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Most recent work on vision-based human activity recognition (HAR) focuses on designing complex deep learning models for the task. In so doing, there is a requirement for large datasets to be collected. As acquiring and processing large…

计算机视觉与模式识别 · 计算机科学 2020-04-30 Bruce X. B. Yu , Yan Liu , Keith C. C. Chan

Real-time Human Activity Recognition (HAR) has wide-ranging applications in areas such as context-aware environments, public safety, assistive technologies, and autonomous monitoring and surveillance systems. However, existing real-time HAR…

计算机视觉与模式识别 · 计算机科学 2026-01-26 Wasi Ullah , Yasir Noman Khalid , Saddam Hussain Khan

Human Action Recognition (HAR) plays a crucial role in healthcare, fitness tracking, and ambient assisted living technologies. While traditional vision based HAR systems are effective, they pose privacy concerns. mmWave radar sensors offer…

计算机视觉与模式识别 · 计算机科学 2025-08-15 Maimunatu Tunau , Vincent Gbouna Zakka , Zhuangzhuang Dai

The safety and security of the passengers in vehicles in the face of cyber attacks is a key element in the automotive industry, especially with the emergence of the Advanced Driver Assistance Systems (ADAS) and the vast improvement in…

密码学与安全 · 计算机科学 2021-04-28 Rony Komissarov , Avishai Wool

Object detection in radar imagery with neural networks shows great potential for improving autonomous driving. However, obtaining annotated datasets from real radar images, crucial for training these networks, is challenging, especially in…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Oded Bialer , Yuval Haitman

Radio-Frequency (RF) based device-free Human Activity Recognition (HAR) rises as a promising solution for many applications. However, device-free (or contactless) sensing is often more sensitive to environment changes than device-based (or…

信号处理 · 电气工程与系统科学 2021-11-09 Shuya Ding , Zhe Chen , Tianyue Zheng , Jun Luo

This work presents the use of frequency modulated continuous wave (FMCW) radar technology combined with a machine learning model to differentiate between normal and abnormal breath rates. The proposed system non-contactly collects data…

机器学习 · 计算机科学 2024-07-19 Mohammad Wassaf Ali , Ayushi Gupta , Mujeev Khan , Mohd Wajid

This paper presents a novel hybrid deep learning framework designed to enhance the robustness of CSI-based Human Activity Recognition (HAR) within bandwidth-constrained Wi-Fi sensing environments. The core of our proposed methodology is a…

信号处理 · 电气工程与系统科学 2026-02-10 Alison M. Fernandes , Hermes I. Del Monego , Bruno S. Chang , Anelise Munaretto , Hélder M. Fontes , Rui Campos

Algorithms for mutual interference mitigation and object parameter estimation are a key enabler for automotive applications of frequency-modulated continuous wave (FMCW) radar. In this paper, we introduce a signal separation method to…

信号处理 · 电气工程与系统科学 2024-10-03 Mate Toth , Erik Leitinger , Klaus Witrisal

The primary objective of human activity recognition (HAR) is to infer ongoing human actions from sensor data, a task that finds broad applications in health monitoring, safety protection, and sports analysis. Despite proliferating research,…

计算机视觉与模式识别 · 计算机科学 2025-07-14 Hang Xiao , Ying Yu , Jiarui Li , Zhifan Yang , Haotian Tang , Hanyu Liu , Chao Li

Multiple-input multiple-output (MIMO) radar offers several performance and flexibility advantages over traditional radar arrays. However, high angular and Doppler resolutions necessitate a large number of antenna elements and the…

信号处理 · 电气工程与系统科学 2025-09-11 Chandrashekhar Rai , Himali Singh , Arpan Chattopadhyay

In smart healthcare, Human Activity Recognition (HAR) is considered to be an efficient model in pervasive computation from sensor readings. The Ambient Assisted Living (AAL) in the home or community helps the people in providing independent…

机器学习 · 计算机科学 2021-11-22 Pankaj Khatiwada , Ayan Chatterjee , Matrika Subedi

Transformers have excelled in natural language processing and computer vision, paving their way to sensor-based Human Activity Recognition (HAR). Previous studies show that transformers outperform their counterparts exclusively when they…

机器学习 · 计算机科学 2024-10-18 Clayton Souza Leite , Henry Mauranen , Aziza Zhanabatyrova , Yu Xiao

One in four people dementia live alone, leading family members to take on caregiving roles from a distance. Many researchers have developed remote monitoring solutions to lessen caregiving needs; however, limitations remain including…

声音 · 计算机科学 2025-09-01 Dong Yoon Lee , Alyssa Weakley , Hui Wei , Blake Brown , Keyana Carrion , Shijia Pan

Detecting human actions is a crucial task for autonomous robots and vehicles, often requiring the integration of various data modalities for improved accuracy. In this study, we introduce a novel approach to Human Action Recognition (HAR)…

计算机视觉与模式识别 · 计算机科学 2025-03-06 Mohammad Mahdavian , Mohammad Loni , Ted Samuelsson , Mo Chen

Human Activity Recognition (HAR) is a crucial technology for many applications such as smart homes, surveillance, human assistance and health care. This technology utilises pattern recognition and can contribute to the development of…

人机交互 · 计算机科学 2022-06-10 Farhad Nazari , Darius Nahavandi , Navid Mohajer , Abbas Khosravi

With increasing application of frequency-modulated continuous wave (FMCW) radars in autonomous vehicles, mutual interference among FMCW radars poses a serious threat. Through this paper, we present a novel approach to effectively and…

信号处理 · 电气工程与系统科学 2023-01-02 Abhilash Gaur , Po-Hsuan Tseng , Kai-Ten Feng , Seshan Srirangarajan

We investigate the problem of sparse target detection from widely distributed multistatic \textit{Frequency Modulated Continuous Wave} (FMCW) radar systems (using chirp modulation). Unlike previous strategies (\emph{e.g.}, developed for…

信号处理 · 电气工程与系统科学 2020-01-03 Gilles Monnoyer de Galland , Thomas Feuillen , Laurent Jacques , Luc Vandendorpe

Frequency modulated continuous wave (FMCW) radar is widely used in autonomous driving and industrial inspection due to its high-resolution target location and velocity estimation capability. However, the plethora of connected devices in…

信号处理 · 电气工程与系统科学 2026-05-28 Luoyan Zhu , Sergiy A. Vorobyov , Jie Wang , Yinsheng Liu , Zhangdui Zhong

Human activity recognition (HAR) is a classification task that aims to classify human activities or predict human behavior by means of features extracted from sensors data. Typical HAR systems use wearable sensors and/or handheld and mobile…