A three -dimensional reconstruction control method based on the urinary system
A urinary system, three-dimensional reconstruction technology, applied in the direction of instruments, 3D modeling, image enhancement, etc., can solve the problem of inability to effectively deal with squamous effect of organs, achieve the goal of eliminating squamous effect, widening the scope of application, and improving accuracy Effect
Active Publication Date: 2022-08-05
TONGJI UNIV
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[0003] The purpose of the present invention is to provide a control method for three-dimensional reconstruction of multiple organs based on the urinary system in order to overcome the shortcomings of the prior art that cannot effectively process irregularly shaped organs and reconstruct the squamous effect in organs
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[0045] like figure 1 As shown, a multi-organ 3D reconstruction control method based on the urinary system can reflect the real structure of the organ, and the reconstructed 3D surface is smoother, including data preprocessing, surface rendering, mesh smoothing, and Unity3D model rendering. There are four stages. Specifically include the following steps:
[0046] S1. Obtain medical images of the urinary system, and obtain annotated data files after segmentation processing;
[0047] S2. According to the annotation data file, through a surface rendering algorithm based on depth-first traversal and contour line interpolation, a triangular mesh model of the medical image of the urinary system is generated;
[0048] S3. Iteratively optimizes the triangular patch mesh model through a Laplace mesh smoothing algorithm based on distance weighting and linear interpolation;
[0049] S4. According to the optimized triangular mesh model, a three-dimensional reconstruction model of the med...
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The present invention relates to a multi-organ three-dimensional reconstruction control method based on the urinary system, which specifically includes the following steps: S1, acquiring a medical image of the urinary system, and obtaining an annotation data file after segmentation processing; S2, according to the annotated data file, through depth-first traversal and contour interpolation surface rendering algorithm to generate the triangular mesh model of the medical image of the urinary system; S3, through the Laplace mesh smoothing algorithm based on distance weighting and linear interpolation, the triangular mesh model is multiplied. The second iterative optimization is performed; S4, according to the optimized triangular mesh model, a three-dimensional reconstruction model of the medical image of the urinary system is rendered through a texture mapping algorithm. Compared with the prior art, the present invention has the advantages of effectively solving the problem of irregular shapes and multiple regions of seminal vesicles and tumor organs in the urinary system that cannot be interpolated, and better eliminating the squamous effect on the surface of the three-dimensional reconstruction model.
Description
technical field [0001] The invention relates to the technical field of three-dimensional organ reconstruction, in particular to a multi-organ three-dimensional reconstruction control method based on the urinary system. Background technique [0002] At present, in order to realize the visualization of three-dimensional organs, researchers have developed many medical image processing toolkits, among which VTK+ITK and MITK are the most common. They can render 3D organ models from CT and MRI images of the cerebral cortex, ankle, lung parenchyma, blood vessels, heart, etc. through surface rendering or volume rendering. The reconstruction effect is good, but the reconstruction of multiple organs with complex and irregular shapes is rare. involved. However, some organs in the human body such as the urinary system have irregular and complex shapes, and the organs reconstructed by the existing VTK visualization technology have squamous effects, which bring challenges to the detailed...
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IPC IPC(8): G06T17/20G06T5/00G06T7/13G06T3/40
CPCG06T17/20G06T7/13G06T3/4007G06T2207/10088G06T5/70
Inventor 徐振豪何良华
Owner TONGJI UNIV