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Method and apparatus for drafting medical image body

A medical image and volume rendering technology, applied in the field of volume rendering, can solve problems such as inability to solve tissue calibration, slow rendering speed, and transfer function affecting rendering effect, so as to improve rendering speed and rendering quality, solve calibration problems, and reduce cost. Effect

Inactive Publication Date: 2009-02-25
NEUSOFT CORP
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Problems solved by technology

[0004](1) For large-scale volume data (such as 5123), the volume rendering algorithm is implemented on an ordinary PC, although the optimized , its drawing speed is still slow and cannot meet the requirements of real-time drawing;
[0005](2) There is no better data classification method, and the design of the transfer function directly affects the rendering effect;
[0006](3) Unable to resolve more than three tissues

Method used

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  • Method and apparatus for drafting medical image body
  • Method and apparatus for drafting medical image body
  • Method and apparatus for drafting medical image body

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Embodiment Construction

[0058] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.

[0059] GPU is an image processing processor, which reduces the dependence of image processing calculations on the CPU. Its work efficiency is much higher than that of the CPU during image processing, and it replaces some of the work that originally belonged to the CPU. Therefore, the medical image volume rendering method in the embodiment of the present invention performs volume rendering based on GPU, loads volume data into video memory, generates volume data textures corresponding to different tissues, establishes transfer functions corresponding to each tissue, and utilizes the transfer function and The volume data texture draws images corresponding to each organization, and can effectively improve the renderi...

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Abstract

The invention discloses a medical image volume rendering method and a device thereof. The method comprises the following steps: firstly, volume data are loaded into a display memory, and volume data textures corresponding to different tissues are generated; a transmission function corresponding to each tissue is created; and an image corresponding to each tissue is respectively rendered by utilizing the transmission function and the volume data textures. The invention can be utilized to improve the rendering speed and the rendering quality.

Description

technical field [0001] The invention relates to volume rendering technology, in particular to a medical image volume rendering method and device. Background technique [0002] Volume rendering, also known as direct volume rendering, is a 3D data field visualization method that has developed rapidly in recent years. Volume rendering does not generate intermediate primitives, and directly generates a two-dimensional image of the screen from a three-dimensional data field. First, the initial continuous three-dimensional data field is obtained by reconstructing the discrete three-dimensional data field, and then resampled in the continuous three-dimensional data field to obtain the function value of the sampling point. For new sampling points, classification and color assignment are carried out according to the set opacity and color model, and finally the rendering result image is obtained through image synthesis according to the volume rendering optical model. [0003] Since ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/10G06T15/08
Inventor 赵大哲杨金柱栗伟冯朝路耿欢
Owner NEUSOFT CORP
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