A method and device for suppressing the background of X-ray images of small parts

A background suppression and line image technology, applied in image enhancement, image data processing, instruments, etc., can solve problems such as incomplete background suppression, loss of soft tissue information, and uneven background intensity, achieve good suppression effect, increase contrast difference, Effects that improve image quality

Active Publication Date: 2017-12-05
LIAONING KAMPO MEDICAL SYST
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, in order to prevent the tissue from being mistakenly judged as the background, the threshold is set relatively low. Usually, the background suppression is not complete, the background intensity after suppression is different, and some soft tissue information is lost.

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
  • A method and device for suppressing the background of X-ray images of small parts
  • A method and device for suppressing the background of X-ray images of small parts
  • A method and device for suppressing the background of X-ray images of small parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0073] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0074] At present, X-ray equipment generates X-rays by bombarding the anode target (usually a tungsten target) with high-speed electrons emitted by the cathode filament in the bulb. X-rays are not generated on the surface of the anode target, but are produced by its atoms inside the anode target. interaction with high-speed electrons. The path that X-rays take when they emerge from the inside of the anode target varies according to their exit angle, such as figure 1 As shown, this effect is the heel effect. According to the Lambert-Beer theorem I=I 0 e -μl , that is, in the case of the same material attenuation coefficient, the intensity of the ray is inversely proportional to the index of the path length of the ray in the material, so the intensity of the X-ray emitted from the anode target gradually decreases along the direction of the hi...

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 discloses a method and a device for suppressing the background of an X-ray image of a small part. The method comprises: extracting rough background information from an original image; obtaining fine background information according to the rough background information; synthesizing a background image according to the fine background information; Remove the full background image from the original image. The device includes a rough background extraction module, a fine background extraction module, a background image synthesis module and a background removal module. The present invention adopts an X-ray image background extraction method for small parts, which can effectively remove the background information in the effective area of ​​the image, increase the display proportion of soft tissue and detail information in the image, and improve the quality of the image.

Description

technical field [0001] The invention relates to the technical field of X-ray digital image processing, in particular to a method for suppressing the background of small-part X-ray images and a device for suppressing the background of small-part X-ray images realized by the method. Background technique [0002] In the X-ray imaging process, since the ray source is not absolutely aligned with the center of the detector, there is usually a certain position deviation, that is, the X-ray beam is not irradiated vertically on the detector, but there is a certain inclination angle, and The difference in the distance between the focal point and the different positions of the flat-panel detector leads to non-uniform distribution of X-rays on the detector. In addition, the heel effect unique to the high-speed electron bombardment of the anode target to generate X-rays, the length difference of the filtering path passed by the X-rays, and the scattered X-ray photons generated by the int...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
Inventor 周传丽张启林孙洪文金荣飞刘卓
Owner LIAONING KAMPO MEDICAL SYST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap