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arXiv · 2204.01666

A Novel Capsule Neural Network Based Model for Drowsiness Detection Using Electroencephalography Signals

Luis Guarda·Juan Tapia·Enrique Lopez Droguett·Marcelo Ramos
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Abstract

The early detection of drowsiness has become vital to ensure the correct and safe development of several industries' tasks. Due to the transient mental state of a human subject between alertness and drowsiness, automated drowsiness detection is a complex problem to tackle. The electroencephalography signals allow us to record variations in an individual's brain's electrical potential, where each of them gives specific information about a subject's mental state. However, due to this type of signal's nature, its acquisition, in general, is complex, so it is hard to have a large volume of data to apply techniques of Deep Learning for processing and classification optimally. Nevertheless, Capsule Neural Networks are a brand-new Deep Learning algorithm proposed for work with reduced amounts of data. It is a robust algorithm to handle the data's hierarchical relationships, which is an essential characteristic for work with biomedical signals. Therefore, this paper presents a Deep Learning-based method for drowsiness detection with CapsNet by using a concatenation of spectrogram images of the electroencephalography signals channels. The proposed CapsNet model is compared with a Convolutional Neural Network, which is outperformed by the proposed model, which obtains an average accuracy of 86,44% and 87,57% of sensitivity against an average accuracy of 75,86% and 79,47% sensitivity for the CNN, showing that CapsNet is more suitable for this kind of datasets and tasks.

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Luis Guarda, Juan Tapia, Enrique Lopez Droguett, Marcelo Ramos. 2022-04-04. A Novel Capsule Neural Network Based Model for Drowsiness Detection Using Electroencephalography Signals. https://arxiv.org/abs/2204.01666

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