A fetal heart sound processing method and processing device thereof

A processing method, fetal heart sound technology, applied in ultrasonic/sonic/infrasonic image/data processing, measuring pulse/heart rate, biological recognition mode based on physiological signals, etc., can solve the problem of unresponsive heartbeat waveform and heartbeat intensity, etc. question

Inactive Publication Date: 2019-12-06
HUAZHONG UNIV OF SCI & TECH
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  • Application Information

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Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a fetal heart sound processing method and its processing device, aiming at solving the problem that the existing fetal heart sound processing method can only obtain the heartbeat frequency but cannot reflect the heartbeat waveform and heartbeat strong and weak technical issues

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  • A fetal heart sound processing method and processing device thereof
  • A fetal heart sound processing method and processing device thereof
  • A fetal heart sound processing method and processing device thereof

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[0066] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0067] figure 1 The flowchart of the fetal heart sound processing method provided by the present invention; the fetal heart sound processing method comprises the following steps:

[0068] S1 collects fetal heart sound signals to obtain fetal heart sound data, and collects noise signals at a distance of 3-7 cm away from fetal heart sound signals to obtain noise signals.

[0069] S2 performs emp...

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Abstract

The invention discloses a fetal heart sound processing method and processing device. The method includes: obtaining fetal heart sound data and noise data; performing empirical mode decomposition on the fetal heart sound data and noise data to obtain the fetal heart sound natural mode component sequence and Noise natural mode component sequence; obtain the processed natural mode component sequence according to the fetal heart sound natural mode component sequence and noise natural mode component sequence; extract the instantaneous value of each processed natural mode component in the processed natural mode component sequence Frequency, and superimpose the processed natural mode components with instantaneous frequency between 20Hz and 200Hz to obtain the combined natural mode components; perform noise reduction processing on the combined natural mode components to obtain heartbeat waveforms, and extract the combined natural mode components The fetal heart rate is obtained from the first heart sound feature and the second heart sound feature, and the present invention can obtain both the fetal heart rate and the heartbeat waveform of the fetus, and the display result is clearer and more intuitive.

Description

technical field [0001] The invention belongs to the technical field of fetal heart rate monitoring, and more particularly relates to a fetal heart sound processing method and a processing device thereof. Background technique [0002] Fetal heart rate inspection is a necessary item for routine prenatal examination in hospitals, and it is also an important indicator for clinical judgment of fetal health status. Timely and accurate monitoring of fetal heart rate is an important measure to ensure the health of pregnant women and fetuses. [0003] At present, fetal heart rate detection is mostly performed by fetal heart rate monitors, and most of the existing fetal heart rate monitors use ultrasound and Doppler ultrasound. However, in actual use, it is found that there are still some shortcomings. Couplant-assisted, there is a problem of radiation intensity, it can only perform simple signal conversion, it cannot detect the strength or abnormality of the heartbeat, and cannot ref...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00A61B8/02A61B8/08
CPCA61B8/02A61B8/0866A61B8/488A61B8/5207G06V40/10G06V40/15G06F2218/10G06F2218/04
Inventor 余国义康帅灵郑加章
Owner HUAZHONG UNIV OF SCI & TECH
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