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Real-time electrocardiogramclassification method based on random projection

A technology of random projection and electrocardiogram classification, which is applied in the interdisciplinary field of biomedicine and computer science, can solve problems such as inability to classify in real time, achieve the effects of improving algorithm efficiency and data processing capabilities, accurate classification results, and reducing misjudgment rates

Inactive Publication Date: 2016-05-04
SICHUAN UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention is to provide a method for classifying ECG signals to solve the contradiction between the complexity and accuracy of feature extraction and the problem that it cannot be classified in real time

Method used

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  • Real-time electrocardiogramclassification method based on random projection
  • Real-time electrocardiogramclassification method based on random projection
  • Real-time electrocardiogramclassification method based on random projection

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Embodiment Construction

[0021] The sparse projection-based real-time ECG signal classification method provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0022] figure 1 It is a flow chart of the heartbeat signal classification method, including the following steps:

[0023] (1) Data preprocessing: filter the multi-lead and each lead ECG signal to remove power frequency interference and baseline drift; waveform detection and waveform segmentation; standardize the segmented heartbeat data;

[0024] (2) Feature extraction: sparse projection feature + weight RR interval feature

[0025] (3) Classification: Divide the feature data into training data and test data, the training data is used for classification modeling, and the test data is put into the modeled classifier for simulation testing;

[0026] (4) Decision-making classification: multi-lead classification result data fusion, using probability function for final classification.

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Abstract

The invention requests to protect a real-time electrocardiogram classification method based on random projection, and aims to solve the problems of data acquisition and computation and power consumption transmission with which a remote electrocardiogram monitoring system faces and the problem that electrocardiogram cannot be classified in real time. Five types of heartbeat are classified into normal pulsation, atrial premature beat, ventricular premature beat, left bundle branch block and right bundle branch block. The method comprises the following steps: (1) data preprocessing; (2) characteristic extraction: on the basis of a compressed sensing principle, compressing data, calculating an RR interval and an RR weight, and splicing characteristic vectors to form second characteristics; (3) classification: dividing secondary characteristic data into training data and test data, wherein the training data and the test data are independently used for modeling ant testing; and (4) decision classification: carrying out multiple-lead classification result data fusion. The step of data preprocessing comprises the following specific steps: 1) filtering an electrocardiosignal, and removing interference; 2) carrying out waveform detection and segmentation; 3) carrying out data standardization. The electrocardiogram data classification method provided by the invention is accurate in a classification result, and improves data processing capability.

Description

technical field [0001] The invention relates to the interdisciplinary field of biomedicine and computer science, in particular to a method for classifying dynamic electrocardiographic data. Background technique [0002] The latest statistics from the World Health Organization (WHO) show that heart disease has been the leading cause of death. Although the traditional ECG monitoring system can effectively reduce the mortality of heart disease patients, it cannot monitor the ECG signals of patients in real time because it cannot be monitored remotely. However, heart disease is hidden and latent, and it is difficult to show it on the ECG when it is not onset. The onset is short-lived, often lasting only tens of seconds. , ECG returned to normal. Doctors cannot diagnose patients in time and delay treatment of diseases. Therefore, some patients need to carry a 24-hour Holter to collect ECG data 24 hours a day. Moreover, with the current development of information science and m...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06F2218/12
Inventor 李智陈珊珊刘佳明
Owner SICHUAN UNIV
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