X-ray digestive tract image resolution evaluation method based on human anatomic structure

Abstract

The purpose of the invention is to provide an X-ray digestive tract image resolution evaluation method based on a human anatomic structure. The X-ray digestive tract image resolution evaluation method comprises the following steps: (1) obtaining an area of interest; (2) carrying out image segmentation based on a threshold value; (3) extracting edges of an anatomic structure; (4) fitting an edge curve; (5) calculating edge smoothness. According to the X-ray digestive tract image resolution evaluation method, the edges of the anatomic structure can be automatically extracted, the smoothness can be automatically calculated and the image resolution evaluation can be quickly finished independent of subjective experience. In comparison with a method of employing a special evaluation model, the X-ray digestive tract image resolution evaluation method does not need to design a processing evaluation model, and the image resolution evaluation can be finished quickly, conveniently and exactly by only using the characteristics of the human anatomic structure. In comparison with a method of designing special low-dose X-ray imaging equipment, the X-ray digestive tract image resolution evaluation method is applied to the conventional X-ray imaging equipment.

Description

technical field [0001] The invention relates to an image processing method, in particular to an image processing method in the medical field. Background technique [0002] Since Rontgen discovered X-rays in 1895, they have been widely used in scientific research and daily life for more than one hundred years. As a kind of image, X-ray image has been used in medicine, life science, military, various industrial sectors and engineering fields in recent years, showing a continuous growth trend. According to statistics, X-ray applications account for 60% of medical diagnostic instruments. X-ray fluoroscopy and imaging have long been widely used in hospitals. Among all kinds of high-precision medical equipment in hospitals, medical X-ray diagnosis is the earliest and most widely used medical imaging examination method. X-ray diagnosis not only has short exposure time and high spatial resolution, but also contains a huge amount of information in the image. Therefore, although o...

AI Technical Summary

Problems solved by technology

However, this kind of evaluation of image quality based on physician experience is often subjective, and it is difficult to achieve objective quantification.

If the operating physician is inexperienced and cannot judge the image clearly; or some machines have large "snowflakes" and poor image quality, the radiologist needs to operate for a long time, resulting in a long exposure time for the subject and a large amount of radiation, which will affect the subject's body. cause damage

Images