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EEG signal processing method and system

An EEG signal and processing method technology, applied in the field of EEG signal processing methods and systems, can solve problems such as small amount of calculation, and achieve the effect of fast calculation speed

Active Publication Date: 2022-03-18
BMC MEDICAL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and system for processing EEG signals, which can solve the problem of eliminating ECG artifacts in EEG signals in a way with a small amount of calculation

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  • EEG signal processing method and system
  • EEG signal processing method and system

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Embodiment Construction

[0023] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.

[0024] figure 1 It is a flow chart of the EEG signal processing method provided by the embodiment of the present invention, such as figure 1 As shown, the method includes:

[0025] Step 101, receiving an electroencephalogram signal EEG and an electrocardiogram artifact signal ECG.

[0026] Step 102, calculating the deviation from the mean of each value of the electroencephalogram signal EEG in each time interval, that is, the first deviation from the mean NewEEG.

[0027] Step 103, calculating the deviation from the mean of each value of the electrocardiographic artifact signal...

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Abstract

The invention provides an EEG signal processing method and system, belonging to the technical field of EEG signal processing. The electroencephalogram signal processing method includes: receiving the electroencephalogram signal EEG and the electrocardiogram artifact signal ECG; calculating the deviation from the mean of each value of the electroencephalogram signal EEG in each time interval, that is, the first deviation from the mean difference NewEEG; Calculate the deviation from the mean of each value of the electrocardiographic artifact signal ECG in each time interval, that is, the second deviation from the mean NewECG; calculate each A filtered signal W of the electroencephalogram signal EEG of a time interval; and processing the electroencephalogram signal EEG of a corresponding time interval through the filtered signal W to obtain an electroencephalogram signal without electrocardiographic artifacts. Removing electrocardiographic artifacts through the above technical solution not only has a fast calculation speed, but also has a good effect of eliminating electrocardiographic artifacts.

Description

technical field [0001] The present invention relates to an EEG signal processing technology, in particular to an EEG signal processing method and system. Background technique [0002] Electroencephalogram (Electroencephalogram, EEG) is a method of recording brain activity using electrophysiological indicators. EEG is formed after the sum of the post-synaptic potentials that occur synchronously in a large number of neurons when the brain is active. [0003] EEG is the electrical wave change when recording brain activity, which is the overall reflection of the electrophysiological activity of brain nerve cells on the surface of the cerebral cortex or scalp. However, the actually collected EEG signals are very weak and are often contaminated by various artifacts, including electrocardiogram (ECG, ECG), oculoelectric artifacts, and power frequency interference. The interference of electrical artifact signals on EEG signals is particularly obvious, and often interferes with the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/372
Inventor 李杰侯丙营庄志
Owner BMC MEDICAL