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Kalman Filter Based Adaptive Reduction Of Motion Artifact From Photoplethysmographic Signal
2008
Zenodo
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Artifact free photoplethysmographic (PPG) signals are necessary for non-invasive estimation of oxygen saturation (SpO2) in arterial blood. ...
Movement of a patient corrupts the PPGs with motion artifacts, resulting in large errors in the computation of Sp02. ...
In section 2 the nature of PPG signal and motion artifact effects are analyzed. A new formulation for motion artifact reduction, to fit Kalman filter structure, comes in section 3. ...
doi:10.5281/zenodo.1333655
fatcat:6xmkvqnrdzd3xklkmnuokswkfq
PHOEBE: a method for real time mapping of optodes-scalp coupling in functional near-infrared spectroscopy
2016
Biomedical Optics Express
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with a signal-to-noise ratio (SNR) sufficient to carry out a reliable estimation of cortical hemodynamics, and the considerable amount of time that placing numerous optodes take with individuals for whom ...
The methodology described in this paper has been implemented in a software tool named PHOEBE (placing headgear optodes efficiently before experimentation) that is freely available for use by the fNIRS ...
Jonathan Perry for helping with the GUI coding and Mr. Homer Abaya for testing the usability of the software. ...
doi:10.1364/boe.7.005104
pmid:28018728
pmcid:PMC5175555
fatcat:b644ydfwqnap5dtqnr44vzm6ja
Arterial pulse transit time evaluation by peripheral pulse wave measurement
2013
Journal of Measurements in Engineering
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New indices able to change PTT have been proposed. This method has powerful perspective for wearable arterial stiffness monitoring devices realization. ...
Arterial pulse transit time (PTT) is a simple noninvasive diagnostic tool. However it is still requiring two processes ECG and photoplethysmogram to be measured. ...
The most popular measurement technique for pulse wave acquiring is a photoplethysmographic (PPG) clip at a finger. ...
doaj:c330c6f3ba554ceca49e6f4814a57b55
fatcat:ok2rpp7sufd35dfua7azph7ahq
A Correlation Study on Motion Artifact using Photodiode and Three Axis Accelerometer Signals
2017
Indian Journal of Science and Technology
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Application/Improvements: Implementing such concept for Photoplethysmography signal processing within ANC leads to a curate critical medical diagnosis at a lower cost. ...
This study investigates the validity of using a Covered Photodetector (CPD) for MA detection to unify the sources of generated desired and MA signals to avoid electronic noise differences. ...
Adopting the new concept opens a new horizon for more specific applications in term of features extraction for various diseases diagnosis with less computational complexities. ...
doi:10.17485/ijst/2017/v10i7/111457
fatcat:2prnvrzxpbcqflanegyjxlpsuu
Measurement of splanchnic photoplethysmographic signals using a new reflectance fiber optic sensor
2010
Journal of Biomedical Optics
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As a preliminary to developing a suitable splanchnic SpO 2 sensor, a new reflectance fiber optic photoplethysmographic ͑PPG͒ sensor and processing system are developed. ...
PPG signals are acquired from four volunteers for separation distances of 1 to 8 mm. ...
The low frequency artifact present on the splanchnic PPG traces was due to the mechanical ventilator and movement of the hand-held sensor. ...
doi:10.1117/1.3374355
pmid:20459286
fatcat:uv4u6urhazgqbbmcxfnzbnajjq
Wearable Photoplethysmographic Sensors—Past and Present
2014
Electronics
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Recent advances in optical technology have facilitated the use of high-intensity green LEDs for PPG, increasing the adoption of this measurement technique. ...
These devices, consisting of infrared light-emitting diodes (LEDs) and photodetectors, offer a simple, reliable, low-cost means of monitoring the pulse rate noninvasively. ...
Acknowledgments This work was partly supported by a grant-in-aid from the Regional Innovation Strategy Support Program 2011-2015. ...
doi:10.3390/electronics3020282
fatcat:76fbytrdqbgafdesgtfcbqk3de
Dual-channel optical pulse oximeter on the base of laser sensors to solve actual problems in medical practice
Оптический двухканальный пульс-оксиметр на основе лазерных датчиков для решения актуальных задач в медицинской практике
2017
Photonics Russia
Оптический двухканальный пульс-оксиметр на основе лазерных датчиков для решения актуальных задач в медицинской практике
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Thanks to new technical solutions in PSO-2CL-triaxis accelerometer in detector-we can avoid from movement artifact as the main reason of disturbance. ...
It must be mentioned that artifact detection is rather complicated task for producers as movement artifact has to be distinguished from arrhythmia. ...
doi:10.22184/1993-7296.2017.61.1.144.157
fatcat:lxgcc5jlmresdlrksogxydwkci
Motion artifact removal from photoplethysmographic signals by combining temporally constrained independent component analysis and adaptive filter
2014
BioMedical Engineering OnLine
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The calculation of arterial oxygen saturation (SpO 2 ) relies heavily on the amplitude information of the high-quality photoplethysmographic (PPG) signals, which could be contaminated by motion artifacts ...
Methods: A new method combining temporally constrained independent component analysis (cICA) and adaptive filters is presented here to extract the clean PPG signals from the MA corrupted PPG signals with ...
