Shear mapping deformable body drawing method based on anisotropic body data

An anisotropic volume and volume data technology, applied in the field of image processing, can solve problems affecting image quality, achieve the effect of satisfying speed and quality, high graphics rendering quality, and improving rendering speed

Inactive Publication Date: 2010-10-06
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF5 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Image interpolation is a very arbitrary problem. An inappropriate interpolation algorithm directl

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
  • Shear mapping deformable body drawing method based on anisotropic body data
  • Shear mapping deformable body drawing method based on anisotropic body data
  • Shear mapping deformable body drawing method based on anisotropic body data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] The present invention samples the above technical solutions, utilizes the VC development environment and the OpenGL graphic library, and realizes the whole algorithm. The data source used MRI images in DICOM format and simple skull data in binary format for testing, and all of them drew ideal 3D images, and the real-time drawing speed can also be achieved when interacting with the mouse.

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 shear mapping deformable body drawing method based on anisotropic body data, belonging to the technical field of image processing and comprising the following steps of constructing a three-dimensional data field, shear mapping, deforming and decomposing, resampling, synthesizing an intermediate image, deforming to obtain the final image, and the like. The invention is mainly improved on the steps of coordinate transformation, resampling, opacity correction and the like of an original shear mapping and deforming algorithm, can realize isotropy without cross-section interpolation operation after image data are constructed into a logic three-dimensional data field, and can directly implement body drawing operation based on an anisotropic data field, thereby not only reducing the preprocessing time, but also improving the data precision of images for drawing. In addition, a variable resampling mode is adopted in the implementation process, the sampling rate is reduced and the drawing speed is improved during mouse interaction, the sampling rate is increased and the image quality is improved when a final image is drawn, and meanwhile, the requirements for drawing speed and image precision are met.

Description

technical field [0001] The invention belongs to the technical field of image processing, and relates to a visualized three-dimensional image, in particular to a volume rendering method for directly performing staggered deformation on anisotropic volume data. Background technique [0002] The auxiliary role of medical images in doctors' diagnosis is becoming more and more obvious. Transforming the sequence of two-dimensional slice images into three-dimensional images with intuitive three-dimensional effects can greatly improve the accuracy and scientificity of medical diagnosis and treatment planning. Traditional 3D visualization methods are divided into surface rendering and volume rendering, and volume rendering mainly includes: [0003] 1. Raycasting method: Under the set viewing direction, a ray is emitted from each pixel of the screen and passes through the three-dimensional data field, resampling and image synthesis are performed along the ray, and finally the image val...

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): G06T15/00
Inventor 解梅李郭
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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