Cardiopulmonary sound signal classification method, detection method, device, medium and computer equipment

A technology of signal detection and heart and lung sounds, applied in the field of medical detection, can solve the problems of low inspection efficiency and achieve the effect of improving inspection efficiency

Inactive Publication Date: 2021-10-22
GUANGDONG XIAN JIAOTONG UNIV ACADEMY +1
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Problems solved by technology

[0004] Based on this, it is necessary to address the problem of low inspection efficiency and provide a cardiopulmonary sound signal classification method, detection method, device, medium and computer equipment that can improve the efficiency of cardiopulmonary disease inspection

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  • Cardiopulmonary sound signal classification method, detection method, device, medium and computer equipment
  • Cardiopulmonary sound signal classification method, detection method, device, medium and computer equipment
  • Cardiopulmonary sound signal classification method, detection method, device, medium and computer equipment

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Embodiment Construction

[0034] refer to figure 1 , in one of the embodiments, a kind of cardiopulmonary sound signal classification method is provided, comprising the steps of:

[0035] S110: Obtain the heart-lung sound signal to be classified, and convert the heart-lung sound signal by using a time-frequency analysis method to obtain a time-frequency signal.

[0036] The heart-lung sound signal is a mixed and superimposed signal of heart sound and lung sound; specifically, the acquired heart-lung sound signal may be a signal after denoising processing. For example, the input heart and lung sound signal after being collected and denoised by the heart and lung sound collection device is received. Time-frequency analysis method, as a method of time-frequency joint domain analysis, is a powerful tool for analyzing time-varying non-stationary signals; for example, time-frequency analysis methods include Hilbert-Huang transform, short-time Fourier transform and continuous wavelet transform . By using t...

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Abstract

The invention relates to a heart and lung sound signal classification method, a detection method, a medium and computer equipment. The cardiopulmonary sound signal classification method includes: obtaining the cardiopulmonary sound signal to be classified, using a time-frequency analysis method to convert the cardiopulmonary sound signal to obtain a time-frequency signal; using a matrix decomposition method to reduce the dimension of the time-frequency signal to obtain an independent component signal; The frequency mask technology processes the independent component signals to obtain heart sound spectrum signals and lung sound spectrum signals; performs inverse transformation corresponding to the time-frequency analysis method on the heart sound spectrum signals and lung sound spectrum signals to obtain heart sound signals and lung sound signals. In this way, the classification of heart and lung sound signals, center sound signals and lung sound signals can be realized through signal processing, which is convenient for fine inspection and analysis of heart sound signals and lung sound signals, does not require manual auscultation, and can simplify the inspection items of heart and lung diseases , so as to improve the inspection efficiency of cardiopulmonary diseases.

Description

technical field [0001] The invention relates to the technical field of medical detection, in particular to a heart-lung sound signal classification method, detection method, device, medium and computer equipment. Background technique [0002] In medical diagnosis, doctors usually need to diagnose patients with heart and lung diseases based on heart and lung sounds. Heart sounds reflect the health of the heart, and lung sounds reflect the health of the respiratory organs. [0003] In the traditional way of diagnosing cardiopulmonary diseases, doctors use auscultation equipment to stick near the patient's heart and lungs to listen to the heart and lung sounds that represent the health of the heart and lungs. Doctors are required to have extensive professional knowledge and auscultation experience. However, the heart and lung sounds that can be obtained through auscultation are the aliasing of heart sounds and lung sounds. This kind of sound signal mixed with heart and lung sou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L25/51A61B7/04
CPCA61B7/003A61B7/04G10L25/51
Inventor 罗狄锋张宏君吴和智卢伟健吴贺勇
Owner GUANGDONG XIAN JIAOTONG UNIV ACADEMY
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