Digital biological organism modeling method based on three-dimensional super voxel description

Abstract

The invention discloses a digital biological organism modeling method based on three-dimensional super voxel description. The method comprises the following steps of firstly, carrying out format conversion, binaryzation and other preprocessing on an original medical image of an organism so as to acquire a physiological-structure peripheral region to be segmented; secondly, reconstructing a two-dimensional image sequence of the physiological-structure peripheral region to be segmented to a three-dimensional space, and using a super voxel algorithm to divide a three-dimensional image into super voxels whose sizes are similar to each other; and then, through a graph-cut algorithm based on a Gaussian mixture model, automatically segmenting the super voxels into two portions of a foreground and a background; and finally, using a surface rendering method to reconstruct the super voxels which belong to a foreground type in the three-dimensional space so as to acquire three-dimensional display of a physiological structure area to be segmented and three-dimensional display of the area in the whole organism. By using the method of the invention, a negative effect of other portions of the organism on a segmentation result is reduced; time is saved; robustness of the algorithm is increased and computation complexity of graph cut is reduced; and segmentation accuracy is increased.

Description

technical field [0001] The invention relates to the medical field of image processing, and more particularly relates to a digital physiological organism modeling method based on three-dimensional supervoxel description. Background technique [0002] The combination of medicine, information technology and computing technology, and the digitalization of biological information have become hot and frontier issues in current scientific research and application. Using information technology to realize the digitization and visualization of organisms, and finally to realize the overall accurate simulation of organisms, will have an incalculable impact on the development of medicine, biology and other organism-related disciplines. [0003] The first image dataset of a complete person (a man and a woman) was created in 1995 by the Visible Human Project (VHP) in the United States. In order to promote global application-oriented research on digitally visualized human bodies, more digit...

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Problems solved by technology

[0005] Existing 3D reconstruction methods still have limitations to a certain extent. Surface rendering details are relatively rough, and the internal structure of the rendering object cannot be displayed; volume rendering methods are complex, involving complex calculations such as lighting models, reflections, and projections. Long calculation time, almost impossible to achieve real-time processing; two-dimensional plane information segmentation reflects a high degree of localization, thus losing part of the information between adjacent frames

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