Results 91 to 100 of about 3,566 (223)

Contactless Health Monitoring: An Overview of Video‐Based Techniques Utilising Machine/Deep Learning

IET Wireless Sensor Systems, Volume 15, Issue 1, January/December 2025.
This review article presents a comprehensive examination of contactless health monitoring techniques utilising machine learning (ML) and deep learning (DL) algorithms for the assessment of critical vital signs. ABSTRACT Vital signs are crucial indicators of an individual's physiological well‐being and represent one of the primary evaluations conducted ...
Alaa Hajr, Bahram Tarvirdizadeh, Khalil Alipour, Mohammad Ghamari   +3 more
wiley   +1 more source

Determining the minimal important change of the recap of atopic eczema (RECAP) instrument in clinical trials

Skin Health and Disease, Volume 4, Issue 6, December 2024.
Abstract Background The Recap of atopic eczema (RECAP) is a patient‐reported instrument designed to assess eczema control. There is a lack of evidence on the interpretability of change scores in clinical trials. Objectives To calculate the smallest detectable change (SDC) in RECAP and estimate the minimal important change (MIC) for RECAP using various ...
Arabella Baker, Beth Stuart, Laura Howells, Eleanor J. Mitchell, Kim S. Thomas   +4 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

A Comprehensive Review of Deepfake Detection Techniques Utilizing Remote Photoplethysmography

IEEE Access
Deepfake technology enables the creation of highly realistic but fabricated videos, raising significant concerns about the authenticity and reliability of digital media.
Kavya Sree Kammari, Manju Khanna, Yasasree Lasya Annambhotla, Keerthi Devarajan Anuradha, Poosarla Naga Suryapadma Namrata, K. V. Nagaraja, T. V. Smitha, Tony Jan, Ganesh R. Naik   +8 more
doaj   +1 more source

The angular momentum of two collided rarefied preplanetesimals and the formation of binaries

, 2009
This paper studies the mean angular momentum associated with the collision of two celestial objects in the earliest stages of planet formation. Of primary concern is the scenario of two rarefied preplanetesimals (RPPs) in circular heliocentric orbits ...
Alexander, Astakhov, Benecchi, Canup, Cuzzi, Davis, Descamps, Doressoundiram, Durda, Eneev, Eneev, Funato, Giuli, Goldreich, Goldreich, Gorkavyi, Greenzweig, Ida, Ipatov, Ipatov, Ipatov, Ipatov, Ipatov, Ipatov, Ipatov, Iwasaki, Johansen, Johansen, Kenyon, Kenyon, Lissauer, Lyra, Makalkin, Morbidelli, Myasnikov, Myasnikov, Nesvorny, Noll, Noll, Ohtsuki, Pechernikova, Petit, Pravec, Richardson, S. I. Ipatov, Safronov, Safronov, Safronov, Scheeres, Stern, Walsh, Walsh, Weidenschilling, Weidenschilling, Woolson, Ćuk   +55 more
core   +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

Should left‐ and right‐sided unilateral cleft lip and palate patients be grouped together when reporting the outcomes?

Orthodontics &Craniofacial Research, Volume 27, Issue S1, Page 49-61, June 2024.
Abstract Objectives Investigate associations between cleft laterality in patients with non‐syndromic unilateral cleft lip and palate (UCLP) and oral‐health, dental‐arch, speech, audiological, psychological and nasolabial‐aesthetic outcomes. Methods Secondary data analysis of the outcomes of 5‐year‐old children with non‐syndromic complete UCLP ...
Manar Al‐Hassani, Peter Fowler, Yvonne Wren, Sam Leary, Amy Davies   +4 more
wiley   +1 more source

A Wearable Bracelet for Simultaneous Monitoring of Transcutaneous Carbon Dioxide and Pulse Rates

Advanced Electronic Materials, Volume 10, Issue 5, May 2024.
This study introduces a wearable bracelet that simultaneously detects transcutaneous carbon dioxide and pulse rate, which serves as crucial biochemical and biophysical signals for chronic disease patients. The wearable bracelet exhibits exceptional sensitivity, selectivity, and anti‐humidity interference.
Yaoxuan Cui, Qingpeng Cao, Xubin Zheng, Hao Dong, Jin Wang, Feng Xu, Libin Qian, Di Wang   +7 more
wiley   +1 more source

Facial and Neck Region Analysis for Deepfake Detection Using Remote Photoplethysmography Signal Similarity

IET Biometrics, Volume 2024, Issue 1, 2024.
Deepfake (DF) involves utilizing artificial intelligence (AI) technology to synthesize or manipulate images, voices, and other human or object data. However, recent times have seen a surge in instances of DF technology misuse, raising concerns about cybercrime and the credibility of manipulated information.
Byeong Seon An, Hyeji Lim, Hyeon Ah Seong, Eui Chul Lee, Jun Wan   +4 more
wiley   +1 more source

RhythmFormer: Extracting patterned rPPG signals based on periodic sparse attention

Pattern Recognition
Remote photoplethysmography (rPPG) is a non-contact method for detecting physiological signals based on facial videos, holding high potential in various applications. Due to the periodicity nature of rPPG signals, the long-range dependency capturing capacity of the transformer was assumed to be advantageous for such signals.
Bochao Zou, Zizheng Guo, Jiansheng Chen, Junbao Zhuo, Weiran Huang, Huimin Ma   +5 more
openaire   +2 more sources