Results 11 to 20 of about 502,307 (287)

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

CACTUS: a computational framework for generating realistic white matter microstructure substrates

open access: yesFrontiers in Neuroinformatics, 2023
Monte-Carlo diffusion simulations are a powerful tool for validating tissue microstructure models by generating synthetic diffusion-weighted magnetic resonance images (DW-MRI) in controlled environments.
Juan Luis Villarreal-Haro   +14 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

Comparison of HRV indices obtained from ECG and SCG signals from CEBS database

open access: yesBioMedical Engineering OnLine, 2019
Background Heart rate variability (HRV) has become a useful tool of assessing the function of the heart and of the autonomic nervous system. Over the recent years, there has been interest in heart rate monitoring without electrodes.
Szymon Siecinski   +2 more
doaj   +1 more source

Radiomics Texture Analysis of Bone Marrow Alterations in MRI Knee Examinations

open access: yesJournal of Imaging, 2023
Accurate diagnosis and timely intervention are key to addressing common knee conditions effectively. In this work, we aim to identify textural changes in knee lesions based on bone marrow edema (BME), injury (INJ), and osteoarthritis (OST).
Spiros Kostopoulos   +8 more
doaj   +1 more source

Pannexin 1 Is Critically Involved in Feedback from Horizontal Cells to Cones

open access: yesFrontiers in Molecular Neuroscience, 2017
Retinal horizontal cells (HCs) feed back negatively to cone photoreceptors and in that way generate the center/surround organization of bipolar cell receptive fields. The mechanism by which HCs inhibit photoreceptors is a matter of debate.
Valentina Cenedese   +6 more
doaj   +1 more source

Comparison of smoothing filters in analysis of EEG data for the medical diagnostics purposes [PDF]

open access: yes, 2020
This paper covers a brief review of both the advantages and disadvantages of the implementation of various smoothing filters in the analysis of electroencephalography (EEG) data for the purpose of potential medical diagnostics.
Blaszczyszyn, Monika   +6 more
core   +1 more source

Special Issue: “Research on Biomedical Signal Processing”

open access: yesApplied Sciences, 2023
Over recent years, the number of signals of a different type that can be acquired from the human body has increased extraordinarily [...]
Maurizio Varanini   +2 more
doaj   +1 more source

Design of non-linear filter in the problem of structural identification of biomedical signals with locally concentrated properties [PDF]

open access: yes, 2013
In this paper we propose a generalized method of structural identification of biomedical signals with locally concentrated properties using a digital non-linear filter.
Filatova, A. E.   +2 more
core   +1 more source

ISAR Imaging of Multiple Targets With Time-Delay Receive Array

open access: yesIEEE Access, 2020
For inverse synthetic aperture radar (ISAR), it is desirable to perform simultaneously imaging of multi-target within a wide spatial angle region. Besides, it is likely that multiple targets are covered by several beams, or sometimes within a single beam,
Mengdi Zhang   +4 more
doaj   +1 more source

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