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J-Wave Detection and Classification Method Based on Extended Kalman Filter

A technology of extended Kalman and classification methods, applied in the field of J wave detection and classification based on extended Kalman filtering, and can solve the problem of no J wave identification and classification methods, etc.

Active Publication Date: 2017-11-21
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0004] In order to solve the problem that there is no effective J-wave identification and classification method, the present invention provides a J-wave detection and classification method based on extended Kalman filtering

Method used

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  • J-Wave Detection and Classification Method Based on Extended Kalman Filter
  • J-Wave Detection and Classification Method Based on Extended Kalman Filter
  • J-Wave Detection and Classification Method Based on Extended Kalman Filter

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Embodiment Construction

[0016] The J-wave detection and classification method based on extended Kalman filter comprises the following steps:

[0017] Obtain the phase and frequency information according to the original electrocardiogram, and then approximate the electrocardiogram waveform through Gaussian fitting to obtain the amplitude of each moment in the fitted electrocardiogram waveform;

[0018] The amplitude of each moment in the fitted electrocardiogram waveform is used as the measured value of the extended Kalman filter, and the amplitude of each moment in the original electrocardiogram is taken as the true value, and the extended Kalman filter is performed, and the J wave frequency band in the electrocardiogram waveform is measured at each moment The difference between the measured value and the true value;

[0019] Analyze the output results, if the difference between the measured value and the true value > 0.05mv, then there is a J wave in the ECG waveform, otherwise, there is no J wave i...

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Abstract

The present invention relates to the detection and identification of J wave and the classification method of danger level, specifically the J wave detection and classification method based on extended Kalman filter, comprising the following steps: according to the phase and frequency information, a fitted electrocardiogram is obtained through Gaussian fitting; The amplitude at each moment in the electrocardiogram waveform is used as the measurement value of the extended Kalman filter, and the amplitude at each moment in the original electrocardiogram is taken as the true value, and the extended Kalman filter is performed, and the measured value at each moment of the J wave frequency band in the electrocardiogram waveform Make a difference with the true value; analyze the output results, and then judge whether there is a J wave in the ECG waveform, and if there is a J wave, the type of the J wave. The present invention hopes to make the detection of J waves intelligent and popular through the method of signal processing. At the same time, qualitative and quantitative detection of J waves can also help doctors make a correct diagnosis, so as to formulate a reasonable and feasible treatment plan.

Description

technical field [0001] The invention relates to a method for detecting and identifying J waves and classifying dangerous levels, in particular to a method for detecting and classifying J waves based on extended Kalman filtering. Background technique [0002] The J point on the ECG refers to a sudden turning point at the junction of the QRS complex and the ST segment, which marks the end of ventricular depolarization and the beginning of repolarization. The pause after the J point is called the J wave (eg figure 1 shown). J wave in the electrocardiogram presents spike-shaped, setback-shaped or hump-shaped waveform potential changes. If the J wave is peaked, the duration is <0.02s, and the amplitude is <0.2mv, it is often accompanied by early repolarization syndrome, and most of them belong to the normal variation J wave; >0.2mv, and associated with organic heart disease, mostly belongs to abnormal J wave. According to current research, the risk level of J wave ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/0452
Inventor 李灯熬马伟赵菊敏
Owner TAIYUAN UNIV OF TECH
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