Wang , Yuelei Li , Jia Wan , Nuno Vasconcelos

State-of-the-art methods for counting people in crowded scenes rely on deep networks to estimate crowd density. While effective, deep learning approaches are vulnerable to adversarial attacks, which, in a crowd-counting context, can lead to…

计算机视觉与模式识别 · 计算机科学 2020-03-19 Weizhe Liu , Mathieu Salzmann , Pascal Fua

In crowd counting, each training image contains multiple people, where each person is annotated by a dot. Existing crowd counting methods need to use a Gaussian to smooth each annotated dot or to estimate the likelihood of every pixel given…

计算机视觉与模式识别 · 计算机科学 2020-10-27 Boyu Wang , Huidong Liu , Dimitris Samaras , Minh Hoai

Datasets for training crowd counting deep networks are typically heavy-tailed in count distribution and exhibit discontinuities across the count range. As a result, the de facto statistical measures (MSE, MAE) exhibit large variance and…

计算机视觉与模式识别 · 计算机科学 2021-08-20 Sravya Vardhani Shivapuja , Mansi Pradeep Khamkar , Divij Bajaj , Ganesh Ramakrishnan , Ravi Kiran Sarvadevabhatla

Crowd counting is an important yet challenging task due to the large scale and density variation. Recent investigations have shown that distilling rich relations among multi-scale features and exploiting useful information from the…

计算机视觉与模式识别 · 计算机科学 2020-02-04 Ao Luo , Fan Yang , Xin Li , Dong Nie , Zhicheng Jiao , Shangchen Zhou , Hong Cheng

An important aspect of urban planning is understanding crowd levels at various locations, which typically require the use of physical sensors. Such sensors are potentially costly and time consuming to implement on a large scale. To address…

社会与信息网络 · 计算机科学 2020-12-08 Jerome Heng , Junhua Liu , Kwan Hui Lim

Simultaneous localization and mapping (SLAM) has been richly researched in past years particularly with regard to range-based or visual-based sensors. Instead of deploying dedicated devices that use visual features, it is more pragmatic to…

We propose a novel crowd counting approach that leverages abundantly available unlabeled crowd imagery in a learning-to-rank framework. To induce a ranking of cropped images , we use the observation that any sub-image of a crowded scene…

计算机视觉与模式识别 · 计算机科学 2018-03-09 Xialei Liu , Joost van de Weijer , Andrew D. Bagdanov

Large-scale federated learning (FL) over wireless multiple access channels (MACs) has emerged as a crucial learning paradigm with a wide range of applications. However, its widespread adoption is hindered by several major challenges,…

机器学习 · 计算机科学 2024-11-01 Vineet Sunil Gattani , Junshan Zhang , Gautam Dasarathy