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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

Remembering our day-to-day social interactions is challenging even if you aren't a blue memory challenged fish. The ability to automatically detect and remember these types of interactions is not only beneficial for individuals interested…

Human-Computer Interaction · Computer Science 2018-11-19 Kleomenis Katevas , Katrin Hänsel , Richard Clegg , Ilias Leontiadis , Hamed Haddadi , Laurissa Tokarchuk

In this paper, we propose BeamLLM, a vision-aided millimeter-wave (mmWave) beam prediction framework leveraging large language models (LLMs) to address the challenges of high training overhead and latency in mmWave communication systems. By…

Machine Learning · Computer Science 2025-06-30 Can Zheng , Jiguang He , Guofa Cai , Zitong Yu , Chung G. Kang

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…

Computer Vision and Pattern Recognition · Computer Science 2019-07-19 Yanyan Fang , Biyun Zhan , Wandi Cai , Shenghua Gao , Bo Hu

Human motion sensing plays a crucial role in smart systems for decision-making, user interaction, and personalized services. Extensive research that has been conducted is predominantly based on cameras, whose intrusive nature limits their…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Fangqiang Ding , Zhen Luo , Peijun Zhao , Chris Xiaoxuan Lu

In this paper, we present mmFlux: a novel framework for extracting underlying crowd motion patterns and inferring crowd semantics using mmWave radar. First, our proposed signal processing pipeline combines optical flow estimation concepts…

Signal Processing · Electrical Eng. & Systems 2025-09-01 Anurag Pallaprolu , Winston Hurst , Yasamin Mostofi

Millimetre-wave (mmWave) radar has emerged as an attractive and cost-effective alternative for human activity sensing compared to traditional camera-based systems. mmWave radars are also non-intrusive, providing better protection for user…

Machine Learning · Computer Science 2023-11-03 Han Cui , Shu Zhong , Jiacheng Wu , Zichao Shen , Naim Dahnoun , Yiren Zhao

Detection-based methods have been viewed unfavorably in crowd analysis due to their poor performance in dense crowds. However, we argue that the potential of these methods has been underestimated, as they offer crucial information for crowd…

Computer Vision and Pattern Recognition · Computer Science 2023-08-31 Shaokai Wu , Fengyu Yang

Millimeter wave (mmWave) based gesture recognition technology provides a good human computer interaction (HCI) experience. Prior works focus on the close-range gesture recognition, but fall short in range extension, i.e., they are unable to…

Human-Computer Interaction · Computer Science 2020-02-10 Yu Liu , Yuheng Wang , Haipeng Liu , Anfu Zhou , Jianhua Liu , Ning Yang

Current people detectors operate either by scanning an image in a sliding window fashion or by classifying a discrete set of proposals. We propose a model that is based on decoding an image into a set of people detections. Our system takes…

Computer Vision and Pattern Recognition · Computer Science 2015-07-10 Russell Stewart , Mykhaylo Andriluka

Mobile on-body sensing has distinct advantages for the analysis and understanding of crowd dynamics: sensing is not geographically restricted to a specific instrumented area, mobile phones offer on-body sensing and they are already deployed…

Physics and Society · Physics 2011-09-09 Daniel Roggen , Martin Wirz , Gerhard Tröster , Dirk Helbing

The crowd counting task aims at estimating the number of people located in an image or a frame from videos. Existing methods widely adopt density maps as the training targets to optimize the point-to-point loss. While in testing phase, we…

Computer Vision and Pattern Recognition · Computer Science 2020-05-14 Xiyang Liu , Jie Yang , Wenrui Ding

In this paper, we present a novel methodology for crowd size estimation using monostatic mmWave radar. Our aim is to accurately count large crowds that follow a non-uniform spatial distribution. Our estimation approach relies on the…

Signal Processing · Electrical Eng. & Systems 2025-04-11 Anurag Pallaprolu , Aaditya Prakash Kattekola , Winston Hurst , Upamanyu Madhow , Ashutosh Sabharwal , Yasamin Mostofi

In this paper, we present a novel method to recognize the types of crowd movement from crowd trajectories using agent-based motion models (AMMs). Our idea is to apply a number of AMMs, referred to as exemplar-AMMs, to describe the crowd…

Computer Vision and Pattern Recognition · Computer Science 2018-10-02 Wenxi Liu , Rynson W. H. Lau , Xiaogang Wang , Dinesh Manocha

The emergence of large language models (LLMs) has sparked much interest in creating LLM-based digital populations that can be applied to many applications such as social simulation, crowdsourcing, marketing, and recommendation systems. A…

Multiagent Systems · Computer Science 2026-01-15 Ryan Feng Lin , Keyu Tian , Hanming Zheng , Congjing Zhang , Li Zeng , Shuai Huang

Simultaneous use of high-end wearable wireless devices like smart glasses is challenging in a dense indoor environment due to the high nature of interference. In this scenario, the millimeter wave (mmWave) band offers promising potential…

Information Theory · Computer Science 2016-06-14 Kiran Venugopal , Robert W. Heath

Crowd counting is a challenging task due to the heavy occlusions, scales, and density variations. Existing methods handle these challenges effectively while ignoring low-resolution (LR) circumstances. The LR circumstances weaken the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Jiahao Xie , Wei Xu , Dingkang Liang , Zhanyu Ma , Kongming Liang , Weidong Liu , Rui Wang , Ling Jin

Crowd counting is a challenging problem especially in the presence of huge crowd diversity across images and complex cluttered crowd-like background regions, where most previous approaches do not generalize well and consequently produce…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 Usman Sajid , Guanghui Wang

With the rapid development of the Internet of Things (IoT) and the rise of 5G communication networks and automatic driving, millimeter wave (mmWave) sensing is emerging and starts impacting our life and workspace. mmWave sensing can sense…

Networking and Internet Architecture · Computer Science 2023-08-08 Jia Zhang , Rui Xi , Yuan He , Yimiao Sun , Xiuzhen Guo , Weiguo Wang , Xin Na , Yunhao Liu , Zhenguo Shi , Tao Gu

The millimeter wave (mmWave) frequencies offer the potential for enormous capacity wireless links. However, designing robust communication systems at these frequencies requires that we understand the channel dynamics over both time and…

Signal Processing · Electrical Eng. & Systems 2017-12-18 Christopher Slezak , Aditya Dhananjay , Sundeep Rangan