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Processing method of editable electrocardiogram signal

An electrocardiographic signal and processing method technology, which is applied in the field of data processing to achieve the effect of less computation

Active Publication Date: 2018-07-03
TIANJIN TELLYES SCI
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  • Claims
  • Application Information

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Problems solved by technology

The present invention adopts segmentation and different methods to fit the characteristics of different bands of ECG waveforms

Method used

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  • Processing method of editable electrocardiogram signal
  • Processing method of editable electrocardiogram signal
  • Processing method of editable electrocardiogram signal

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Embodiment Construction

[0034] The present invention will be further described below according to accompanying drawing.

[0035] Such as figure 1 — image 3 Shown is a flow chart of the method for processing ECG signals in the present invention.

[0036] Step S1: Read a complete cycle of paper-based ECG waveforms, digitize the data and extract the ECG waveform data, which is defined as MN segment, M point is the starting point of the waveform, and N point is the ending point of the waveform ;

[0037] The paper ECG waveform in this step comes from the authoritative ECG library or ECG spectrum books, select a typical ECG waveform of a cycle, use the Engauge Digitizer software to manually trace the paper ECG, and extract the ECG waveform on the ECG drawing The data uses the typical ECG waveform data as the ECG template data. The typical ECG waveform can be the ECG waveform of a normal person, or it can be the typical ECG waveform of a common disease (myocardial ischemia).

[0038] Step S2: Process ...

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Abstract

The invention relates to a processing method of an editable electrocardiogram signal. The processing method comprises the following steps: (S1) reading a paper / electronic wave form electrocardiogram in a period, and extracting electrocardiogram wave form data; (S2) processing electrocardiogram wave form data by virtue of a lowpass filtering method; (S3) determining an R wave R point position by virtue of gradient change rate maximum value and a voltage maximum value; (S4) determining a Q wave Q point position and an S wave S point position; (S5) respectively extracting control points of an MQsegment and an SN segment by virtue of a gradient activity threshold method, wherein the number ranges of the control points are respectively 3-6; and (S6) fitting and reconstructing an electrocardiogram wave form by virtue of a linear interpolation method and a secondary B sample strip method, fitting the electrocardiogram wave form by virtue of a small amount of control points, wherein the waveform has local adjustability. By utilizing a linear interpolation-secondary B sample strip combined subdivision interpolation method, the fitting of relatively sharp R waves can be realized; and events for dragging the control points through pressing down a mouse are increased, and any operation can be carried out on the control point by a user.

Description

technical field [0001] The invention belongs to the technical field of data processing, and in particular relates to a method for processing electrocardiographic signals which can be edited. Background technique [0002] The ECG signal is one of the important bioelectrical signals of the human body. It reflects the working state of the heart and reliable internal characteristic information from different levels. Through the classification and recognition of the ECG signal, it is convenient to quickly diagnose heart diseases. [0003] There are two main application directions of existing ECG waveform fitting methods: for ECG signal feature extraction, classification analysis and ECG waveform simulation; at present, the fitting and reconstruction of ECG waveforms include linear approximation and curve fitting. The waveform reconstructed by the linear approximation method is not smooth. If the approximation degree is increased, a large number of data points is required, and t...

Claims

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Application Information

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IPC IPC(8): A61B5/04
CPCA61B5/316
Inventor 关红彦马培培尚双双
Owner TIANJIN TELLYES SCI
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