Results 11 to 20 of about 1,347,504 (284)

Wrist Photoplethysmography Signal Quality Assessment for Reliable Heart Rate Estimate and Morphological Analysis [PDF]

Sensors, 2022
Photoplethysmographic (PPG) signals are mainly employed for heart rate estimation but are also fascinating candidates in the search for cardiovascular biomarkers.
Serena Moscato, Stella Lo Giudice, Giulia Massaro, Lorenzo Chiari   +3 more
doaj   +2 more sources

Introduction to electrocardiogram signal quality assessment and estimated accuracy for textile electrodes [PDF]

Scientific Reports
As the use of wearable electrocardiogram (ECG) data for modeling purposes continues to rise, there is a pressing need for signal quality assessment (SQA) algorithms capable of identifying segments of signal from which reliable data can be obtained ...
Neusa R. Adão Martins, Frederik Bauer, Florent Baty, Maximilian Boesch, Martin H. Brutsche, René M. Rossi, Simon Annaheim   +6 more
doaj   +2 more sources

Signal quality assessment of retinal optical coherence tomography images. [PDF]

Invest Ophthalmol Vis Sci, 2012
The purpose of this article was to assess signal quality of retinal optical coherence tomography (OCT) images from multiple devices using subjective and quantitative measurements.A total of 120 multiframe OCT images from 4 spectral domain OCT devices (Cirrus, RTVue, Spectralis, and 3D OCT-1000) were evaluated subjectively by trained graders, and ...
Huang Y, Gangaputra S, Lee KE, Narkar AR, Klein R, Klein BE, Meuer SM, Danis RP.   +7 more
europepmc   +4 more sources

Comparison of Supervised Learning Algorithms for Quality Assessment of Wearable Electrocardiograms With Paroxysmal Atrial Fibrillation

IEEE Access, 2023
Emerging wearable technology able to monitor electrocardiogram (ECG) continuously for long periods of time without disrupting the patient’s daily life represents a great opportunity to improve suboptimal current diagnosis of paroxysmal atrial ...
Alvaro Huerta, Arturo Martinez, Davide Carneiro, Vicente Bertomeu-Gonzalez, Jose J. Rieta, Raul Alcaraz   +5 more
doaj   +1 more source

Detection of Atrial Fibrillation in Compressively Sensed Electrocardiogram for Remote Monitoring

Frontiers in Electronics, 2022
The objective of this paper is to develop an optimized system to detect Atrial Fibrillation (AF) in compressively sensed electrocardiogram (ECG) for long-term remote patient monitoring.
Mohamed Abdelazez, Sreeraman Rajan, Adrian D. C. Chan   +2 more
doaj   +1 more source

Application of Dynamic Time Warping to Determine the Shear Wave Velocity from the Down-Hole Test

Applied Sciences, 2023
A tailing storage facility (TSF) is a complex hydrotechnical structure that requires continuous monitoring to prevent catastrophic dam damage. One critical issue to control is the soil’s characteristics, which is why many field and laboratory tests are ...
Natalia Duda-Mróz, Wioletta Koperska, Paweł Stefaniak, Sergii Anufriiev, Maria Stachowiak, Paweł Stefanek   +5 more
doaj   +1 more source

An Automatic ECG Signal Quality Assessment Method Based on Resnet and Self-Attention

Applied Sciences, 2023
Electrocardiogram (ECG) signals are among the significant physiological signals that indicate the essential properties of the human body. In recent years, the measurement of ECG signals has become more portable thanks to the increasing usage of wearable ...
Yuying Liu, Hao Zhang, Kun Zhao, Haiyang Liu, Fei Long, Liping Chen, Yaguang Yang   +6 more
doaj   +1 more source

Non-Standard Electrode Placement Strategies for ECG Signal Acquisition

Sensors, 2022
Background: Wearable technologies for monitoring cardiovascular parameters, including electrocardiography (ECG) and impedance cardiography (ICG), propose a challenging research subject.
Margus Metshein, Andrei Krivošei, Anar Abdullayev, Paul Annus, Olev Märtens   +4 more
doaj   +1 more source

AMC2-Pyramid: Intelligent Pyramidal Feature Engineering and Multi-Distance Decision Making for Automatic Multi-Carrier Modulation Classification

IEEE Access, 2021
Automatic modulation classification (AMC) is a method that supported different wireless communication systems for modulation type classification. Currently, orthogonal frequency division multiplexing, multiple-input, multiple-output systems are widely ...
Dhamyaa Husam Al-Nuaimi, Nor Ashidi Mat Isa, Muhammad Firdaus Akbar, Intan Sorfina Zainal Abidin   +3 more
doaj   +1 more source

PhysioKit: An Open-Source, Low-Cost Physiological Computing Toolkit for Single- and Multi-User Studies

Sensors, 2023
The proliferation of physiological sensors opens new opportunities to explore interactions, conduct experiments and evaluate the user experience with continuous monitoring of bodily functions. Commercial devices, however, can be costly or limit access to
Jitesh Joshi, Katherine Wang, Youngjun Cho   +2 more
doaj   +1 more source