Results 21 to 30 of about 1,361 (180)
Effects of illuminance intensity on the green channel of remote photoplethysmography (rPPG) signals [PDF]
Physical and Engineering Sciences in Medicine, 2022 Point-of-care remote photoplethysmography (rPPG) devices that utilize low-cost RGB cameras have drawn considerable attention due to their convenience in contactless and non-invasive vital signs monitoring. In rPPG, sufficient lighting conditions are essential for obtaining accurate diagnostics by observing the complete signal morphology. The effects of
Güler, Saygun +4 more
openaire +3 more sources
Informatics, 2022 Over the last few years, a rich amount of research has been conducted on remote vital sign monitoring of the human body. Remote photoplethysmography (rPPG) is a camera-based, unobtrusive technology that allows continuous monitoring of changes in vital ...
Smera Premkumar, Duraisamy Jude Hemanth
doaj +1 more source
Perfusion assessment via local remote photoplethysmography (rPPG)
2022 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), 2022 This paper presents an approach to assess the perfusion of visible human tissue from RGB video files. We propose metrics derived from remote photoplethysmography (rPPG) signals to detect whether a tissue is adequately supplied with blood. The perfusion analysis is done in three different scales, offering a flexible approach for different applications ...
Kossack, Benjamin +5 more
openaire +2 more sources
Optimal digital filter selection for remote photoplethysmography (rPPG) signal conditioning
Biomedical Physics & Engineering Express, 2023 Abstract Remote photoplethysmography (rPPG) using camera-based imaging has shown excellent potential recently in vital signs monitoring due to its contactless nature. However, the optimum filter selection for pre-processing rPPG data in signal conditioning is still not straightforward.
Saygun Guler +4 more
openaire +3 more sources
On Using rPPG Signals for DeepFake Detection: A Cautionary Note [PDF]
, 2023 An experimental analysis is proposed concerning the use of physiological signals, specifically remote Photoplethysmography (rPPG), as a potential means for detecting Deepfakes (DF). The study investigates the effects of different variables, such as video
Boccignone G. +6 more
core +4 more sources
Evaluating RGB channels in remote photoplethysmography: a comparative study with contact-based PPG
Frontiers in Physiology, 2023 Remote photoplethysmography (rPPG) provides a non-contact method for measuring blood volume changes. In this study, we compared rPPG signals obtained from video cameras with traditional contact-based photoplethysmography (cPPG) to assess the ...
Rodrigo Castellano Ontiveros +5 more
doaj +1 more source
Deep learning-based remote-photoplethysmography measurement from short-time facial video [PDF]
, 2022 Objective: Efficient non-contact heart rate (HR) measurement from facial video has received much attention in health monitoring. Past methods relied on prior knowledge and an unproven hypothesis to extract remote photoplethysmography (rPPG) signals, e.g.
Jiang, Wei +3 more
core +1 more source
A Comparative Evaluation of Heart Rate Estimation Methods using Face Videos [PDF]
, 2020 This paper presents a comparative evaluation of methods for remote heart rate estimation using face videos, i.e., given a video sequence of the face as input, methods to process it to obtain a robust estimation of the subjects heart rate at each moment ...
Diaz, David +3 more
core +1 more source
Analisis Photoplethysmography Jarak Jauh dalam berbagai Kondisi Pencahayaan [PDF]
, 2022 Photoplethysmography (PPG) konvensional untuk mengukur kecepatan jantung memiliki keterbatasan tersendiri, salah satunya yaitu diperlukannya kontak langsung dengan bagian tubuh pasien.
Babgei, Atar Fuady +2 more
core +3 more sources
Advanced Intelligent Systems, Volume 5, Issue 9, September 2023., 2023 Optical imaging techniques are widely used for non‐contact vital signal measurement. In this review, we discuss the principles, analysis methods, pros and cons, latest applications and future prospects of various optical imaging techniques for non‐contact vital signal measurement. In recent years, optical imaging techniques have gained wide recognition
Xinxin Zhang +4 more
wiley +1 more source