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Method and device for removing ocular artifacts and electronic equipment

An electro-ophthalmic, preset technology, applied in the field of neuroengineering, can solve problems such as increasing the difficulty of analyzing and interpreting EEG signals, and achieve the effect of accurate removal

Active Publication Date: 2021-06-22
BEIJING NORMAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the process of realizing the present application, the inventors found that in the process of collecting EEG signals, artifacts (Artifacts) are often disturbed, especially the artifacts of oculoelectricity; Eye movement is often unavoidable under normal circumstances, which makes the EEG artifact often overlap with the EEG signal that the user pays attention to, and since the energy of the EEG signal is usually lower than the EEG artifact, this will greatly increase The difficulty of analyzing and interpreting EEG signals, therefore, it is necessary to provide a method for removing oculoelectric artifacts to efficiently and accurately remove oculoelectric artifacts in EEG signals

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  • Method and device for removing ocular artifacts and electronic equipment
  • Method and device for removing ocular artifacts and electronic equipment
  • Method and device for removing ocular artifacts and electronic equipment

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Embodiment Construction

[0052] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

[0053] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way intended as any limitation of the disclosure, its application or uses.

[0054] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0055] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment m...

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Abstract

The invention discloses a method and device for removing ocular artifacts and electronic equipment. The method comprises the steps: carrying out the non-negative matrix factorization of a to-be-processed original electroencephalogram signal, and acquiring a first matrix and a second matrix, wherein the first matrix represents the time component of the original electroencephalogram signal, and the second matrix represents the time component of the original electroencephalogram signal; performing ensemble empirical mode decomposition on the components containing the electro-oculogram in the first matrix to obtain a first intrinsic mode component; removing eye artifacts in the first intrinsic mode component to obtain a second intrinsic mode component; and according to the second intrinsic mode component and the second matrix, acquiring target electroencephalogram signals, wherein the target electroencephalogram signals are electroencephalogram signals obtained after eye artifacts are removed from the original electroencephalogram signals. According to the method, the ocular artifacts in the electroencephalogram signals can be efficiently and accurately removed.

Description

technical field [0001] The present disclosure relates to the technical field of neural engineering, and more specifically, to a method and device for removing oculoelectric artifacts and an electronic device. Background technique [0002] EEG signals, that is, electroencephalogram (EEG, Electroencephalogram) signals can be used to reflect the neurophysiological activities on the nerve cells on the surface of the cerebral cortex or scalp, which contain rich physiological, psychological and case information, and are widely used in neuroscience, clinical science and Fields such as rehabilitation engineering play an important role. [0003] In the process of realizing the present application, the inventors found that in the process of collecting EEG signals, artifacts (Artifacts) are often disturbed, especially the artifacts of oculoelectricity; Eye movement is often unavoidable under normal circumstances, which makes the EEG artifact often overlap with the EEG signal that the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/369A61B5/372
CPCA61B5/7203A61B5/7235A61B5/7225
Inventor 李小俚古悦李雪张昊
Owner BEIJING NORMAL UNIVERSITY