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This paper proposes a novel approach for crowd counting in low to high density scenarios in static images. Current approaches cannot handle huge crowd diversity well and thus perform poorly in extreme cases, where the crowd density in…

计算机视觉与模式识别 · 计算机科学 2020-02-28 Usman Sajid , Hasan Sajid , Hongcheng Wang , Guanghui Wang

In mobile robot navigation, despite advancements, the generation of optimal paths often disrupts pedestrian areas. To tackle this, we propose three key contributions to improve human-robot coexistence in shared spaces. Firstly, we have…

机器人学 · 计算机科学 2023-12-29 Tong Zhou , Senmao Qi , Guangdu Cen , Ziqi Zha , Erli Lyu , Jiaole Wang , Max Q. -H. Meng

Anomaly detection in crowd videos has become a popular area of research for the computer vision community. Several existing methods generally perform a prior training about the scene with or without the use of labeled data. However, it is…

计算机视觉与模式识别 · 计算机科学 2019-06-04 Arindam Sikdar , Ananda S. Chowdhury

Pedestrian detection in intelligent transportation systems has made significant progress but faces two critical challenges: (1) insufficient fusion of complementary information between visible and infrared spectra, particularly in complex…

计算机视觉与模式识别 · 计算机科学 2025-02-25 Rui Zhao , Zeyu Zhang , Yi Xu , Yi Yao , Yan Huang , Wenxin Zhang , Zirui Song , Xiuying Chen , Yang Zhao

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

To improve the identification of potential anomaly patterns in complex user behavior, this paper proposes an anomaly detection method based on a deep mixture density network. The method constructs a Gaussian mixture model parameterized by a…

机器学习 · 计算机科学 2025-05-20 Lu Dai , Wenxuan Zhu , Xuehui Quan , Renzi Meng , Sheng Chai , Yichen Wang

Sampling from unnormalized densities using diffusion models has emerged as a powerful paradigm. However, while recent approaches that use least-squares `matching' objectives have improved scalability, they often necessitate significant…

机器学习 · 计算机科学 2026-03-03 Denis Blessing , Lorenz Richter , Julius Berner , Egor Malitskiy , Gerhard Neumann

Community detection becomes an important problem with the booming of social networks. The Medoid-Shift algorithm preserves the benefits of Mean-Shift and can be applied to problems based on distance matrix, such as community detection. One…

社会与信息网络 · 计算机科学 2023-09-20 Jie Hou , Jiakang Li , Xiaokang Peng , Wei Ke , Yonggang Lu

Modeling crowd behavior relies on accurate data of pedestrian movements at a high level of detail. Imaging sensors such as cameras provide a good basis for capturing such detailed pedestrian motion data. However, currently available…

计算机视觉与模式识别 · 计算机科学 2012-10-11 Stefan Seer , Norbert Brändle , Carlo Ratti

This paper introduces a novel methodology for generating controlled, multi-level dust concentrations in a highly cluttered environment representative of harsh, enclosed environments, such as underground mines, road tunnels, or collapsed…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Zhenan Liu , Yaodong Cui , Amir Khajepour , George Shaker

The simulation of the dynamical behavior of pedestrians and crowds in spatial structures is a consolidated research and application context that still presents challenges for researchers in different fields and disciplines. Despite…

多智能体系统 · 计算机科学 2016-08-18 Giuseppe Vizzari , Stefania Bandini

This paper considers massive access in massive multiple-input multiple-output (MIMO) systems and proposes an adaptive active user detection and channel estimation scheme based on compressive sensing. By exploiting the sporadic traffic of…

信号处理 · 电气工程与系统科学 2020-08-04 Malong Ke , Zhen Gao , Yongpeng Wu , Xiqi Gao , Robert Schober

We present a pedestrian tracking algorithm, DensePeds, that tracks individuals in highly dense crowds (greater than 2 pedestrians per square meter). Our approach is designed for videos captured from front-facing or elevated cameras. We…

机器人学 · 计算机科学 2019-07-30 Rohan Chandra , Uttaran Bhattacharya , Aniket Bera , Dinesh Manocha

Crowd counting models in highly congested areas confront two main challenges: weak localization ability and difficulty in differentiating between foreground and background, leading to inaccurate estimations. The reason is that objects in…

计算机视觉与模式识别 · 计算机科学 2024-06-19 Yuehai Chen , Qingzhong Wang , Jing Yang , Badong Chen , Haoyi Xiong , Shaoyi Du

We present a novel learning-based collision avoidance algorithm, CrowdSteer, for mobile robots operating in dense and crowded environments. Our approach is end-to-end and uses multiple perception sensors such as a 2-D lidar along with a…

机器人学 · 计算机科学 2020-04-30 Jing Liang , Utsav Patel , Adarsh Jagan Sathyamoorthy , Dinesh Manocha

We consider the problem of recovering a single person's 3D human mesh from in-the-wild crowded scenes. While much progress has been in 3D human mesh estimation, existing methods struggle when test input has crowded scenes. The first reason…

计算机视觉与模式识别 · 计算机科学 2022-09-20 Hongsuk Choi , Gyeongsik Moon , JoonKyu Park , Kyoung Mu Lee

Nonparametric estimation of a mixing density based on observations from the corresponding mixture is a challenging statistical problem. This paper surveys the literature on a fast, recursive estimator based on the predictive recursion…

统计方法学 · 统计学 2022-09-15 Ryan Martin

Clustering algorithms are fundamental tools across many fields, with density-based methods offering particular advantages in identifying arbitrarily shaped clusters and handling noise. However, their effectiveness is often limited by the…

机器学习 · 计算机科学 2025-12-01 Meysam Shirdel Bilehsavar , Razieh Ghaedi , Samira Seyed Taheri , Xinqi Fan , Christian O'Reilly

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

Pedestrian detection is a problem of considerable practical interest. Adding to the list of successful applications of deep learning methods to vision, we report state-of-the-art and competitive results on all major pedestrian datasets with…

计算机视觉与模式识别 · 计算机科学 2013-04-03 Pierre Sermanet , Koray Kavukcuoglu , Soumith Chintala , Yann LeCun