Results 21 to 30 of about 3,566 (223)

Semi-rPPG: Semi-Supervised Remote Physiological Measurement With Curriculum Pseudo-Labeling

open access: yesIEEE Transactions on Instrumentation and Measurement
Remote 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.
Bingjie Wu   +6 more
semanticscholar   +3 more sources

LieRHRV system for remote lie detection using heart rate variability parameters [PDF]

open access: yesScientific Reports
The standard polygraph, or lie detector, is limited by its reliance on average heart rate, subjective examiner interpretation, and the need for direct subject contact.
Moran Davoodi   +4 more
doaj   +2 more sources

Periodic-MAE: Periodic Video Masked Autoencoder for rPPG Estimation

open access: yesarXiv.org
In this paper, we propose a method that learns a general representation of periodic signals from unlabeled facial videos by capturing subtle changes in skin tone over time.
Jiho Choi, Sang Jun Lee
semanticscholar   +3 more sources

Assessment of ROI Selection for Facial Video-Based rPPG [PDF]

open access: yesSensors, 2021
In general, facial image-based remote photoplethysmography (rPPG) methods use color-based and patch-based region-of-interest (ROI) selection methods to estimate the blood volume pulse (BVP) and beats per minute (BPM). Anatomically, the thickness of the skin is not uniform in all areas of the face, so the same diffuse reflection information cannot be ...
Dae-Yeol Kim   +2 more
openaire   +3 more sources

GRGB rPPG: An Efficient Low-Complexity Remote Photoplethysmography-Based Algorithm for Heart Rate Estimation

open access: yesBioengineering, 2023
Remote photoplethysmography (rPPG) is a promising contactless technology that uses videos of faces to extract health parameters, such as heart rate. Several methods for transforming red, green, and blue (RGB) video signals into rPPG signals have been ...
Fridolin Haugg   +2 more
doaj   +1 more source

Camera-Derived Photoplethysmography (rPPG) and Speckle Plethysmography (rSPG): Comparing Reflective and Transmissive Mode at Various Integration Times Using LEDs and Lasers

open access: yesSensors, 2022
Background: Although both speckle plethysmography (SPG) and photoplethysmography (PPG) examine pulsatile changes in the vasculature using opto-electronics, PPG has a long history, whereas SPG is relatively new and less explored. The aim of this study was
Jorge Herranz Olazábal   +3 more
doaj   +1 more source

Psychodrame pluriel, alcoolismes singuliers [PDF]

open access: yes, 2012
International audienceCe travail est issu d’une pratique hebdomadaire du psychodrame de groupe en centre d’addictologie avec comme projet de penser la relation thérapeutique à partir du passage du singulier au collectif.
Gimenez, Guy, Poupard, Guillaume
core   +16 more sources

Performance Evaluation of rPPG Approaches with and without the Region-of-Interest Localization Step

open access: yesApplied Sciences, 2021
Traditionally, the first step in physiological measurements based on remote photoplethysmography (rPPG) is localizing the region of interest (ROI) that contains a desired pulsatile information. Recently, approaches that do not require this step have been
Žan Pirnar   +2 more
doaj   +1 more source

Evaluation of biases in remote photoplethysmography methods

open access: yesnpj Digital Medicine, 2021
This work investigates the estimation biases of remote photoplethysmography (rPPG) methods for pulse rate measurement across diverse demographics.
Ananyananda Dasari   +3 more
doaj   +1 more source

A Comparative Evaluation of Heart Rate Estimation Methods using Face Videos [PDF]

open access: yes, 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

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