Method for extracting electrocardio characteristics, method and device for identifying electrocardiogram beat
A technology of feature extraction and electrocardiography, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as large amount of calculation, achieve the effect of small calculation workload and improve the accuracy of recognition
Active Publication Date: 2019-07-19
UNIVERSITY OF MACAU
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[0004] In view of this, the purpose of the embodiments of the present application is to provide an ECG feature extraction method, a heartbeat recognition method and a device to solve the above-mentioned technical problem of large amount of computation due to the extraction of many useless features during feature extraction.
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[0038] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.
[0039] It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0040] Before this application, the traditional method for extracting ECG features has the problems of excessive computational complexity and high computational cost. In addition, since the dimension of the feature vector is too high, the computational load of the classifier is increased. Therefore, the present application preprocesses the ECG signal to obtai...
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The embodiment of the invention provides a method for extracting electrocardio characteristics, a method and device for identifying electrocardiogram beat. The method comprises the following steps: acquiring an electrocardio signal to be processed, and processing the electrocardio signal to be processed to acquire at least one first electrocardiogram beat message corresponding to the electrocardiosignal to be processed; respectively performing adaptive Fourier decomposition on each first electrocardiogram beat message to obtain first time-frequency representation corresponding to each first electrocardiogram message; and extracting a corresponding first instantaneous frequency characteristic according to the first time-frequency representation corresponding to each first electrocardiogrammessage. The device is used for executing the method. According to the embodiment of the invention, the characteristics extracted by the adaptive Fourier decomposition method has representativeness,can well reflect the type of the first electrocardiogram message, and does not have redundant or useless characteristic, and has relatively small computational effort.
Description
technical field [0001] The present application relates to the technical field of electrocardiographic signal processing, and in particular, to an electrocardiographic feature extraction method, a heart beat recognition method, and a device. Background technique [0002] Electrocardiogram (Electrocardiography, ECG) is a signal that reflects potential changes from the body surface through cardiac sensors, and is the performance of the heart's electrical activity process. ECG signals have important reference value for the study of the basic function of the heart and its pathology. The use of automatic diagnosis technology to identify and classify ECG signals can reduce the tedious work of doctors to monitor patients' ECG signals for a long time, and also provide an important foundation for the current development of portable home ECG monitoring equipment, so that users can use their own Monitoring, timely detection of abnormal heart beats, so that timely medical treatment. ...
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IPC IPC(8): A61B5/0402
CPCA61B5/7225A61B5/7264A61B5/318
Inventor 钱涛张立明谭春雨
Owner UNIVERSITY OF MACAU