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Proceedings ArticleDOI

Time Warping Solutions for Classifying Artifacts in EEG

TLDR
This paper devise algorithms for detection and classification of artifacts into head nod, jaw movement and eye-blink is performed using two different varieties of time warping; namely, linear time warped, and dynamic time Warping.
Abstract
The most common brain-computer interface (BCI) devices use electroencephalography (EEG). EEG signals are noisy owing to the presence of many artifacts, namely head movement, and facial movements like eye blinks or jaw movements. Removal of these artifacts from EEG signals is essential for the success of any downstream BCI application. These artifacts influence different sensors of the EEG. In this paper, we devise algorithms for detection and classification of artifacts. Classification of artifacts into head nod, jaw movement and eye-blink is performed using two different varieties of time warping; namely, linear time warping, and dynamic time warping. The average accuracy of 85% and 90% is obtained using the former, and the later, respectively.

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Citations
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Brain Activity Investigation byEEGProcessing: Wavelet Analysis, Kurtosis andRenyi's Entropy forArtifact Detection

TL;DR: A multiresolution analysis, based on EEG wavelet processing, to extract the cerebral EEG rhythms and a method based on Renyi's entropy and kurtosis to automatically identify the Wavelet components affected by artifacts.
Proceedings ArticleDOI

Blink: A Fully Automated Unsupervised Algorithm for Eye-Blink Detection in EEG Signals

TL;DR: This work proposes a fully automated and unsupervised eyeblink detection algorithm, Blink that self-learns user-specific brainwave profiles for eye-blinks, and does away with any user training or manual inspection requirements.
References
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Dynamic programming algorithm optimization for spoken word recognition

TL;DR: This paper reports on an optimum dynamic progxamming (DP) based time-normalization algorithm for spoken word recognition, in which the warping function slope is restricted so as to improve discrimination between words in different categories.
Journal ArticleDOI

FASTER: Fully Automated Statistical Thresholding for EEG artifact Rejection.

TL;DR: FASTER (Fully Automated Statistical Thresholding for EEG artifact Rejection) had >90% sensitivity and specificity for detection of contaminated channels, eye movement and EMG artifacts, linear trends and white noise, and aggregates the ERP across subject datasets, and detects outlier datasets.
Journal ArticleDOI

Automatic removal of eye movement and blink artifacts from EEG data using blind component separation

TL;DR: Although the focus is on eliminating ocular artifacts in EEG data, the approach can be extended to other sources of EEG contamination such as cardiac signals, environmental noise, and electrode drift, and adapted for use with magnetoencephalographic (MEG) data, a magnetic correlate of EEG.
Journal ArticleDOI

Automatic Classification of Artifactual ICA-Components for Artifact Removal in EEG Signals

TL;DR: This work proposes a universal and efficient classifier of ICA components for the subject independent removal of artifacts from EEG data that is applicable for different electrode placements and supports the introspection of results.
Proceedings Article

Extended ICA Removes Artifacts from Electroencephalographic Recordings

TL;DR: The results show that ICA can effectively detect, separate and remove activity in EEG records from a wide variety of artifactual sources, with results comparing favorably to those obtained using regression-based methods.
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