Unlock instant, AI-driven research and patent intelligence for your innovation.

Electrocardiogram image inclination degree correcting method

A correction method and electrocardiogram technology, applied in the field of image processing, can solve problems such as poor robustness and large amount of calculation

Inactive Publication Date: 2014-10-15
UNIV OF SHANGHAI FOR SCI & TECH
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the problems of relatively large amount of calculation and poor robustness of the currently commonly used inclination correction methods, and proposes a method for inclination correction of electrocardiographic images, which can quickly and accurately detect inclination images based on frequency domain image processing technology The method is simple and practical, and it is an effective method for correcting the inclination of ECG

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electrocardiogram image inclination degree correcting method
  • Electrocardiogram image inclination degree correcting method
  • Electrocardiogram image inclination degree correcting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The method directly detects the spectrum image of the tilt image, calculates the average amplitude in different directions in the spectrum image, and obtains the tilt angle based on the method of calculating the maximum value of the amplitude. The method is simple and practical, can quickly and accurately detect the tilt angle of the tilted image, and is an efficient method for correcting the tilt of the electrocardiographic image. The method proposed by the present invention mainly includes two aspects: detecting the tilt angle of the image and rotating and correcting the original tilted image according to the tilt angle.

[0030] Since the grid background is the most important and prominent component in the ECG image, it also has specific and obvious features in the spectrum image. Such as figure 2 , 3 , Spectrograms b), d) and f) in 4 all have two vertically intersecting high-intensity spectral lines, which have a direct correspondence with the grid background in ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an electrocardiogram image inclination degree correcting method. According to the method, firstly, an inclined image needs to be subjected to Fourier transformation to obtain a spectral image of the inclined image; then, amplitude spectrum components in the spectral image are extracted and are subjected to logarithmic transformation; and the average amplitude in different directions in the spectral image is calculated, and in addition, an inclination angle is obtained on the basis of a maximum amplitude value solving method. The electrocardiogram image inclination degree correcting method has the advantages that the method is simple and practical; the inclination angle of the inclined image can be fast and accurately detected; and the final correcting result also shows that the method is really an effective method for correcting the inclination degree of an electrocardiogram image.

Description

technical field [0001] The invention relates to an image processing technology, in particular to a method for correcting the inclination of an electrocardiographic image based on a frequency domain image processing technology. Background technique [0002] In the field of biomedicine, cardiovascular disease is one of the important diseases that endanger human life and health. Medical curves such as electrocardiogram, electroencephalogram, pulse diagnosis and pulse wave curve are important means for diagnosing cardiovascular and cerebrovascular diseases and many other diseases today. However, traditional paper images have disadvantages such as easy damage, color fading, and difficulty in query and maintenance. Therefore, it is very necessary to digitize paper ECG in many practical applications. [0003] For the digital processing of paper ECG images, it is first necessary to scan the paper ECG images and store them in the digital equipment. In this process, due to the inheren...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06T5/00
Inventor 陈兆学郭垚垚姚小芬
Owner UNIV OF SHANGHAI FOR SCI & TECH