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Heart-lung sound signal classification method, detection method, apparatuses, medium and computer device

A signal classification and signal detection technology, applied in the field of medical detection, can solve problems such as low inspection efficiency, and achieve the effect of simplifying inspection items and improving inspection efficiency

Active Publication Date: 2018-04-20
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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  • Heart-lung sound signal classification method, detection method, apparatuses, medium and computer device
  • Heart-lung sound signal classification method, detection method, apparatuses, medium and computer device
  • Heart-lung sound signal classification method, detection method, apparatuses, medium and computer device

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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-lung sound signal classification method, a detection method, a medium and a computer device. The heart-lung sound signal classification method includes the steps of acquiring a heart-lung sound signal to be classified, and converting the heart-lung sound signal by using a time-frequency analysis method to obtain a time-frequency signal; and performing dimensionality reduction on the time-frequency signal by using a matrix decomposition method to obtain an independent component signal; processing the independent component signal according to time-frequency masktechnology to obtain a heart sound spectrum signal and a lung sound spectrum signal; and performing inverse transform corresponding to the time-frequency analysis method on the heart sound spectrum signal and the lung sound spectrum signal to obtain a heart sound signal and a lung sound signal. In this way, the classification of the heart sound signal and the lung sound signal in the heart-lung sound signal can be realized by means of signal processing, the refined independent examination and analysis of the heart sound signal and the lung sound signal are facilitated, manual auscultation is unnecessary, examination items for heart and lung diseases can be simplified, and the efficiency of heart and lung disease examination can be therefore increased.

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 Applications(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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