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Human Activity Recognition (HAR) is a fundamental technology for numerous human - centered intelligent applications. Although deep learning methods have been utilized to accelerate feature extraction, issues such as multimodal data mixing,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Ying Yu , Siyao Li , Yixuan Jiang , Hang Xiao , Jingxi Long , Haotian Tang , Hanyu Liu , Chao Li

We present a system for concurrent activity recognition. To extract features associated with different activities, we propose a feature-to-activity attention that maps the extracted global features to sub-features associated with individual…

Computer Vision and Pattern Recognition · Computer Science 2018-12-10 Yanyi Zhang , Xinyu Li , Kaixiang Huang , Yehan Wang , Shuhong Chen , Ivan Marsic

Human activity recognition (HAR) is a well-established field, significantly advanced by modern machine learning (ML) techniques. While companies have successfully integrated HAR into consumer products, they typically rely on a predefined…

Machine Learning · Computer Science 2024-02-16 Jingwei Zuo , George Arvanitakis , Mthandazo Ndhlovu , Hakim Hacid

Edge-based multimodal medical monitoring requires models that balance diagnostic accuracy with severe energy constraints. Continuous acquisition of ECG, PPG, EMG, and IMU streams rapidly drains wearable batteries, often limiting operation…

Emerging Technologies · Computer Science 2026-04-14 Chengwei Zhou , Zhaoyan Jia , Haotian Yu , Xuming Chen , Brandon Lee , Christopher Pulliam , Steve Majerus , Massoud Pedram , Gourav Datta

This paper presents a 3-step system that estimates the real-time energy expenditure of an individual in a non-intrusive way. First, using the user's smart-phone's sensors, we build a Decision Tree model to recognize his physical activity…

Computers and Society · Computer Science 2020-09-09 Maxime De Bois , Hamdi Amroun , Mehdi Ammi

Accurate food intake detection is vital for dietary monitoring and chronic disease prevention. Traditional self-report methods are prone to recall bias, while camera-based approaches raise concerns about privacy. Furthermore, existing…

Computer Vision and Pattern Recognition · Computer Science 2025-11-10 Jiaxi Yin , Pengcheng Wang , Han Ding , Fei Wang

Activity recognition computer vision algorithms can be used to detect the presence of autism-related behaviors, including what are termed "restricted and repetitive behaviors", or stimming, by diagnostic instruments. The limited data that…

Computer Vision and Pattern Recognition · Computer Science 2021-01-12 Peter Washington , Aaron Kline , Onur Cezmi Mutlu , Emilie Leblanc , Cathy Hou , Nate Stockham , Kelley Paskov , Brianna Chrisman , Dennis P. Wall

Wearable sensor based human activity recognition is a challenging problem due to difficulty in modeling spatial and temporal dependencies of sensor signals. Recognition models in closed-set assumption are forced to yield members of known…

Computer Vision and Pattern Recognition · Computer Science 2024-04-24 M Tanjid Hasan Tonmoy , Saif Mahmud , A K M Mahbubur Rahman , M Ashraful Amin , Amin Ahsan Ali

This study uses multisensory data (i.e., color and depth) to recognize human actions in the context of multimodal human-robot interaction. Here we employed the iCub robot to observe the predefined actions of the human partners by using four…

Robotics · Computer Science 2022-12-20 Kas Kniesmeijer , Murat Kirtay

Increasing attention to the research on activity monitoring in smart homes has motivated the employment of ambient intelligence to reduce the deployment cost and solve the privacy issue. Several approaches have been proposed for…

Computer Vision and Pattern Recognition · Computer Science 2018-06-19 Son N. Tran , Qing Zhang , Mohan Karunanithi

In this study, we propose a method for single sensor-based activity recognition, trained with data from multiple sensors. There is no doubt that the performance of complex activity recognition systems increases when we use enough sensors…

Human-Computer Interaction · Computer Science 2020-02-27 Paula Lago , Moe Matsuki , Sozo Inoue

Multimodal egocentric activity recognition integrates visual and inertial cues for robust first-person behavior understanding. However, deploying such systems in open-world environments requires detecting novel activities while continuously…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Wonseon Lim , Hyejeong Im , Dae-Won Kim

The use of wearable and mobile devices for health monitoring and activity recognition applications is increasing rapidly. These devices need to maximize their accuracy and active time under a tight energy budget imposed by battery and small…

Signal Processing · Electrical Eng. & Systems 2019-02-25 Ganapati Bhat , Kunal Bagewadi , Hyung Gyu Lee , Umit Y. Ogras

Human activity recognition (HAR) is often limited by the scarcity of labeled datasets due to the high cost and complexity of real-world data collection. To mitigate this, recent work has explored generating virtual inertial measurement unit…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Zikang Leng , Archith Iyer , Thomas Plötz

Human Activity Recognition (HAR) is one of the fundamental building blocks of human assistive devices like orthoses and exoskeletons. There are different approaches to HAR depending on the application. Numerous studies have been focused on…

Human-Computer Interaction · Computer Science 2024-03-08 Farhad Nazari , Darius Nahavandi , Navid Mohajer , Abbas Khosravi

While on-body device-based human motion estimation is crucial for applications such as XR interaction, existing methods often suffer from poor wearability, expensive hardware, and cumbersome calibration, which hinder their adoption in daily…

Computer Vision and Pattern Recognition · Computer Science 2025-12-25 Siqi Zhu , Yixuan Li , Junfu Li , Qi Wu , Zan Wang , Haozhe Ma , Wei Liang

With the increasing availability of wearable devices, research on egocentric activity recognition has received much attention recently. In this paper, we build a Multimodal Egocentric Activity dataset which includes egocentric videos and…

Multimedia · Computer Science 2016-01-26 Sibo Song , Ngai-Man Cheung , Vijay Chandrasekhar , Bappaditya Mandal , Jie Lin

Despite the widespread integration of ambient light sensors (ALS) in smart devices commonly used for screen brightness adaptation, their application in human activity recognition (HAR), primarily through body-worn ALS, is largely…

Artificial Intelligence · Computer Science 2024-08-23 Lala Shakti Swarup Ray , Daniel Geißler , Mengxi Liu , Bo Zhou , Sungho Suh , Paul Lukowicz

The use of tiny devices capable of low-latency gesture recognition is gaining momentum in everyday human-computer interaction and especially in medical monitoring fields. Embedded solutions such as fall detection, rehabilitation tracking,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Veeramani Pugazhenthi , Wei-Hsiang Chu , Junwei Lu , Jadyn N. Miyahira , Mahdi Eslamimehr , Pratik Satam , Rozhin Yasaei , Soheil Salehi

The extensive ubiquitous availability of sensors in smart devices and the Internet of Things (IoT) has opened up the possibilities for implementing sensor-based activity recognition. As opposed to traditional sensor time-series processing…

Signal Processing · Electrical Eng. & Systems 2023-10-09 Danial Ahangarani , Mohammad Shirazi , Navid Ashraf