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Research of Brain-computer Interface System Based on Motor Imagery

机译：基于运动图像的脑机接口系统研究

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摘要

From the perspective of signal processing,This paper set forth the technology principle of the brain-computer interface based on motor imagery and study the EEG signal processing methods of brain-computer interface based on motor imagery.This system is the use of NT9200 electroencephalography to acquisition the EEG of motor imagery.The BCI experiment system based on motor imagery EEG was established on LabVIEW platform.Using elliptic filter to signal preprocessing,using FFT to extract the characteristic value of motor imagery EEG,using Fisher linear discriminative classifier to signal characteristic value for effective pattern classification,and ultimately converted the classification results to control commands so that to realize the requirements of human-computer interaction.Through a large number of experiments,the average ratio of this system for motor imagery EEG is higher than 83％.It proved that this system is feasible and has a high application value.
机译：从信号处理的角度出发，阐述了基于运动图像的脑机接口的技术原理，研究了基于运动图像的脑机接口的脑电信号处理方法。该系统利用NT9200脑电图技术在LabVIEW平台上建立了基于电机图像脑电图的BCI实验系统。利用椭圆滤波器对信号进行预处理，利用FFT提取电机图像脑电图特征值，利用Fisher线性判别器对信号脑电图特征值进行识别为了进行有效的模式分类，最终将分类结果转换为控制命令，从而实现人机交互的要求。通过大量的实验，该系统对运动图像脑电图的平均比例高于83％。实践证明，该系统可行，具有较高的应用价值。

著录项

  • 来源
  • 会议地点 Tianjin(CN)
  • 作者

    Li Zhao; Yong Sun; Yanzhen Ma; Xuhong Guo; Yang He; Xin Gao;

  • 作者单位

    Tianjin Key Laboratory of Informational Sensing Intelligent Control,Tianjin University of Technology and Education, Tianjin, China;

    Tianjin Key Laboratory of Informational Sensing Intelligent Control,Tianjin University of Technology and Education, Tianjin, China;

    Tianjin Key Laboratory of Informational Sensing Intelligent Control,Tianjin University of Technology and Education, Tianjin, China;

    Tianjin Key Laboratory of Informational Sensing Intelligent Control,Tianjin University of Technology and Education, Tianjin, China;

    Tianjin Key Laboratory of Informational Sensing Intelligent Control,Tianjin University of Technology and Education, Tianjin, China;

    Tianjin Key Laboratory of Informational Sensing Intelligent Control,Tianjin University of Technology and Education, Tianjin, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 TH15;
  • 关键词

    BCI; motor imagery; ERS/ERD; LabVIEW platform;

    机译：BCI;运动图像; ERS ​​/ ERD; LabVIEW平台;

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