Wang Huihai, Su Qinglun, Yan Zhenzhuang, Lu Fei, Zhao Qin, Liu Zhen, Zhou Fang
Department of Rehabilitation Medicine, The First People's Hospital of Lianyungang, Lianyungang, China.
Front Neurosci. 2020 Oct 22;14:595084. doi: 10.3389/fnins.2020.595084. eCollection 2020.
In recent years, brain-computer interface (BCI) is expected to solve the physiological and psychological needs of patients with motor dysfunction with great individual differences. However, the classification method based on feature extraction requires a lot of prior knowledge when extracting data features and lacks a good measurement standard, which makes the development of BCI. In particular, the development of a multi-classification brain-computer interface is facing a bottleneck. To avoid the blindness and complexity of electroencephalogram (EEG) feature extraction, the deep learning method is applied to the automatic feature extraction of EEG signals. It is necessary to design a classification model with strong robustness and high accuracy for EEG signals. Based on the research and implementation of a BCI system based on a convolutional neural network, this article aims to design a brain-computer interface system that can automatically extract features of EEG signals and classify EEG signals accurately. It can avoid the blindness and time-consuming problems caused by the machine learning method based on feature extraction of EEG data due to the lack of a large amount of prior knowledge.
近年来,脑机接口(BCI)有望满足运动功能障碍患者极具个体差异的生理和心理需求。然而,基于特征提取的分类方法在提取数据特征时需要大量先验知识,且缺乏良好的度量标准,这阻碍了脑机接口的发展。特别是,多分类脑机接口的发展正面临瓶颈。为避免脑电图(EEG)特征提取的盲目性和复杂性,将深度学习方法应用于EEG信号的自动特征提取。有必要为EEG信号设计一个具有强鲁棒性和高精度的分类模型。基于对基于卷积神经网络的BCI系统的研究与实现,本文旨在设计一个能自动提取EEG信号特征并准确分类EEG信号的脑机接口系统。它可以避免由于缺乏大量先验知识而导致的基于EEG数据特征提取的机器学习方法所带来的盲目性和耗时问题。