Four-dimensional-computed tomography (4D-CT) image data interlayer interpolation method for lung

A 4D-CT, image data technology, applied in the field of medical image processing, can solve the problems of blurred edges, blood vessel discontinuity and partial volume effect can not be effectively improved, so as to reduce image artifacts, less discontinuity and Partial volume effect, effect of clear anatomy

Inactive Publication Date: 2014-07-09
SOUTHERN MEDICAL UNIVERSITY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, blurred edges and undesirable artifacts are unavoidable, and its vascular discontinuity and partial volume effects cannot be effectively improved

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
  • Four-dimensional-computed tomography (4D-CT) image data interlayer interpolation method for lung
  • Four-dimensional-computed tomography (4D-CT) image data interlayer interpolation method for lung
  • Four-dimensional-computed tomography (4D-CT) image data interlayer interpolation method for lung

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] specific implementation plan

[0025] figure 1 The specific flow of the method of the present invention is shown, and the processing process of the method of the present invention is described in detail below in conjunction with a 4D-CT sequence image with 10 phases. The specific steps of the lung 4D-CT image data interlayer interpolation method are as follows:

[0026] (1) Read the lung 4D-CT image data, which is composed of 10 lung 3D-CT image data with different phases;

[0027] (2) Use linear interpolation technology to interpolate and calculate Y for every two adjacent layers in the first phase 3D-CT image data u and Y d A plurality of intermediate layer data Y, the specific form is: Y=(Y u +Y d ) / 2, where Y is the middle layer image, Y u and Y d It is two adjacent layers of images, the 3D-CT image has a total of 104 layers, and 103 layers of intermediate layer images are interpolated after linear interpolation;

[0028] (3) Divide each layer image in the re...

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 an interlayer interpolation method for lung 4D-CT image data, including (1) reading a lung 4D-CT image, which is composed of multiple lung 3D-CT images with different phases; (2) by The linear interpolation calculation method reconstructs multiple intermediate layer images of each 3D-CT image; (3) divides each layer image in multiple intermediate layer images into multiple original image blocks; (4) for each 3D-CT For each original image block in the image, search for several similar image blocks that are most similar to the original image block within the range of the 4D-CT image except the other multiple 3D-CT images in the 3D-CT image; (5) pair search (6) Replace the corresponding original image block with the final output image block; (7) Operate all the original image blocks, and finally complete all 3D-CT Image interpolation process.

Description

technical field [0001] The invention relates to the field of medical image processing, in particular to an interlayer interpolation method for lung 4D-CT image data. Background technique [0002] Since lung 4D-CT data provide information related to respiratory motion, which is of great significance for guiding precise radiation therapy, it has received more and more attention in radiation therapy of lung cancer. However, considering the risk of radiation, lung 4D-CT data can usually only obtain a limited number of scan layers, which makes the inter-layer resolution of the data too large, resulting in low longitudinal (Z-axis direction) resolution. Such low-resolution data often introduce visual artifacts, such as blood vessel discontinuity and partial volume effects, and 4D-CT image data is composed of multiple 3D-CT image data with different phases. [0003] The method to improve the resolution between image layers is mainly interpolation. The commonly used interpolation ...

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): A61B6/03G06T1/00
Inventor 张煜冯前进陈武凡
Owner SOUTHERN MEDICAL UNIVERSITY
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