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The Research of Three-dimensional Visualization of Liver Pipeline Structure in Medical Image Processing

Abstract

肝内管道系统是一个相互间联系紧密并且解剖结构复杂多变的多层次的结构整体。正是这种复杂的管道系统及其生理和病理变异,决定了肝脏外科手术的难度。 移动立方体(MC)算法是三维重建的一种经典算法。本文针对MC算法所存在的算法效率低下等缺点分析其根本原因,提出了一种基于6邻面的表面追踪算法来对该算法的运行效率进行改进,并实现肝脏门静脉的三维可视化。实验结果表明,改进的MC方法在保证三维重建效果的前提下,算法的效率得到了明显的提高。 MC算法重建出的血管的表面比较粗糙,本文提出了一种几何模拟的血管三维可视化方法,利用小圆台拼接拟合血管,实现了肝脏管道的三维可视化。实验结果表明,该方法的显示结果视觉质...Intrahepatic pipeline system is a whole structure that closely linked to each other, within complex changing anatomical structure. It is this complex piping system and its physiological and pathological variation, determine the difficulty of liver surgery. Marching Cubes (MC) algorithm is a classical three-dimensional reconstruction algorithm. This paper analyzed the root causes of defects of the...学位:工学硕士院系专业:信息科学与技术学院计算机科学系_计算机应用技术学号:2302008115326

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