Results 31 to 40 of about 25,281 (243)
Holographic laser Doppler imaging of pulsatile blood flow [PDF]
, 2015 We report on wide-field imaging of pulsatile motion induced by blood flow using heterodyne holographic interferometry on the thumb of a healthy volunteer, in real-time.
Atlan, Michael +4 more
core +5 more sources
Photoplethysmography Detection of Overreaching
Medicine & Science in Sports & Exercise, 2019 ABSTRACT Introduction Detecting the onset of functional overreaching (FOR) or nonfunctional overreaching in endurance athletes is of prior importance to ensure reactive amendment of the scheduled training program. The objective of this study was to assess photoplethysmography (PPG) in overloaded athletes and test ...
Nicolas, Bourdillon +2 more
openaire +3 more sources
Cuff-Less Methods for Blood Pressure Telemonitoring. [PDF]
, 2019 Blood pressure telemonitoring (BPT) is a telemedicine strategy that uses a patient\u27s self-measured blood pressure (BP) and transmits this information to healthcare providers, typically over the internet.
Bard, Dylan M. +2 more
core +2 more sources
The 2023 wearable photoplethysmography roadmap
Physiological Measurement, 2023 Abstract Photoplethysmography is a key sensing technology which is used in wearable devices such as smartwatches and fitness trackers. Currently, photoplethysmography sensors are used to monitor physiological parameters including heart rate and heart rhythm, and to track activities like sleep and exercise.
Charlton, Peter H +50 more
openaire +6 more sources
Contact Surface Area: A Novel Signal for Heart Rate Estimation in Smartphone Videos
, 2019 We consider the problem of smartphone video-based heart rate estimation, which typically relies on measuring the green color intensity of the user's skin.
Fridovich-Keil, Sara, Ramadge, Peter J.
core +1 more source
Review of deep learning methods for imaging photoplethysmography data processing
Научно-технический вестник информационных технологий, механики и оптикиThis paper presents a review of contemporary deep learning methods for processing remote photoplethysmography data. Architectures of convolutional neural networks, transformers, recurrent, and generative models are examined for video signal preprocessing
I. M. Rubin, M. A. Volynsky
doaj +1 more source
Актуальные проблемы теоретической и клинической медициныIntroduction. This literature review focuses on modern methods for assessing cardiovascular risk using photoplethysmography and heart rate variability.
B. А. Bugibayeva +5 more
doaj +1 more source
, 2015 Goal: A new method for heart rate monitoring using photoplethysmography (PPG) during physical activities is proposed. Methods: It jointly estimates spectra of PPG signals and simultaneous acceleration signals, utilizing the multiple measurement vector ...
Zhang, Zhilin
core +1 more source
Systems and methods for physiological signal enhancement and biometric extraction using non-invasive optical sensors [PDF]
, 2018 A system and method for signal processing to remove unwanted noise components including: (i) wavelength-independent motion artifacts such as tissue, bone and skin effects, and (ii) wavelength-dependent motion artifact/noise components such as venous ...
Nourani, Mehrdad, Yousefi, Rasoul
core +1 more source
Multimodal Wearable Biosensing Meets Multidomain AI: A Pathway to Decentralized Healthcare
Advanced Science, EarlyView.Multimodal biosensing meets multidomain AI. Wearable biosensors capture complementary biochemical and physiological signals, while cross‐device, population‐aware learning aligns noisy, heterogeneous streams. This Review distills key sensing modalities, fusion and calibration strategies, and privacy‐preserving deployment pathways that transform ...
Chenshu Liu +10 more
wiley +1 more source