Results 31 to 40 of about 28,681,192 (295)

Analysing EEG brain signals using independent component analysis techniques [PDF]

open access: yes, 2011
The use of electroencephalography (EEG) in the medical field is evident in the effect it has on diagnosis and treatment of patients who suffer from some form of brain problem. These signals however once collected are overlayed with artifacts. This thesis
Williams, Janett G. St. H.
core   +1 more source

TFT-LCD Mura Defects Using Independent Component Analysis

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2009
Independent component analysis (ICA) is used to detect the mura regions with varying sizes and brightness levels before thresholding, then individually analyzed the mura regions in order to avoid unnecessary background effect.
Shang Liang CHEN, Chi Chin YANG
doaj   +1 more source

Heavy-Tailed Independent Component Analysis [PDF]

open access: yes2015 IEEE 56th Annual Symposium on Foundations of Computer Science, 2015
Independent component analysis (ICA) is the problem of efficiently recovering a matrix $A \in \mathbb{R}^{n\times n}$ from i.i.d. observations of $X=AS$ where $S \in \mathbb{R}^n$ is a random vector with mutually independent coordinates. This problem has been intensively studied, but all existing efficient algorithms with provable guarantees require ...
Joseph Anderson   +3 more
openaire   +4 more sources

An Introduction to Independent Component Analysis: InfoMax and FastICA algorithms [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2010
This paper presents an introduction to independent component analysis (ICA). Unlike principal component analysis, which is based on the assumptions of uncorrelatedness and normality, ICA is rooted in the assumption of statistical independence ...
Dominique Gosselin   +2 more
doaj  

Bi-Smoothed Functional Independent Component Analysis for EEG Artifact Removal

open access: yesMathematics, 2021
Motivated by mapping adverse artifactual events caused by body movements in electroencephalographic (EEG) signals, we present a functional independent component analysis based on the spectral decomposition of the kurtosis operator of a smoothed principal
Marc Vidal   +2 more
doaj   +1 more source

Independent Component Analysis for Magnetic Resonance Image Analysis

open access: yesEURASIP Journal on Advances in Signal Processing, 2008
Independent component analysis (ICA) has recently received considerable interest in applications of magnetic resonance (MR) image analysis. However, unlike its applications to functional magnetic resonance imaging (fMRI) where the number ...
San-Kan Lee   +7 more
doaj   +1 more source

Human locomotion-control brain networks detected with independent component analysis [PDF]

open access: yesJournal of Integrative Neuroscience, 2021
Walking is a fundamental movement skill in humans. However, how the brain controls walking is not fully understood. In this functional magnetic resonance imaging study, the rhythmic, bilaterally alternating ankle movements were used as paradigm to ...
Pengxu Wei   +3 more
doaj   +1 more source

Noisy independent component analysis of autocorrelated components [PDF]

open access: yesPhysical Review E, 2017
We present a new method for the separation of superimposed, independent, auto-correlated components from noisy multi-channel measurement. The presented method simultaneously reconstructs and separates the components, taking all channels into account and thereby increases the effective signal-to-noise ratio considerably, allowing separations even in the
Knollmüller, J., Enßlin, T.
openaire   +4 more sources

fMRI BOLD Correlates of EEG Independent Components: Spatial Correspondence With the Default Mode Network

open access: yesFrontiers in Human Neuroscience, 2018
Goal: We aimed to identify electroencephalographic (EEG) signal fluctuations within independent components (ICs) that correlate to spontaneous blood oxygenation level dependent (BOLD) activity in regions of the default mode network (DMN) during eyes ...
Marcel Prestel   +4 more
doaj   +1 more source

Consistency of independent component analysis for FMRI

open access: yesJournal of Neuroscience Methods, 2021
Independent component analysis (ICA) has been widely used for blind source separation in the field of medical imaging. However, despite of previous substantial efforts, the stability of ICA components remains a critical issue which has not been adequately addressed, despite numerous previous efforts.
Zhao, Wei   +8 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy