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Eating speed is an important indicator that has been widely investigated in nutritional studies. The relationship between eating speed and several intake-related problems such as obesity, diabetes, and oral health has received increased…

Signal Processing · Electrical Eng. & Systems 2024-10-08 Chunzhuo Wang , T. Sunil Kumar , Walter De Raedt , Guido Camps , Hans Hallez , Bart Vanrumste

Social interactions play a crucial role in shaping human behavior, relationships, and societies. It encompasses various forms of communication, such as verbal conversation, non-verbal gestures, facial expressions, and body language. In this…

Machine Learning · Computer Science 2026-05-13 Alice Zhang , Callihan Bertley , Dawei Liang , Edison Thomaz

Human Activity Recognition (HAR) using wearable devices such as smart watches embedded with Inertial Measurement Unit (IMU) sensors has various applications relevant to our daily life, such as workout tracking and health monitoring. In this…

Computer Vision and Pattern Recognition · Computer Science 2021-12-22 Wenjin Tao , Haodong Chen , Md Moniruzzaman , Ming C. Leu , Zhaozheng Yi , Ruwen Qin

Recent studies confirm the applicability of Inertial Measurement Unit (IMU)-based systems for human motion analysis. Notwithstanding, high-end IMU-based commercial solutions are yet too expensive and complex to democratize their use among a…

Wearable inertial measurement units (IMUs) provide a cost-effective approach to assessing human movement in clinical and everyday environments. However, developing the associated classification models for robust assessment of…

Computer Vision and Pattern Recognition · Computer Science 2025-11-10 Andreas Spilz , Heiko Oppel , Jochen Werner , Kathrin Stucke-Straub , Felix Capanni , Michael Munz

This work devises an optimized machine learning approach for human arm pose estimation from a single smartwatch. Our approach results in a distribution of possible wrist and elbow positions, which allows for a measure of uncertainty and the…

Robotics · Computer Science 2024-08-19 Fabian C Weigend , Shubham Sonawani , Michael Drolet , Heni Ben Amor

Back pain is one of the leading causes of disability-adjusted life year globally and the most common cause of low back pain is poor sitting posture. There are several actions that can be adopted proactively to avoid poor sitting posture…

Systems and Control · Electrical Eng. & Systems 2021-04-29 Nusrat Binta Nizam , Tohfatul Jinan , Wahida Binte Naz Aurthy , Md. Rakib Hossen , Jahid Ferdous

Spatial navigation of indoor space usage patterns reveals important cues about the cognitive health of individuals. In this work, we present a low-cost, scalable, open-source edge computing system using Bluetooth Low Energy (BLE) and…

With the rapid development of wearable technology, devices like smartphones, smartwatches, and headphones equipped with IMUs have become essential for applications such as pedestrian positioning. However, traditional pedestrian dead…

Machine Learning · Computer Science 2024-11-13 Lan Sun , Songpengcheng Xia , Junyuan Deng , Jiarui Yang , Zengyuan Lai , Qi Wu , Ling Pei

Inertial Measurement Unit (IMU) sensors are being increasingly used to detect human gestures and movements. Using a single IMU sensor, whole body movement recognition remains a hard problem because movements may not be adequately captured…

Machine Learning · Computer Science 2020-09-07 Varun Badrinath Krishna

Manufacturing industries strive to improve production efficiency and product quality by deploying advanced sensing and control systems. Wearable sensors are emerging as a promising solution for achieving this goal, as they can provide…

Advances in IoT technologies combined with new algorithms have enabled the collection and processing of high-rate multi-source data streams that quantify human behavior in a fine-grained level and can lead to deeper insights on individual…

Stride length estimation using inertial measurement unit (IMU) sensors is getting popular recently as one representative gait parameter for health care and sports training. The traditional estimation method requires some explicit…

Machine Learning · Computer Science 2022-05-09 Jien-De Sui , Tian-Sheuan Chang

Positional estimation is of great importance in the public safety sector. Emergency responders such as fire fighters, medical rescue teams, and the police will all benefit from a resilient positioning system to deliver safe and effective…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Zhuangzhuang Dai , Muhamad Risqi U. Saputra , Chris Xiaoxuan Lu , Niki Trigoni , Andrew Markham

Respiratory rate (RR) serves as an indicator of various medical conditions, such as cardiovascular diseases and sleep disorders. These RR estimation methods were mostly designed for finger-based PPG collected from subjects in stationary…

Signal Processing · Electrical Eng. & Systems 2024-01-12 Kianoosh Kazemi , Iman Azimi , Pasi Liljeberg , Amir M. Rahmani

Accurately estimating vehicle velocity via smartphone is critical for mobile navigation and transportation. This paper introduces a cutting-edge framework for velocity estimation that incorporates temporal learning models, utilizing…

Robotics · Computer Science 2025-05-27 Xuan Xiao , Xiaotong Ren , Haitao Li

A smartwatch worn continuously on the wrist has the potential to perceive rich interactive gestures and natural behaviors of the user. Unfortunately, the current interaction functionality of smartwatches is primarily limited by the small…

Human-Computer Interaction · Computer Science 2024-08-26 Yingtian Shi , Chun Yu , Xuyang Lu , Xing-Dong Yang , Yuntao Wang , Yuanchun Shi

Previous gait phase detection as convolutional neural network (CNN) based classification task requires cumbersome manual setting of time delay or heavy overlapped sliding windows to accurately classify each phase under different test cases,…

Machine Learning · Computer Science 2022-05-11 Jien-De Sui , Wei-Han Chen , Tzyy-Yuang Shiang , Tian-Sheuan Chang

Employing an inertial measurement unit (IMU) as an additional sensor can dramatically improve both reliability and accuracy of visual/Lidar odometry (VO/LO). Different IMU integration models are introduced using different assumptions on the…

Robotics · Computer Science 2019-12-03 John Henawy , Zhengguo Li , Wei Yun Yau , Gerald Seet , Kong Wah Wan

This paper deals with the problem of full state estimation for vehicles navigating in a three dimensional space. We assume that the vehicle is equipped with an Inertial Measurement Unit (IMU) providing body-frame measurements of the angular…

Optimization and Control · Mathematics 2021-02-01 Soulaimane Berkane , Abdelhamid Tayebi , Simone de Marco