Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A correction method and correction system for CT image reconstruction

A CT image and algorithm technology, applied in the field of CT image reconstruction correction method and correction system, to achieve the effect of improving CT imaging quality

Active Publication Date: 2020-12-11
SHENZHEN INST OF ADVANCED TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the solution of the present invention is to solve the problems highlighted earlier

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 correction method and correction system for CT image reconstruction
  • A correction method and correction system for CT image reconstruction
  • A correction method and correction system for CT image reconstruction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047]Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings. In the specific embodiments of the present invention described below, some very specific technical features are described in order to better understand the present invention, but it is obvious that not all of them are All technical features are necessary technical features for realizing the present invention. Some specific embodiments of the present invention described below are only some exemplary specific embodiments of the present invention, which should not be regarded as limiting the present invention. Additionally, well-known techniques have not been described in order to avoid obscuring the present invention.

[0048] In the CT imaging system, the formula (1) can be obtained from the spatial geometric relationship of the CT system:

[0049] a[u,v,1] T =A[x,y,z,1] T (1)

[0050] Among them, A is the system matrix, and a is the coefficient; the ...

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 a correction method and system for CT image reconstruction, and provides a correction method for CT image reconstruction. The method is characterized by comprising the steps that according to an offset angle phi of a detector, new coordinates of any point on the detector in a fixed coordinate system XYZ are obtained; a vector formed by the origin O of space coordinates of the coordinate system XYZ and any point on the detector in the CT system conforms to the formula shown in the description; after the offset angle phi of the detector is formed, a vector formed by the origin O of space coordinates of the coordinate system XYZ and any point on the detector in the CT system conforms to the formula shown in the description, and therefore the new coordinates of any point on the offset detector in the coordinate system XYZ can be obtained. The method can be used for correcting a CT system geometric calibration method and a CT reconstruction algorithm. The correction method and system can remarkably improve the CT imaging quality and can be used for medical and industrial CT imaging.

Description

technical field [0001] The present invention relates to medical and industrial CT imaging, more particularly to a correction method and correction system for CT image reconstruction. Background technique [0002] Computed Tomography (CT for short) uses X-rays to scan specific parts of the human body at a certain thickness. Since different human tissues have different absorption capabilities for X-rays, a computer can be used to reconstruct images of the fault plane. CT is an important imaging method to obtain the internal structure information of objects in a non-destructive way. It has many advantages such as high resolution, high sensitivity and multi-level, and is widely used in various medical clinical examination fields. [0003] CT image reconstruction technology is one of the core technologies of CT imaging system, which involves many disciplines such as physics, mathematics, and computer graphics. The theory and algorithm of image reconstruction through projection a...

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): A61B6/00
CPCA61B6/5211A61B6/582
Inventor 胡战利梁栋石伟郑海荣
Owner SHENZHEN INST OF ADVANCED TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com