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Compression method, transmission method, reconstruction method and device of an electrocardiographic signal

A technology of ECG signal and compression method, which is applied in the direction of electrical components, code conversion, etc., can solve the problems of unable to set a higher compression ratio for signals, unable to obtain compression ratio, signal distortion, etc., and achieve high fidelity and small data volume , to achieve the effect of fidelity

Active Publication Date: 2017-10-03
NEUSOFT XIKANG HEALTHCARE TECH
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0017] The advantage of compressing the ECG signal by the above wavelet transform method is that the waveform is compressed and the filtering process is performed at the same time, and when the sampling compression ratio is 1 / 2, the ECG waveform data can be perfectly restored, and the compressed and restored The fidelity is very high, but in the prior art, the wavelet transform method is used to compress the ECG signal, and it is impossible to set a higher degree of compression ratio for the signal, and it is impossible to obtain a further compression ratio. For example, when the signal compression ratio is 1 / 10, the signal will be distorted, causing doctors to misdiagnose

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  • Compression method, transmission method, reconstruction method and device of an electrocardiographic signal
  • Compression method, transmission method, reconstruction method and device of an electrocardiographic signal
  • Compression method, transmission method, reconstruction method and device of an electrocardiographic signal

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Embodiment 1

[0102] This embodiment provides a method for compressing ECG signals, such as image 3 shown, including:

[0103] Step S100, performing wavelet transformation on the electrocardiographic signal to obtain first waveform data.

[0104] The first waveform data includes the time-domain data of each waveform of the electrocardiographic signal, and the time-domain data is actually a two-dimensional data, including the position data of each waveform on the time axis and the amplitude data changing with the time axis; The waveforms include signature waves.

[0105] The essence of this step is the first compression operation on the ECG signal, which refers to the original ECG signal. After the wavelet transform is performed on the electrocardiographic signal by using the wavelet transform, it not only helps to improve the compression rate of the electrocardiographic signal, but also can filter the original electrocardiographic signal to eliminate the interference information in the e...

Embodiment 2

[0184] This embodiment provides a method for transmitting ECG signals, such as Figure 9 shown, including:

[0185] Step S600, receiving the compressed ECG signal.

[0186] The compressed ECG signal is the compressed data of the ECG signal, and the compressed data may be obtained by compressing the ECG signal using the compression method as described in Embodiment 1.

[0187] Step S601, generating a data packet of the ECG signal for a fixed time period according to the ECG signal transmission protocol.

[0188] In fact, this embodiment is a solution to transmit the compressed data of the ECG signal obtained by compressing the compression method of Embodiment 1. The compressed data can be transmitted through the common transmission method of the prior art, but considering the existing technical transport protocols (such as figure 1 Shown) will affect the compression rate of the compressed data achieved by Embodiment 1. This embodiment provides a more advanced transmission sc...

Embodiment 3

[0225] This embodiment provides a method for reconstructing ECG signals, corresponding to the transmission method in Embodiment 2, such as Figure 15 shown, including:

[0226] Step S700, receiving the data packet of the transmitted ECG signal.

[0227] The transmitted data packets are the data packets in Embodiment 2.

[0228] Step S701, decoding the data packet.

[0229] Step S702, recovering the characteristic wave in the time domain, the position of the characteristic wave in the time domain is based on the order of the amplitude data of the recorded characteristic wave.

[0230] Specifically, the recovering the characteristic waves in the time domain includes:

[0231] storing said characteristic waves in the time domain;

[0232] Determining the position of the characteristic wave in the time domain based on the time domain length of the original ECG waveform data and the time domain position of the characteristic wave in the original ECG signal;

[0233] Based on t...

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Abstract

The invention relates to a compression method, a transmission method, a reconstruction method and a device for electrocardiographic signals. The compression method includes: performing wavelet transformation on the ECG signal to obtain first waveform data, the first waveform data includes time-domain data of each waveform of the ECG signal, and the waveform includes characteristic waves; The waveform data is converted into second waveform data including amplitude data of recorded sequential characteristic waves based on time domain data of the characteristic waves. The present invention can improve the compression rate of the electrocardiogram signal under the condition of ensuring the fidelity of the decompressed electrocardiogram signal, so that the compressed electrocardiogram signal is more convenient for transmission and storage.

Description

technical field [0001] The invention relates to a processing method of electrocardiographic signals, in particular to a compression method, transmission method, reconstruction method and device of electrocardiographic signals. Background technique [0002] With the improvement of modernization, most hospitals have formed medical information systems with large-scale hospital information systems, medical image archiving and communication systems, radiology information management systems, and inspection information systems. The same standard for information sharing and interaction is an urgent problem to be solved. [0003] For the long-distance transmission system that transmits physiological signals such as ECG signals, because of the huge amount of data, it is usually necessary to compress the waveform signal. [0004] ECG signal, also known as ECG (ECG is the abbreviation of electrocardiogram) signal, is the heart in each cardiac cycle, which is excited successively by the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M7/30
Inventor 叶飞郭冰李永春李强单日强
Owner NEUSOFT XIKANG HEALTHCARE TECH
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