EEG Multipurpose Eye Blink Detector using convolutional neural network
DOI:
https://doi.org/10.33448/rsd-v10i15.22712Keywords:
Artifact removal techniques; Signal Processing; Eye blink; BCI.Abstract
The electrical signal emitted by the eyes movement produces a very strong artifact on EEG signal due to its close proximity to the sensors and abundance of occurrence. In the context of detecting eye blink artifacts in EEG waveforms for further removal and signal purification, multiple strategies where proposed in the literature. Most commonly applied methods require the use of a large number of electrodes, complex equipment for sampling and processing data. The goal of this work is to create a reliable and user independent algorithm for detecting and removing eye blink in EEG signals using CNN (convolutional neural network). For training and validation, three sets of public EEG data were used. All three sets contain samples obtained while the recruited subjects performed assigned tasks that included blink voluntarily in specific moments, watch a video and read an article. The model used in this study was able to have an embracing understanding of all the features that distinguish a trivial EEG signal from a signal contaminated with eye blink artifacts without being overfitted by specific features that only occurred in the situations when the signals were registered.
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Copyright (c) 2021 Amanda Ferrari Iaquinta; Ana Carolina de Sousa Silva; Aldrumont Ferraz Júnior; Jessica Monique de Toledo; Gustavo Voltani von Atzingen
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