Results 71 to 80 of about 830,623 (154)

Exploring remote photoplethysmography signals for deepfake detection in facial videos [PDF]

, 2023
. With the advent of deep learning-based facial forgeries, also called "deepfakes", the feld of accurately detecting forged videos has become a quickly growing area of research.
Luukkonen, A. (Antti)
core  

Multiwavelength Implantable Oximeter for Wireless Monitoring of Tissue Oxygenation in the Presence of Blood Volume Changes

Advanced Healthcare Materials, Volume 15, Issue 35, 18 September 2026.
This study presents an implantable, wireless, battery‐free oximeter that can continuously monitor physiologically consistent regional tissue oxygenation under dynamic changes of blood volume. This is achieved through multiwavelength photoplethysmography and validated both via Monte Carlo simulations and in vivo rat studies. Different stress events were
Anat Usatinsky, Hugo L. Higueros‐Garcia, Sadi Loai, Samantha Unger, Jacob Trueb, Yonatan Usatinsky, Rawad Alkallas‐Valdiviezo, Noor Abu Jarad, Jonathan Wu, Hai‐Ling M. Cheng, John A. Rogers, Abraham Vázquez‐Guardado, Daniel Franklin   +12 more
wiley   +1 more source

Local blood flow analysis and visualization from RGB-video sequences

Current Directions in Biomedical Engineering, 2019
The extraction of heart rate and other vital parameters from video recordings of a person has attracted much attention over the last years. In this paper, we examine time differences between distinct spatial regions using remote photoplethysmography ...
Kossack Benjamin, Wisotzky Eric L., Hilsmann Anna, Eisert Peter, Hänsch Ronny   +4 more
doaj   +1 more source

Toward a New Generation of AI‐Enabled Wearable Sensors

Rare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Wearable sensors have emerged as important platforms for noninvasive, real‐time, and continuous monitoring of physiological information, with growing applications in personalized healthcare, human‐machine interfaces (HMIs), and robotic empowerment.
Tianqi Yang, Hang Zhu, Zhihui Pan, Jiawei Yang, Yi Liu, Wenqing Yan, Hossam Haick, Yan Wang   +7 more
wiley   +1 more source

Recent advancements in deep learning-based remote photoplethysmography methods

Health monitoring of an individual is guided by physiological parameters that can be estimated by a photoplethysmography signal using contact-based or contactless approaches. Contactless monitoring, being more advantageous than the contact-based approach,
Ravelo-García, Antonio G., Gupta, Ankit, Morgado-Dias, Fernando   +2 more
core   +1 more source

Defect‐Healed Perovskite Quantum Dots for Optoelectronic Applications in Indoor Photovoltaics and Photoplethysmography

Small, Volume 22, Issue 50, 7 September 2026.
A novel dispersion‐phase defect‐healing strategy using Br‐doped PbS quantum dots (QDs) significantly stabilizes CsPbI3 perovskite (Pe) QDs by passivating internal vacancies. This approach reduces trap‐assisted nonradiative recombination, enabling high‐performance indoor photovoltaics with exceptional stability.
Seon Joong Kim, Junhyeok Park, Byung Ku Jung, Ohhyun Kwon, Sang Heon Lee, Hyung Jin Choi, Seongyong Hong, Min Jong Lee, Soong Ju Oh, Jae Won Shim   +9 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

Multi‐Modal AI Approach in Depression Detection and Treatment: A Systematic Review of Last Decade

WIREs Data Mining and Knowledge Discovery, Volume 16, Issue 3, September 2026.
Overview of multimodal approaches for depression detection and treatment. ABSTRACT Depression is a common and devastating mental health illness with serious personal and societal consequences. Despite advancing treatment techniques, there are still hurdles in the effective diagnosis and treatment of depression, such as prompt diagnosis, personalized ...
Smith K. Khare, Esmaeil S. Nadimi, U. Rajendra Acharya, Victoria Blanes‐Vidal   +3 more
wiley   +1 more source

Measuring stabilized heart rates in the prairie lizard, a small vertebrate ectotherm

Methods in Ecology and Evolution, Volume 17, Issue 9, Page 2594-2602, September 2026.
Abstract The ability to accurately measure heart rates is vital for studying the ecological and evolutionary pressures on animals because cardiovascular regulation is associated with key physiological responses to environmental change. Heart rates, especially in ectotherms, are influenced by multiple factors over both the short and long term, including
Owen Conroy, Brandon Wolfsohn, Garret Peterson, Tiffany Hegdahl, Travis R. Robbins   +4 more
wiley   +1 more source

Effects of Missing Data on Heart Rate Variability Measured From A Smartwatch: Exploratory Observational Study

JMIR Formative Research
BackgroundMeasuring heart rate variability (HRV) through wearable photoplethysmography sensors from smartwatches is gaining popularity for monitoring many health conditions.
Hope Davis-Wilson, Meghan Hegarty-Craver, Pooja Gaur, Matthew Boyce, Jonathan R Holt, Edward Preble, Randall Eckhoff, Lei Li, Howard Walls, David Dausch, Dorota Temple   +10 more
doaj   +1 more source