A comprehensive survey on automatic facial action unit analysis

R Zhi, M Liu, D Zhang - The Visual Computer, 2020 - Springer
Abstract Facial Action Coding System is the most influential sign judgment method for facial
behavior, and it is a comprehensive and anatomical system which could encode various …

Non-invasive detection of mental fatigue in construction equipment operators through geometric measurements of facial features

I Mehmood, H Li, W Umer, J Ma, MS Shakeel… - Journal of safety …, 2024 - Elsevier
Introduction: Prolonged operation of construction equipment could lead to mental fatigue,
which can increase the chances of human error-related accidents as well as operators' ill …

Facial action unit detection and intensity estimation from self-supervised representation

B Ma, R An, W Zhang, Y Ding, Z Zhao… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
As a fine-grained and local expression behavior measurement, facial action unit (FAU)
analysis (eg, detection and intensity estimation) has been documented for its time …

Game-calibrated and user-tailored remote detection of stress and boredom in games

F Bevilacqua, H Engström, P Backlund - Sensors, 2019 - mdpi.com
Emotion detection based on computer vision and remote extraction of user signals
commonly rely on stimuli where users have a passive role with limited possibilities for …

Changes in heart rate and facial actions during a gaming session with provoked boredom and stress

F Bevilacqua, H Engström, P Backlund - Entertainment Computing, 2018 - Elsevier
This paper presents an experiment aimed at exploring the relation between facial actions
(FA), heart rate (HR) and emotional states, particularly stress and boredom, during the …

Automated analysis of facial cues from videos as a potential method for differentiating stress and boredom of players in games

F Bevilacqua, H Engström… - International Journal of …, 2018 - Wiley Online Library
Facial analysis is a promising approach to detect emotions of players unobtrusively;
however approaches are commonly evaluated in contexts not related to games or facial …

Game-calibrated and user-tailored remote detection of emotions: A non-intrusive, multifactorial camera-based approach for detecting stress and boredom of players in …

F Bevilacqua - 2018 - diva-portal.org
Questionnaires and physiological measurements are the most common approach used to
obtain data for emotion estimation in the field of human-computer interaction (HCI) and …

Stress Detection in Video Feed: Utilizing Facial Action Units as Indicators in Various Machine Learning Algorithms

RG Llanes, R Reyes - 2022 IEEE 4th Eurasia Conference on …, 2022 - ieeexplore.ieee.org
Stress has always been present in our daily lives. This has and always been essential in
helping us grow. Yet, once stress becomes too much to handle and exhausts an individual …

Automated and non-invasive mental fatigue assessment of construction equipment operators

I Mehmood - 2024 - theses.lib.polyu.edu.hk
The construction industry plays a vital role in enhancing and advancing the infrastructure,
contributing significantly to its development. However, at the same time it is labour-intensive …

Accuracy Evaluation of Remote Photoplethysmography Estimations of Heart Rate in Gaming Sessions with Natural Behavior

F Bevilacqua, H Engström, P Backlund - International Conference on …, 2017 - Springer
Remote photoplethysmography (rPPG) can be used to remotely estimate heart rate (HR) of
users to infer their emotional state. However natural body movement and facial actions of …