Generally, a pulse oximeter employs double wavelengths of light (red and infrared (IR)) for the emission sources and a photodiode as detector to receive the informationbearing light from the same or the ...
doi:10.1186/1475-925x-13-50
pmid:24761769
pmcid:PMC4021027
fatcat:uyd7glrhfjgpzcdrq7uvhrl2ky
REFLECTANCE METHOD FOR A WEARABLE PHOTOPLETHYSMOGRAPHIC SENSOR – EXPERIMENTAL EVALUATION
2016
The Polish Journal of Aviation Medicine Bioengineering and Psychology
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The article presents the design and testing results of a photoplethysmographic signal sensor intended for use in everyday activities. ...
Determination of the photoplethysmographic signal and calculation of heart rate was based on appropriate data processing algorithms including digital fi lters, signal segmentation, moving average and variable ...
The method is based on a quasi-periodicity of the PPG signal, with motion-related artifacts being eliminated by appropriate averaging of PPG signal samples. ...
doi:10.13174/pjambp.30.12.2016.01
fatcat:y2ia6whgfrfjzliu3uqnhayz2q
Area Triangulation Method for Automatic Detection of Venous Emptying Maneuvers
2019
Brazilian Archives of Biology and Technology
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First Derivative Method (FDM) can be employed for automatic detection of the EEM, but its sensitivity to artifacts and noise can degrade its performance. ...
This work compares the exactness of ATM and FDM for recognition of the EEM. The annotations made by 3 trained human observers on 37 photoplethysmography records were used as a reference. ...
Based on cited facts, the present study proposes a new application for ATM: automatic detection of the EEM. ...
doi:10.1590/1678-4324-2019180078
fatcat:rgp24soxlrh25lf4gja5ucseha
SPARE: A Spectral Peak Recovery Algorithm for PPG Signals Pulsewave Reconstruction in Multimodal Wearable Devices
2021
Sensors
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To overcome this issue, we propose SPARE, a spectral peak recovery algorithm for PPG signals pulsewave reconstruction. ...
Unfortunately, this signal is prone to motion artifacts, making it almost useless in all situations where a person is not entirely at rest. ...
The designed model for full pulsewave reconstruction-by leveraging quasiperiodic PPG signals' fundamental properties-allows a new interpretation of the photoplethysmographic signals, introducing new paradigms ...
doi:10.3390/s21082725
pmid:33924351
fatcat:gbcvqndmcjgxbf7zg7onlzihiu
Wearable Pulse Wave Monitoring System Based on MEMS Sensors
2018
Micromachines
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polydimethylsiloxane (PDMS), a blood oxygen detector and a MEMS three-axis accelerometer. ...
Pulse wave monitoring is critical for the evaluation of human health. In this paper, a wearable multi-sensor pulse wave monitoring system is proposed and demonstrated. ...
A blood oxygen detector is also used to detect the volume of the pulse wave and a MEMS accelerometer is used to monitor the movement of the wrist for compensation. ...
doi:10.3390/mi9020090
pmid:30393366
pmcid:PMC6187337
fatcat:74pbmiyedjhhddotutclc5uz2e
Opto-Physiological Modeling Applied to Photoplethysmographic Cardiovascular Assessment
2013
Journal of Healthcare Engineering
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ACKNOWLEDGEMENTS The authors are grateful to our colleagues at the Photonics Engineering and Health Technology Research Group of Loughborough University for their enormous contributions. ...
Motion artifact, however, is a 506 Opto-Physiological Modeling Applied to Photoplethysmographic Cardiovascular Assessment complex issue due to its contribution to the PPG signal being several orders of ...
of fetal wellbeing [18] . (2) A common source of PPG signal corruption is the inadvertent measurement of ambient light and voluntary or involuntary movement of the patient [19] . ...
doi:10.1260/2040-2295.4.4.505
pmid:24287429
fatcat:b5qrwu2yzzcfbbdzlxbwtubzuq
Development of a remote photoplethysmographic technique for human biometrics
2009
Design and Quality for Biomedical Technologies II
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ACKNOWLEDGEMENT The authors would like to express their thanks to Loughborough University and Shanghai Jiao Tong University for the financial support to carry out this study. ...
setup to ratify the applicability of this new technique for biomedical and clinical use. ...
Clinically useful devices can however only be realized if effective solutions are found for: poor signal-to-noise ratio, motion artifacts, lack of dynamic range and tissue glare. ...
doi:10.1117/12.807360
fatcat:ya6whi5bznfjfmv3k2nzjqoiae
A survey of remote optical photoplethysmographic imaging methods
2015
2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
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In recent years researchers have presented a number of new methods for recovering physiological parameters using just low-cost digital cameras and image processing. ...
In this paper we present a review of the work on remote photoplethysmographic (PPG) imaging using digital cameras. ...
., using a face detector). Following this the camera color channel signals are processed, typically to recover the blood volume pulse (BVP) signal. ...
doi:10.1109/embc.2015.7319857
pmid:26737757
dblp:conf/embc/McDuffEPB15
fatcat:eukye2mu4nebjax5wtzghnpzom
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