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Method for carrying out three-dimensional reconstruction on intestinal canal by using VTK (Visualization Tool Kit)

A three-dimensional reconstruction and intestinal technology, applied in the field of intestinal three-dimensional reconstruction, can solve problems such as difficulties in three-dimensional models, affecting the accuracy of disease diagnosis and treatment, and achieve the effect of reducing the amount of redundant data, reducing the amount of calculation, and simplifying the calculation.

Inactive Publication Date: 2012-07-18
SHANGHAI UNIV
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Problems solved by technology

However, to accurately determine the spatial position, size, geometric shape, and spatial relationship with the surrounding biological tissues of the lesion, it is very difficult for doctors to imagine a real three-dimensional model in their minds only through two-dimensional tomographic images, thus affecting The accuracy of disease diagnosis and treatment

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  • Method for carrying out three-dimensional reconstruction on intestinal canal by using VTK (Visualization Tool Kit)
  • Method for carrying out three-dimensional reconstruction on intestinal canal by using VTK (Visualization Tool Kit)
  • Method for carrying out three-dimensional reconstruction on intestinal canal by using VTK (Visualization Tool Kit)

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Embodiment approach

[0038] Its implementation method is as follows:

[0039] Select a window with an odd number of pixels on the image, sort the pixels covered by the window by size, the gray value in the middle of the gray sequence is the median value, and use it to replace the original gray value of the corresponding pixel in the center of the window.

[0040] (2) For the CT image, the segmentation method combining the boundary segmentation Live-Wire method and the region growing method is used to segment the CT image of the intestine part, which is as follows:

[0041] The CT scan data of the human abdomen is composed of hundreds of CT images. To obtain the complete data of the intestinal tract, these hundreds of images must be segmented as a whole. Since the boundary-based segmentation cannot be used for volume data, the region-based segmentation Although it can be used for volume data, it causes over-segmentation, that is, the image is divided into too many regions. This method adopts the s...

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Abstract

The invention relates to a method for carrying out three-dimensional reconstruction on an intestinal canal by using VTK (Visualization Tool Kit). In the method, the three-dimensional reconstruction is directly carried out on the basis of VTK. The method comprises the following steps of: first, carrying out filtering and volume data segmentation on original human body CT scanning data including noise so as to obtain CT data of an intestinal canal tissue; interpolating the data in order to obtain a better reconstruction effect; interpolating the volume data by using a morphological method; and then designing an algorithm for high efficiently solving multiplanar reconstruction ambiguity according to MarchingCubes multiplanar reconstruction theory. During multiplanar reconstruction, color, scattered light and scattered light intensity are well set according to the characteristics of the intestinal canal. It is shown by experiment results that a three-dimensional intestinal canal can be realistically reconstructed at a higher reconstruction speed by using the three-dimensional intestinal canal reconstruction algorithm provided by the invention.

Description

technical field [0001] The present invention relates to a method for three-dimensional reconstruction of intestinal tract by using VTK (Visualization Toolkit), in particular to a method for three-dimensional reconstruction of CT images of intestinal tract by using VTK. Background technique [0002] Three-dimensional intestinal reconstruction is to use a set of CT tomographic images of the intestinal tract and convert them into intestinal images with intuitive three-dimensional effects through a certain algorithm, so as to better show the true three-dimensional shape of the intestinal tract. Three-dimensional intestinal reconstruction is the basis of scientific diagnosis of intestinal diseases, and it is also one of the key technologies that need to be solved in the diagnosis and treatment of intestinal diseases. [0003] Colorectal cancer is one of the most common malignant tumors in my country. The average 5-year survival rate of patients is 20%-25%. The incidence rate is ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06T15/00
Inventor 万旺根王蕊余小清王亚男马艳茹
Owner SHANGHAI UNIV
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