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Reconstruction Of Realistic Heart System Based On CT Image

Posted on:2014-10-28Degree:MasterType:Thesis
Country:ChinaCandidate:X Y GongFull Text:PDF
GTID:2134330422488318Subject:Education Technology
Abstract/Summary:PDF Full Text Request
Digital virtual body needs an effective way to solve the practice of clinicaleducation and treatment program planning. Construction of the three-dimensionalreconstruction and surface analytical modeling is the basic support of Virtual humantechnology.This study to build a mathematical analysis of the surface of human organson the basis of the model of human organs grid model for accurately model humanorgans physical model and physical model of the foundation. This article throughextensive literature research and expert consultation,statistics from the value of CT orCT value scope of human organs,for the visualization of specific provide CTthreshold.Based on equivalent surface rendering method, designed the system setsreconstruction of CT images from the heart to the heart of triangular mesh model andthe drawing of VTK procedure to achieve a three-dimensional visualization of thecardiac system..In view of the vascular system modeling, this article will vascularsystem as the pioneers of the frustum of a cone body, use the frustum of a cone bodymodel is put forward as a mathematical analytical model vessel segment. For eachsection of the blood vessels, this paper presents a interactive segmentation methodbased on bounding volume boxes, make full use of the person’s vision and judgmentability to implement effective segmentation of complex vascular system. According tothe principle of minimum error is presented in this vessel segment the frustum of a conebody model parameter calibration method of the model parameters calibration probleminto optimization problem to solve. For the highly nonlinear optimization problems,this paper USES genetic algorithm to solve the calibration parameters of theoptimization problem, implements the effective solution for calibration, theexperimental results show that the presented mathematical analytical modelconstruction method on the surface of the blood vessels with good accuracy.
Keywords/Search Tags:Cardiac CT image sets, Heart surface three-dimensional reconstruction, isosurface methods, The interactive vascular segment segmentation, vascular surfaceanalytical mathematical model
PDF Full Text Request
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