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Automatic recognition of EC G ST section based on template match

A template matching and automatic identification technology, applied in the fields of electrical digital data processing, medical science, special data processing applications, etc., can solve problems such as difficulties, differences, and different electrocardiogram performance, and achieve good real-time results.

Inactive Publication Date: 2007-09-05
李楚雅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to individual differences in the human body, the performance of the electrocardiogram is different, and the performance of the electrocardiogram is also different in pathological conditions. It is difficult to find the ST segment.

Method used

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  • Automatic recognition of EC G ST section based on template match
  • Automatic recognition of EC G ST section based on template match
  • Automatic recognition of EC G ST section based on template match

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] Concrete embodiment of the present invention, a standard electrocardiogram as shown in Figure 1, according to the method of the present invention finds the ST segment wherein, and compares with reference value:

[0028] A) Use the template matching method to find the R point: There are 4 preprocessing templates in the system, and the template T (M×N) is superimposed on the searched ECG S for translation, and the search image under the template coverage is Subgraph S i，j , i, j are the coordinates of the image point in the upper left corner of this sub-image in the searched ECG S, as a reference point, use the following formula to calculate the similarity R of the reference point:

[0029] R ( i , j ) = Σ ...

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Abstract

A method based on template match for automatically recognizing the ST segment in electrocardiogram includes such steps as using template match method to search R point, S point and sequential two slope variation points J1 and J2, and defining the segment between J1 and J2 as St segment.

Description

technical field [0001] The invention relates to an identification technology of an electrocardiogram ST segment, in particular to an automatic identification method for an electrocardiogram ST segment based on template matching. Background technique [0002] The heart is a muscular pump, and cardiomyocytes produce electrical changes before producing mechanical contractions. ECG changes are transmitted to the body surface, and the enlarged ECG change curve recorded by the instrument is the electrocardiogram. [0003] The electrical excitation of a normal heart originates from the sinoatrial node, and the atrium is first excited. When the left and right atria are excited, the electrocardiograph records a positive wave with a short round head, called P wave. After that, there is a wave group, the first downward small and sharp negative wave in the wave group, called Q wave, followed by a narrow and towering upward very large sharp positive wave, called R wave, which is tight ...

Claims

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Application Information

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IPC IPC(8): A61B5/0456G06F17/00A61B5/352
Inventor 李楚雅杨益军
Owner 李楚雅
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