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Functional image volume rendering method with color fidelity

A volume rendering and functional technology, applied in the field of medical image processing, can solve problems such as color distortion, and achieve the effect of improving the efficiency of visual analysis

Pending Publication Date: 2021-10-01
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of color distortion when performing three-dimensional volume rendering on color functional image slice sequences, the present invention proposes a color-preserving functional image volume rendering method

Method used

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  • Functional image volume rendering method with color fidelity
  • Functional image volume rendering method with color fidelity
  • Functional image volume rendering method with color fidelity

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Embodiment Construction

[0041] The specific implementation manner of the present invention will be described below in conjunction with the drawings and examples.

[0042] figure 1 The processing flow of a color fidelity functional image volume rendering method according to the present invention is given, and its main steps are as follows:

[0043] Step S1: Input the color functional image slice sequence, let it be S F .

[0044] This example selects a brain SPECT-T1 slice sequence of a glioma patient from The WholeBrain Atlas dataset (http: / / www.med.harvard.edu / aanlib / home.htm) published by Harvard Medical School As input, let it be S F . from S F The slices of three different locations extracted in are taken as examples, as figure 2 (a), (b) and (c) in.

[0045] Step S2: Convert the pixel values ​​of the color slice sequence to (R, G, B, I) mode, where R, G, B are the color components of the original pixel value, and I is the brightness value of the original pixel value.

[0046] There are ...

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Abstract

The invention relates to a functional image volume rendering method with color fidelity, belongs to the field of medical image processing, and aims to solve the problem of color distortion when a color functional image slice sequence is subjected to three-dimensional volume rendering. Under the condition that a functional state medical image color slice sequence is given, the method comprises the following steps: firstly, clustering slice pixels according to colors and brightness values of the slice pixels; constructing three-dimensional volume data and a volume rendering color transfer function according to a clustering result; and finally, setting an opacity transmission function, and performing volume rendering on the constructed three-dimensional volume data to obtain a volume rendering result retaining original functional image color mapping information. According to the method, the three-dimensional morphological structure information contained in the two-dimensional functional image slice series is visually displayed through volume rendering, accurate functional metabolism information is provided through color fidelity, and the visual analysis efficiency of the functional image is improved.

Description

technical field [0001] The invention relates to a visual analysis method of medical image data, in particular to a color-preserving functional image volume rendering method, which belongs to the field of medical image processing. Background technique [0002] With the development of nuclear medicine technology, following structural images such as CT and MRI, modern medical imaging provides functional images such as SPECT and PET for clinical diagnosis. Medical functional images are obtained through molecular imaging technology. The specific imaging process is: use radioactive isotopes as tracers, inject them into the human body and make them concentrate on the organs under test, and emit The ray is used to reconstruct the image, so as to obtain the detection result of the image mode. Due to its abnormal metabolism, diseased tissue will show a different tracer uptake ability than normal tissue, resulting in imaging effects different from normal tissue. This imaging method e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/00G06K9/62
CPCG06T15/005G06T2210/41G06F18/23213
Inventor 张文耀付靖妃王成
Owner BEIJING INSTITUTE OF TECHNOLOGYGY