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EEG Signal Processing for Biomedical Applications

open access: yesSensors, 2022
Electroencephalography (EEG) signals are used widely in clinical and research settings [...]
Yvonne Tran
doaj   +3 more sources

Advanced Signal Processing Methods for Biomedical Imaging [PDF]

open access: yesInternational Journal of Biomedical Imaging, 2013
Signal processing is a long-established engineering field with broad applications in so different arenas such as multimedia (audio, still image, video, graphics, etc.), coding, communications, seismology, astronomy, biomedicine, artificial intelligence, and econometrics, to only name some of them.
Juan Ruiz-Alzola   +2 more
doaj   +3 more sources

High Contrast Allows the Retina to Compute More Than Just Contrast

open access: yesFrontiers in Cellular Neuroscience, 2021
The goal of sensory processing is to represent the environment of an animal. All sensory systems share a similar constraint: they need to encode a wide range of stimulus magnitudes within their narrow neuronal response range.
Matthew Yedutenko   +3 more
doaj   +1 more source

Functional MRI reveals brain-wide actions of thalamically-initiated oscillatory activities on associative memory consolidation

open access: yesNature Communications, 2023
As a key oscillatory activity in the brain, thalamic spindle activities are long believed to support memory consolidation. However, their propagation characteristics and causal actions at systems level remain unclear.
Xunda Wang   +6 more
doaj   +1 more source

An Experimental Platform for Tomographic Reconstruction of Tissue Images in Brightfield Microscopy

open access: yesSensors, 2023
(1) Background: Reviewing biological material under the microscope is a demanding and time-consuming process, prone to diagnostic pitfalls. In this study, a methodology for tomographic imaging of tissue sections is presented, relying on the idea that ...
Panteleimon Koudounas   +6 more
doaj   +1 more source

Method-comparison study between a watch-like sensor and a cuff-based device for 24-h ambulatory blood pressure monitoring

open access: yesScientific Reports, 2023
The use of 24-h ambulatory blood pressure monitoring (ABPM) has been continuously increasing over the last decades. However, cuff-based devices may cause discomfort, particularly at night, leading to potentially non-representative blood pressure (BP ...
Martin Proença   +8 more
doaj   +1 more source

A low-cost and shielding-free ultra-low-field brain MRI scanner

open access: yesNature Communications, 2021
A low cost MRI scanner may have the potential to meet clinical needs at point of care or in low and middle income countries. Here the authors describe a low cost 0.055 Tesla MRI scanner that operates using a standard AC power outlet, and demonstrate its ...
Yilong Liu   +8 more
doaj   +1 more source

A Heavy Tailed Expectation Maximization Hidden Markov Random Field Model with Applications to Segmentation of MRI

open access: yesFrontiers in Neuroinformatics, 2017
A wide range of segmentation approaches assumes that intensity histograms extracted from magnetic resonance images (MRI) have a distribution for each brain tissue that can be modeled by a Gaussian distribution or a mixture of them.
Diego Castillo-Barnes   +9 more
doaj   +1 more source

The Classification of Heartbeats from Two-Channel ECG Signals Using Layered Hidden Markov Model

open access: yesFrontiers in Biomedical Technologies, 2021
Purpose: Cardiac arrhythmia is one of the most common heart diseases that can have serious consequences. Thus, heartbeat arrhythmias classification is very important to help diagnose and treat.
Azadeh Sadoughi   +2 more
doaj   +1 more source

Functional Brain Imaging Synthesis Based on Image Decomposition and Kernel Modeling: Application to Neurodegenerative Diseases

open access: yesFrontiers in Neuroinformatics, 2017
The rise of neuroimaging in research and clinical practice, together with the development of new machine learning techniques has strongly encouraged the Computer Aided Diagnosis (CAD) of different diseases and disorders.
Francisco J. Martinez-Murcia   +6 more
doaj   +1 more source

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