Results 51 to 60 of about 1,600 (150)

Intelligent Supportive System for People with Profound Intellectual and Multiple Disabilities

Advanced Intelligent Systems, Volume 8, Issue 1, January 2026.
A holistic INSENSION system is developed—a novel intelligent decision support system leveraging state‐of‐the‐art noninvasive audio‐visual sensor technologies together with machine learning algorithms and expert knowledge, to detect and interpret behaviors and communications (nonverbal signals—NVSs) of people with PIMD in challenging real‐world ...
Gašper Slapničar, Michał Kosiedowski, Arkadiusz Radziuk, Erik Dovgan, Torsten Hammann, Meike Engelhardt, Christin Kupitz, Carmen Campomanes‐Alvarez, Dorota Janczewska, Peter Zentel, Mitja Luštrek   +10 more
wiley   +1 more source

Evaluation of recrosslinkable preformed particle gel (RPPG) as a fluid loss control material during drilling operations [PDF]

, 2022
One of the most intense, expensive, and time-consuming problems during drilling operations is the loss of circulation, which could result in several consequences, including wellbore collapse, fluid inflow, formation damage, environmental issues, and ...
Ahdaya, Mohamed Saad M.
core   +1 more source

Improved Remote Photoplethysmography Using Machine Learning-Based Filter Bank

Applied Sciences
Remote photoplethysmography (rPPG) is a non-contact technology that monitors heart activity by detecting subtle color changes within the facial blood vessels.
Jukyung Lee, Hyosung Joo, Jihwan Woo
doaj   +1 more source

Parameter‐Efficient Deep Learning Models for Vital Sign Estimation From PPG

Healthcare Technology Letters, Volume 13, Issue 1, January/December 2026.
This work introduces highly parameter‐efficient, fully convolutional deep learning models for end‐to‐end estimation of heart rate, blood oxygen saturation and respiratory rate directly from PPG signals. The compact models achieve strong cross‐dataset performance and are demonstrated to be practical for on‐device deployment on target devices.
Taha Samavati, Mahdi Farvardin, Aboozar Ghaffari   +2 more
wiley   +1 more source

Remote photoplethysmography with constrained ICA using periodicity and chrominance constraints

BioMedical Engineering OnLine, 2018
Background Remote photoplethysmography (rPPG) has been in the forefront recently for measuring cardiac pulse rates from live or recorded videos. It finds advantages in scenarios requiring remote monitoring, such as medicine and fitness, where contact ...
Richard Macwan, Yannick Benezeth, Alamin Mansouri   +2 more
doaj   +1 more source

Contactless facial video recording with deep learning models for the detection of atrial fibrillation

Scientific Reports, 2022
Atrial fibrillation (AF) is often asymptomatic and paroxysmal. Screening and monitoring are needed especially for people at high risk. This study sought to use camera-based remote photoplethysmography (rPPG) with a deep convolutional neural network (DCNN)
Yu Sun, Yin-Yin Yang, Bing-Jhang Wu, Po-Wei Huang, Shao-En Cheng, Bing-Fei Wu, Chun-Chang Chen   +6 more
doaj   +1 more source

Physiological Reality Verification for Secure Healthcare Multimedia Internet of Things Using Crossmodal Semantic Integrity Learning

International Journal of Distributed Sensor Networks, Volume 2026, Issue 1, 2026.
Modern healthcare multimedia Internet of Things (IoT) systems are systematically integrating face video, respiratory audio, and wearable physiological signals for remote clinical monitoring. However, this evidence can be replayed, spoofed, substituted, or temporally desynchronized before reaching clinical inference. To address these risks, we propose a
Krishna Prasad Satamraju, Mohammed Alojail, K. V. S. S. Ramakrishna, Marwah A. Halwani, Sibun Parida, Anchal Garg, Rahul Priyadarshi   +6 more
wiley   +1 more source

Contactless Measurement of Pulse Transit Time Between Upper Extremities During Simulated Stenosis

Current Directions in Biomedical Engineering
This paper proposes a novel approach for the noninvasive assessment of different degrees of stenosis by remote photoplethysmography (rPPG) using an RGB camera.
Tauber Samuel, Haendler Jakob, Wiede Christian, Seidl Karsten   +3 more
doaj   +1 more source

Advancing remote photoplethysmography (rPPG) to facilitate cardiac monitoring in naturalistic settings using webcam technology. [PDF]

Behav Res Methods
Remote photoplethysmography (rPPG) is a technique for the monitoring of cardiac signals using simple consumer-grade cameras, such as webcams. Its cost-effectiveness and accessibility make it a promising tool for widespread application, particularly in ...
Woelk SP, Garfinkel SN, Mayiwar L, Knöferle KM.   +3 more
europepmc   +2 more sources

Evaluation of the Relationship Between Facial Hue and Blood Pressure Fluctuations in Hemodialysis Patients

International Journal of Biomedical Imaging, Volume 2026, Issue 1, 2026.
Objective In hemodialysis, hypotension may occur due to fluid removal, but traditional intermittent blood pressure measurements risk missing its onset. We are aimed to enabling noninvasive and continuous blood pressure monitoring in patients undergoing hemodialysis based on the spatial features of facial visible images.
Kosuke Oiwa, Takehiro Okama, Satoshi Suzuki, Yoshitaka Maeda, Akio Nozawa, Sohini Basu Roy   +5 more
wiley   +1 more source