Results 21 to 30 of about 2,568 (189)
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
Pulse Rate Variability Analysis Using Remote Photoplethysmography Signals
Sensors, 2021 Pulse rate variability (PRV) refers to the change in the interval between pulses in the blood volume pulse (BVP) signal acquired using photoplethysmography (PPG). PRV is an indicator of the health status of an individual’s autonomic nervous system.
Su-Gyeong Yu +4 more
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
Current Directions in Biomedical Engineering, 2021 To engage in socio-emotional interactions, children with autism spectrum conditions (ASC) need support to understand and convey emotions. In our approach, a humanoid robot (Pepper, Softbanks Robotics) acts as a tutor for the child within autism care. The
Lang Nadine +10 more
doaj +1 more source
rPPG-Toolbox: Deep Remote PPG Toolbox
, 2022 Camera-based physiological measurement is a fast growing field of computer vision. Remote photoplethysmography (rPPG) utilizes imaging devices (e.g., cameras) to measure the peripheral blood volume pulse (BVP) via photoplethysmography, and enables cardiac measurement via webcams and smartphones.
Liu, Xin +9 more
openaire +2 more sources
Noise-Assessment-Based Screening Method for Remote Photoplethysmography Estimation
Applied Sciences, 2023 Remote vital signal estimation has been researched for several years. There are numerous studies on rPPG, which utilizes cameras to detect cardiovascular activity. Most of the research has concentrated on obtaining rPPG from a complete video.
Kunyoung Lee +5 more
doaj +1 more source
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
Mask Attack Detection Using Vascular-Weighted Motion-Robust rPPG Signals
IEEE Transactions on Information Forensics and Security, 2023 Detecting 3D mask attacks to a face recognition system is challenging. Although genuine faces and 3D face masks show significantly different remote photoplethysmography (rPPG) signals, rPPG-based face anti-spoofing methods often suffer from performance degradation due to unstable face alignment in the video sequence and weak rPPG signals.
Chenglin Yao +5 more
openaire +2 more sources
Critical properties of the four-state Commutative Random Permutation Glassy Potts model in three and four dimensions [PDF]
, 2008 We investigate the critical properties of the four-state commutative random permutation glassy Potts model in three and four dimensions by means of Monte Carlo simulation and of a finite size scaling analysis.
A. Maiorano +15 more
core +3 more sources
Remote photoplethysmography (rPPG) in the wild: Remote heart rate imaging via online webcams.
Behavior Research Methods, 2022 Remote photoplethysmography (rPPG) is a low-cost technique to measure physiological parameters such as heart rate by analyzing videos of a person. There has been growing attention to this technique due to the increased possibilities and demand for running psychological experiments on online platforms.
Daniele Di Lernia +4 more
openaire +6 more sources