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Electrocardiogram signal classification and recognition method

A technology for classification and recognition, electrocardiogram signal, applied in the medical field, can solve the problems of limited nonlinear function fitting ability, limited nonlinear function fitting ability, etc., to achieve the effect of effective and more accurate classification and good social benefits

Inactive Publication Date: 2017-09-22
GUANGZHOU CITY POLYTECHNIC
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AI Technical Summary

Problems solved by technology

However, the essence of wavelet transform is just a simple integral transform, and its nonlinear function fitting ability is very limited
Another existing technology uses support vector machine (SVM). SVM can be regarded as a 3-layer radial basis network with adaptive adjustment of network structure and weights, but it is limited in the ability to fit nonlinear functions. When given Training samples, the function family that SVM can fit is completely determined, but for more complex nonlinear functions, the current SVM is powerless

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  • Electrocardiogram signal classification and recognition method

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Embodiment Construction

[0032] In this embodiment, the electrocardiographic signal classification and identification method is carried out according to the following steps,

[0033] (1) Obtain the waveform data of the two-lead electrocardiogram, and intercept the data whose length is 10 seconds according to the waveform data of the electrocardiogram as the original waveform data of the electrocardiogram;

[0034] (2) According to needs, the original ECG waveform data obtained in step (1) can be denoised. The denoising process uses a high-pass filter to remove baseline drift noise. When the noise is too high, use a low-pass Butterworth filter to remove noise interference. ;

[0035] (3) Set the number of nodes in the input layer, hidden layer, and output layer of the convolutional neural network, and randomly set the weights between nodes in adjacent layers; the typical structure of the convolutional neural network is as follows: figure 1 shown;

[0036] (4) To train the convolutional neural network...

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Abstract

The invention discloses an electrocardiogram signal classification and recognition method. The method comprises the following implementation steps that original electrocardiogram waveform data with the measurement duration of 10 seconds or above is acquired, electrocardiogram rhythm information and a PQRST waveform are extracted according to the original electrocardiogram waveform data, and digitalized data of the electrocardiogram rhythm information and the PQRST waveform is acquired; a convolutional neural network is designed and constructed and trained, the acquired PQRST waveform data is input from the input end of the trained convolutional neural network, and type data is acquired through classification of the convolutional neural network. According to the method, by means of the fitting capacity of the convolutional neural network to a complex nonlinear function, more accurate and effective classification of ECG signals is acquired, so that high risk population, sub-healthy population and undetermined-condition population of cardiovascular diseases are monitored in real time, electrocardiographic changes in normal life, work and activities are intelligently analyzed to help determine condition or catch electrocardiogram information of potential cardiac diseases, and an early warning effect is made on a patient.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to an identification method for classifying electrocardiographic signals. Background technique [0002] Hospital ECG examination, although the data accuracy is high, but can only record a segment of ECG waveform in a specific and very short period of time, for non-sustained arrhythmia, especially for transient arrhythmia and transient myocardial ischemic attack Often missed, delaying diagnosis. The 24-hour dynamic electrocardiogram (DCG) that is widely used at present can record long-term electrocardiogram (ECG) signals, but DCG has no ability to process data, cannot automatically classify signals, and cannot automatically identify pathological signals with medical significance. Wait for the 24-hour monitoring to end before the doctor can analyze the data and draw conclusions. [0003] Technologies for intelligent analysis of ECG signals are constantly evolving. By analyzing the...

Claims

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Application Information

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IPC IPC(8): A61B5/0402
CPCA61B5/7264A61B5/316A61B5/318
Inventor 岑小林陈援峰杨伟钧王晓栋
Owner GUANGZHOU CITY POLYTECHNIC
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