Results 101 to 110 of about 2,649 (198)
rePPG: Relighting Photoplethysmography Signal to Video
BiomimeticsRemote photoplethysmography (rPPG) extracts physiological signals from facial videos by analyzing subtle skin color variations caused by blood flow. While this technology enables contactless health monitoring, it also raises privacy concerns because ...
Seunghyun Kim +3 more
doaj +1 more source
Biometric Authentication Based on Enhanced Remote Photoplethysmography Signal Morphology [PDF]
Remote photoplethysmography (rPPG) is a non-contact method for measuring cardiac signals from facial videos, offering a convenient alternative to contact photoplethysmography (cPPG) obtained from contact sensors.
Komulainen, Jukka +3 more
core +1 more source
Una Formulación sencilla, cuantitativa y precisa para el principio de Le Chatelier [PDF]
, 1996 In this paper it is presented an alternative teaching approach to avoid the ordinary Le Chateliers qualitative rule. This attempt is based on a well-founded general criterion of spontaneity. Hence, we endeavor an analysis of the different cases involving
Quílez Pardo, Juan +1 more
core +1 more source
Communications MedicineBackground Advancements in health monitoring technologies are increasingly relying on capturing heart signals from video, a method known as remote photoplethysmography (rPPG). This study aims to enhance the accuracy of rPPG signals using a novel computer
Rodrigo Castellano Ontiveros +2 more
doaj +1 more source
A Flexible Framework for Design and Validation of rPPG Methods
IEEE AccessOver the past decade, Remote Photoplethysmography (rPPG) has emerged as an unobtrusive alternative to wearable sensors for measuring physiological signals, such as heart rate.
Ilyas Dawoodjee, Ali Ghahramani
doaj +1 more source
High-quality deepfakes have a heart!
Frontiers in ImagingIntroductionDeepfakes have become ubiquitous in our modern society, with both their quantity and quality increasing. The current evolution of image generation techniques makes the detection of manipulated content through visual inspection increasingly ...
Clemens Seibold +8 more
doaj +1 more source
Semi-rPPG: Semi-Supervised Remote Physiological Measurement With Curriculum Pseudo-Labeling
IEEE Transactions on Instrumentation and MeasurementRemote Photoplethysmography (rPPG) is a promising technique to monitor physiological signals such as heart rate from facial videos. However, the labeled facial videos in this research are challenging to collect. Current rPPG research is mainly based on several small public datasets collected in simple environments, which limits the generalization and ...
Bingjie Wu +6 more
openaire +2 more sources
IEEE AccessAdvanced technologies, notably camera-based systems using remote photoplethysmography (rPPG), are increasingly used in automotive safety to non-invasively monitor driver well-being and fatigue by measuring physiological metrics like heart and respiration
Soha G. Ahmed +5 more
doaj +1 more source
Growth oriented adjustment programs : a statistical analysis [PDF]
After the fall in average per capita GDP growth that took place in the 1980s, adjustment lending programs supported by the International Monetary Fund (IMF) and the World Bank (WB) were launched in response to the deteriorating external environment.
de Melo, Jaime +3 more
core
Heart Rate Estimation Algorithm Integrating Long and Short-Term Temporal Features
MathematicsNon-contact heart rate monitoring from facial videos utilizing remote photoplethysmography (rPPG) has gained significant traction in remote health monitoring.
Jie Sun +4 more
doaj +1 more source