Results 41 to 50 of about 1,600 (150)

Monitoring and assessment for obstructive sleep apnea

FlexMat, EarlyView.
This review systematically classifies Obstructive Sleep Apnea (OSA) monitoring indicators into three categories: physical, biochemical, and electrophysiological indicators, and lists several methods for each category. Abstract Obstructive sleep apnea (OSA) is a common chronic sleep‐disordered breathing disease characterized by recurrent upper airway ...
Yaowen Xu, Feifei Lin, Shujiao Chen, Zhen You, Shujing Zhu, Weiwei Zhao, Qiang Zhao   +6 more
wiley   +1 more source

Identity-Privacy Protection for Facial-rPPG Based Smart Health Research

, 2022
Camera-based remote photoplethysmography (rPPG) technology has shown a promising future in contact-free cardiac and other smart health applications.
Min Wu (10726572), Mingliang Chen (10850385), Min Wu, Chau-Wai Wong (11990147), Chau-Wai Wong, Ashira Jayaweera, Mingliang Chen, Ashira Jayaweera (13133446)   +7 more
core   +1 more source

rPPG-Guided Multi-Task Cascaded Learning for Joint Heart Rate and SpO₂ Estimation

IEEE Access
Remote physiological sensing from facial videos enables contact-free health monitoring. Despite remarkable advances in deep learning-based rPPG and heart rate estimation, video-based SpO2 measurement remains challenging due to weak RGB spectral cues and ...
Junhui Li, Xuli Jiang, Xiaoguang Tu, Yuan Gao, Hongyang Huang   +4 more
doaj   +1 more source

Photoplethysmography for Measuring Cognitive Load in XR Environments: A Systematic Review

Advanced Sensor Research, Volume 5, Issue 3, March 2026.
ABSTRACT Photoplethysmography (PPG) is a low‐cost, low‐power biosensing technology with growing applications in education, particularly for monitoring cognitive load in eXtended Reality (XR) learning environments. Measuring cognitive load is critical for preventing overload and optimising immersive learning, yet existing approaches such as self‐reports
Alya Alshehhi, Qammer H.Abbasi, Rami Ghannam   +2 more
wiley   +1 more source

Public Benchmark Dataset for Testing rPPG Algorithm Performance

, 2020
The current needs in remote photoplethysmography (rPPG) research were investigated and it was concluded there is a lack of reproducibility and comparability in the current rPPG research.
Hoffman, Wouter, Human Technology Interaction, Lakens, Daniël; id_orcid, Industrial Engineering and Innovation Sciences   +3 more
core   +1 more source

A real-time rPPG signal extraction method based on face detection and tracking and input noise filtering

Dianzi Jishu Yingyong
Remote photoplethysmography (rPPG) is an important research direction in the field of non-contact physiological signal detection. Existing algorithms primarily extract pulse signals from specific facial regions, which results in incomplete signal ...
Hao Zhuangyuan, Tian Kun, Wu Shuncheng, Tan Kun, Li Jian, Gao Dashuai   +5 more
doaj   +1 more source

Breaker evaluation and formation damage remediation of re-crosslinkable preformed particle gel (RPPG) [PDF]

, 2019
Re-crosslinkable preformed particle gel (RPPG) is a newly developed preformed particle gel for improving sweep efficiency and oil recovery by blocking or reducing the conductivity of fractures and fracture-like channels or conduits. However, RPPG has the
Zhou, Enze
core   +1 more source

A Deep Neural Network Based on Two‐Stage Training for Estimating Heart Rate Variability From Camera Videos

Health Care Science, Volume 5, Issue 1, Page 74-84, February 2026.
Heart Rate Variability Estimation from Camera Videos ABSTRACT Background Studies have shown that heart rate variability (HRV) is a predictor of the prognosis of cardiovascular diseases. Contact heartbeat monitoring equipment is widely used, especially in hospitals, and benefits from the rapidity and accuracy of the detection of physiological health ...
Lan Lan, Jin Yin, Haohan Zhang, Hua Jiang, Rui Qin, Xia Zhao, Yu Zhang, Yilong Wang, Jiajun Qiu   +8 more
wiley   +1 more source

Can we generate real faces from rPPG signals? Probably not [PDF]

The potential of generating authentic human facial images from remote photo-plethysmography (rPPG) signals is a compelling idea, with significant implications for biometric authentication and human-computer interaction.
López, Miguel Bordallo, Li, Honghan, Nguyen, Nhi, Casado, Constantino Álvarez, Wu, Xiaoting   +4 more
core   +2 more sources

Asset Pricing and Risk‐Sharing Implications of Alternative Pension Plan Systems

The Journal of Finance, Volume 81, Issue 1, Page 143-188, February 2026.
ABSTRACT We show that incorporating defined benefit pension funds in an incomplete markets asset pricing model improves its ability to match the historical equity premium and riskless rate and has important risk‐sharing implications. We document the importance of the pension fund's size and asset demands, and a new risk channel arising from ...
NUNO COIMBRA, FRANCISCO GOMES, ALEXANDER MICHAELIDES, JIALU SHEN   +3 more
wiley   +1 more source