Motor imagery electroencephalogram feature enhancement method and system

A technology of motor imagery and feature enhancement, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as poor intuition, low recognition rate of effective scalp EEG signals, and inconspicuous enhancement of EEG signals, etc., to achieve The effect of improving the recognition rate

Inactive Publication Date: 2020-05-08
YANSHAN UNIV
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  • Abstract
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Problems solved by technology

[0006] The purpose of the present invention is to provide a motor imagery EEG feature enhancement method and system to solve the problem that the existing EEG signal enhancement

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  • Motor imagery electroencephalogram feature enhancement method and system
  • Motor imagery electroencephalogram feature enhancement method and system
  • Motor imagery electroencephalogram feature enhancement method and system

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Embodiment Construction

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0060] The purpose of the present invention is to provide a motor imagery EEG feature enhancement method and system, which can improve the effective signal recognition rate of scalp EEG.

[0061] All other examples obtained under the premise of creative work

[0062] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the ac...

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Abstract

The invention relates to a motor imagery electroencephalogram feature enhancement method and system. The enhancement method comprises the following steps: acquiring a multi-mode neural feedback training motor imagery electroencephalogram feature enhancement paradigm; based on the multi-mode neural feedback training motor imagery electroencephalogram feature enhancement normal form, acquiring multi-channel electroencephalogram signals of a pair of a parietal region motor cortex and an occipital region visual cortex; preprocessing the electroencephalogram signals, and determining the preprocessed electroencephalogram signals; conducting dynamic and coupled multi-level feature extraction on the preprocessed electroencephalogram signals, and determining dynamic features and coupling features of the preprocessed electroencephalogram signals; and according to the dynamic features and the coupling features, displaying feature values of the motor imagery electroencephalogram signals before enhancement and feature values of the motor imagery electroencephalogram signals after enhancement. By adopting the enhancement method and system provided by the invention, the recognition rate of effective scalp electroencephalogram signals can be improved.

Description

technical field [0001] The invention relates to the field of electroencephalogram signal enhancement, in particular to a method and system for enhancing motor imagery electroencephalogram features. Background technique [0002] Electroencephalogram (EEG) is the overall reflection of the electrophysiological activity of brain nerve cells on the surface of the cerebral cortex or scalp. EEG signals contain a large amount of physiological and disease information. In clinical medicine, EEG signal processing can not only provide diagnosis basis for some brain diseases, but also provide effective treatment methods for some brain diseases. In terms of engineering applications, people also try to use EEG signals to realize brain-computer interfaces, and use the differences in EEG signals for different sensations, movements or cognitive activities to achieve a certain level of accuracy through effective extraction and classification of EEG signals control purposes. But because the E...

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Application Information

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IPC IPC(8): A61B5/0476A61B5/00
CPCA61B5/7203A61B5/7225A61B5/725A61B5/7267A61B5/369
Inventor 吴晓光何思凡谢平陈晓玲张宁宁郝慎才李小俚江国乾
Owner YANSHAN UNIV
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