Respiratory Rate Extraction from Neonatal Near-Infrared Spectroscopy Signals
Sensors, 2023 Background: Near-infrared spectroscopy (NIRS) relative concentration signals contain ‘noise’ from physiological processes such as respiration and heart rate. Simultaneous assessment of NIRS and respiratory rate (RR) using a single sensor would facilitate
Naser Hakimi +6 more
doaj +1 more source
Signal quality index: an algorithm for quantitative assessment of functional near infrared spectroscopy signal quality [PDF]
Biomedical Optics Express, 2020 We propose the signal quality index (SQI) algorithm as a novel tool for quantitatively assessing the functional near infrared spectroscopy (fNIRS) signal quality in a numeric scale from 1 (very low quality) to 5 (very high quality). The algorithm comprises two preprocessing steps followed by three consecutive rating stages.
Sappia, M. Sofía +3 more
openaire +2 more sources
Assessment of quality of signal transmission process in focs with DWDM [PDF]
E3S Web of Conferences, 2023 The power of a group DWDM signal increases nonlinear interference in the optical path, especially the value of the interference of the FWM. These interfering factors degrade signal transmission quality and can completely disable the WDM system. Therefore,
Mirazimova Gulnora, Kadirova Laylo
doaj +1 more source
Photoplethysmogram Analysis and Applications: An Integrative Review
Frontiers in Physiology, 2022 Beyond its use in a clinical environment, photoplethysmogram (PPG) is increasingly used for measuring the physiological state of an individual in daily life.
Junyung Park +3 more
doaj +1 more source
Machine Learning: Science and Technology, 2023 Owing to recent advances in thoracic electrical impedance tomography (EIT), a patient’s hemodynamic function can be noninvasively and continuously estimated in real-time by surveilling a cardiac volume signal (CVS) associated with stroke volume and ...
Chang Min Hyun +5 more
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Objectively measuring signal detectability, contrast, blur and noise in medical images using channelized joint observers [PDF]
, 2013 To improve imaging systems and image processing techniques, objective image quality assessment is essential. Model observers adopting a task-based quality assessment strategy by estimating signal detectability measures, have shown to be quite successful ...
Goossens, Bart +3 more
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Fatigue Monitoring Through Wearables: A State-of-the-Art Review
Frontiers in Physiology, 2021 The objective measurement of fatigue is of critical relevance in areas such as occupational health and safety as fatigue impairs cognitive and motor performance, thus reducing productivity and increasing the risk of injury.
Neusa R. Adão Martins +5 more
doaj +1 more source
Clinical and perceived quality of care for maternal, neonatal and antenatal care in Kenya and Namibia: the service provision assessment. [PDF]
, 2016 BackgroundThe majority of women in sub-Saharan Africa now deliver in a facility, however, little is known about the quality of services for maternal and newborn basic and emergency care, nor how this is associated with patient's perception of their ...
Diamond-Smith, Nadia +2 more
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Locally-Stable Macromodels of Integrated Digital Devices for Multimedia Applications [PDF]
, 2008 This paper addresses the development of accurate and efficient behavioral models of digital integrated circuits for the assessment of high-speed systems.
Canavero, Flavio +3 more
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Dampening Spontaneous Activity Improves the Light Sensitivity and Spatial Acuity of Optogenetic Retinal Prosthetic Responses [PDF]
, 2016 Retinitis pigmentosa is a progressive retinal dystrophy that causes irreversible visual impairment and blindness. Retinal prostheses currently represent the only clinically available vision-restoring treatment, but the quality of vision returned remains ...
Barrett, John Martin +2 more
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