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Various types of sensors can be used for Human Activity Recognition (HAR), and each of them has different strengths and weaknesses. Sometimes a single sensor cannot fully observe the user's motions from its perspective, which causes wrong…

Machine Learning · Computer Science 2024-08-05 Duc-Anh Nguyen , Cuong Pham , Nhien-An Le-Khac

This work presents a wearable human activity recognition (HAR) system that performs real-time inference directly inside a shank-mounted inertial measurement unit (IMU) to support low-latency control of a lower-limb exoskeleton. Unlike…

Robotics · Computer Science 2026-02-26 Mohammadsaleh Razmi , Iman Shojaei

Human activity recognition (HAR) using wearable sensors has benefited much less from recent advances in Machine Learning than fields such as computer vision and natural language processing. This is to a large extent due to the lack of large…

Artificial Intelligence · Computer Science 2020-11-24 Vitor Fortes Rey , Kamalveer Kaur Garewal , Paul Lukowicz

To properly assist humans in their needs, human activity recognition (HAR) systems need the ability to fuse information from multiple modalities. Our hypothesis is that multimodal sensors, visual and non-visual tend to provide complementary…

Computer Vision and Pattern Recognition · Computer Science 2022-11-09 Hyeongju Choi , Apoorva Beedu , Harish Haresamudram , Irfan Essa

Human activity recognition (HAR) research has increased in recent years due to its applications in mobile health monitoring, activity recognition, and patient rehabilitation. The typical approach is training a HAR classifier offline with…

Signal Processing · Electrical Eng. & Systems 2021-02-24 Sizhe An , Ganapati Bhat , Suat Gumussoy , Umit Ogras

Wearable sensor-based human activity recognition (HAR) has emerged as a principal research area and is utilized in a variety of applications. Recently, deep learning-based methods have achieved significant improvement in the HAR field with…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Sungho Suh , Vitor Fortes Rey , Paul Lukowicz

Human activity recognition (HAR) based on mobile sensors plays an important role in ubiquitous computing. However, the rise of data regulatory constraints precludes collecting private and labeled signal data from personal devices at scale.…

Signal Processing · Electrical Eng. & Systems 2021-06-02 Chenglin Li , Di Niu , Bei Jiang , Xiao Zuo , Jianming Yang

Human Activity Recognition (HAR) with wearable sensors is essential for applications in healthcare, fitness, and human-computer interaction. Bio-impedance sensing offers unique advantages for fine-grained motion capture but remains…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Lala Shakti Swarup Ray , Mengxi Liu , Deepika Gurung , Bo Zhou , Sungho Suh , Paul Lukowicz

Human activity recognition (HAR) in ubiquitous computing has been beginning to incorporate attention into the context of deep neural networks (DNNs), in which the rich sensing data from multimodal sensors such as accelerometer and gyroscope…

Computer Vision and Pattern Recognition · Computer Science 2021-07-22 Wenbin Gao , Lei Zhang , Qi Teng , Jun He , Hao Wu

The field of sensor-based human activity recognition (HAR) mainly uses posture, motion and context data of Inertial Measurement Units (IMUs) to identify daily activities. Despite the advancements in learning-based methods, it is challenging…

Artificial Intelligence · Computer Science 2026-05-12 Ye Zhang , Longguang Wang , Qing Gao , Chaocan Xiang , Mohammed Bennamoun , Yulan Guo

The use of a wide range of computer vision solutions, and more recently high-end Inertial Measurement Units (IMU) have become increasingly popular for assessing human physical activity in clinical and research settings. Nevertheless, to…

Wearable sensor-based human activity recognition (HAR) is a critical research domain in activity perception. However, achieving high efficiency and long sequence recognition remains a challenge. Despite the extensive investigation of…

Computer Vision and Pattern Recognition · Computer Science 2024-08-09 Shuangjian Li , Tao Zhu , Furong Duan , Liming Chen , Huansheng Ning , Christopher Nugent , Yaping Wan

In the realm of smart sensing with the Internet of Things, earable devices are empowered with the capability of multi-modality sensing and intelligence of context-aware computing, leading to its wide usage in Human Activity Recognition…

Signal Processing · Electrical Eng. & Systems 2024-06-26 Shengzhe Lyu , Yongliang Chen , Di Duan , Renqi Jia , Weitao Xu

User dependence remains one of the most difficult general problems in Human Activity Recognition (HAR), in particular when using wearable sensors. This is due to the huge variability of the way different people execute even the simplest…

Signal Processing · Electrical Eng. & Systems 2021-10-26 Sungho Suh , Vitor Fortes Rey , Paul Lukowicz

As a fundamental problem in ubiquitous computing and machine learning, sensor-based human activity recognition (HAR) has drawn extensive attention and made great progress in recent years. HAR aims to recognize human activities based on the…

Signal Processing · Electrical Eng. & Systems 2022-03-01 Yimu Wang , Kun Yu , Yan Wang , Hui Xue

In recent years, deep learning has emerged as a potent tool across a multitude of domains, leading to a surge in research pertaining to its application in the wearable human activity recognition (WHAR) domain. Despite the rapid development,…

Machine Learning · Computer Science 2024-01-12 Yiran Huang , Haibin Zhao , Yexu Zhou , Till Riedel , Michael Beigl

Human activity recognition (HAR) ideally relies on data from wearable or environment-instrumented sensors sampled at regular intervals, enabling standard neural network models optimized for consistent time-series data as input. However,…

Signal Processing · Electrical Eng. & Systems 2025-01-28 Mengxi Liu , Daniel Geißler , Sizhen Bian , Bo Zhou , Paul Lukowicz

MEx: Multi-modal Exercises Dataset is a multi-sensor, multi-modal dataset, implemented to benchmark Human Activity Recognition(HAR) and Multi-modal Fusion algorithms. Collection of this dataset was inspired by the need for recognising and…

Computer Vision and Pattern Recognition · Computer Science 2019-08-27 Anjana Wijekoon , Nirmalie Wiratunga , Kay Cooper

With the prevalence of wearable devices, inertial measurement unit (IMU) data has been utilized in monitoring and assessment of human mobility such as human activity recognition (HAR). Training deep neural network (DNN) models for these…

Signal Processing · Electrical Eng. & Systems 2022-02-23 Yujiao Hao , Boyu Wang , Rong Zheng

A person's movement or relative positioning can be effectively captured by different types of sensors and corresponding sensor output can be utilized in various manipulative techniques for the classification of different human activities.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Utsab Saha , Sawradip Saha , Tahmid Kabir , Shaikh Anowarul Fattah , Mohammad Saquib