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Human affects are complex paradox and an active research domain in affective computing. Affects are traditionally determined through a self-report based psychometric questionnaire or through facial expression recognition. However, few…

Human-Computer Interaction · Computer Science 2021-02-16 Md. Mahbubur Rahman , Akash Poddar , Md. Golam Rabiul Alam , Samrat Kumar Dey

Reliable stress recognition is critical in applications such as medical monitoring and safety-critical systems, including real-world driving. While stress is commonly detected using physiological signals such as perinasal perspiration and…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Paraskevi Valergaki , Vassilis C. Nicodemou , Iason Oikonomidis , Antonis Argyros , Anastasios Roussos

Objective: Machine learning- and deep learning-based models have recently been employed in motor imagery intention classification from electroencephalogram (EEG) signals. Nevertheless, there is a limited understanding of feature selection…

Signal Processing · Electrical Eng. & Systems 2025-04-08 Muhammad Sudipto Siam Dip , Mohammod Abdul Motin , Md. Anik Hasan , Sumaiya Kabir

Muscle fatigue is defined as the point at which the muscle is no longer able to sustain the required force or work output level. The overexertion of muscle force and muscle fatigue can induce acute pain and chronic pain in human body. When…

Robotics · Computer Science 2008-09-19 Liang Ma , Fouad Bennis , Damien Chablat , Wei Zhang

Cardiovascular disease (CVD) is a leading cause of morbidity and mortality worldwide, and sustained hypertension is an often silent risk factor, making cuffless continuous blood pressure (BP) monitoring with wearable devices important for…

Signal Processing · Electrical Eng. & Systems 2025-12-02 Yiqiao Chen , Fazheng Xu , Zijian Huang , Juchi He , Zhenghui Feng

Physiological fatigue, a state of reduced cognitive and physical performance resulting from prolonged mental or physical exertion, poses significant challenges in various domains, including healthcare, aviation, transportation, and…

Human-Computer Interaction · Computer Science 2024-01-30 Ildar Rakhmatulin

Detecting 3D mask attacks to a face recognition system is challenging. Although genuine faces and 3D face masks show significantly different remote photoplethysmography (rPPG) signals, rPPG-based face anti-spoofing methods often suffer from…

Computer Vision and Pattern Recognition · Computer Science 2023-05-26 Chenglin Yao , Jianfeng Ren , Ruibin Bai , Heshan Du , Jiang Liu , Xudong Jiang

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

Recent advances in machine learning technology have enabled highly portable and performant models for many common tasks, especially in image recognition. One emerging field, 3D human pose recognition extrapolated from video, has now…

Artificial Intelligence · Computer Science 2022-03-24 Alex Moran , Bart Gebka , Joshua Goldshteyn , Autumn Beyer , Nathan Johnson , Alexander Neuwirth

Vital signs, such as heart rate (HR), heart rate variability (HRV), respiratory rate (RR), are important indicators for a person's health. Vital signs are traditionally measured with contact sensors, and may be inconvenient and cause…

Image and Video Processing · Electrical Eng. & Systems 2019-11-04 Mingliang Chen , Qiang Zhu , Harrison Zhang , Min Wu , Quanzeng Wang

Accurately monitoring cognitive load in real time is critical for Brain-Computer Interfaces (BCIs) that adapt to user engagement and support personalized learning. Electroencephalography (EEG) offers a non-invasive, cost-effective modality…

Human-Computer Interaction · Computer Science 2026-05-04 Deeksha M. Shama , Dimitra Emmanouilidou , Ivan J. Tashev

Optical flow techniques are becoming increasingly performant and robust when estimating motion in a scene, but their performance has yet to be proven in the area of facial expression recognition. In this work, a variety of optical flow…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Benjamin Allaert , Isaac Ronald Ward , Ioan Marius Bilasco , Chaabane Djeraba , Mohammed Bennamoun

Extracting physical dynamical system parameters from recorded observations is key in natural science. Current methods for automatic parameter estimation from video train supervised deep networks on large datasets. Such datasets require…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Alejandro Castañeda Garcia , Jan van Gemert , Daan Brinks , Nergis Tömen

Technological advancements have spurred the usage of machine learning based applications in sports science. Physiotherapists, sports coaches and athletes actively look to incorporate the latest technologies in order to further improve…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Ashish Singh , Antonio Bevilacqua , Thach Le Nguyen , Feiyan Hu , Kevin McGuinness , Martin OReilly , Darragh Whelan , Brian Caulfield , Georgiana Ifrim

Convolutional Architecture for Fast Feature Encoding (CAFFE) [11] is a software package for the training, classifying, and feature extraction of images. The UCF Sports Action dataset is a widely used machine learning dataset that has 200…

Computer Vision and Pattern Recognition · Computer Science 2015-12-24 J. T. Turner , David Aha , Leslie Smith , Kalyan Moy Gupta

Photoplethysmography is a non-invasive optical technique that measures changes in blood volume within tissues. It is commonly and increasingly used for in a variety of research and clinical application to assess vascular dynamics and…

Medical Physics · Physics 2023-09-26 Marton A. Goda , Peter H. Charlton , Joachim A. Behar

We present PiMForce, a novel framework that enhances hand pressure estimation by leveraging 3D hand posture information to augment forearm surface electromyography (sEMG) signals. Our approach utilizes detailed spatial information from 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Kyungjin Seo , Junghoon Seo , Hanseok Jeong , Sangpil Kim , Sang Ho Yoon

Fatigue is one of the key factors in the loss of work efficiency and health-related quality of life, and most fatigue assessment methods were based on self-reporting, which may suffer from many factors such as recall bias. To address this…

Machine Learning · Computer Science 2020-08-19 Yang Bai , Yu Guan , Wan-Fai Ng

This study employs cutting-edge wearable monitoring technology to conduct high-precision, high-temporal-resolution (1-second interval) cognitive load assessment on electroencephalogram (EEG) data from the FP1 channel and heart rate…

Human-Computer Interaction · Computer Science 2024-07-04 Ling He , Yanxin Chen , Wenqi Wang , Shuting He , Xiaoqiang Hu

In this paper we develop a robust for heart rate (HR) estimation method using face video for challenging scenarios with high variability sources such as head movement, illumination changes, vibration, blur, etc. Our method employs a quality…

Computer Vision and Pattern Recognition · Computer Science 2019-05-21 Javier Hernandez-Ortega , Shigenori Nagae , Julian Fierrez , Aythami Morales
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