| 基于MC算法的螺旋CT扫描数据的三维重建 |
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| 引用本文： | 朱经纬,蒙培生,王乘.基于MC算法的螺旋CT扫描数据的三维重建[J].华中科技大学学报(自然科学版),2002,30(3):74-76. |
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| 作者姓名： | 朱经纬 蒙培生 王乘 |
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| 作者单位： | 华中科技大学土木工程与力学学院,430074 |
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| 摘 要： | 在Marching Cubes(MC)算法的基础上，针对螺旋CT扫描数据的特点，提出一种改进的三维表面的快速绘制方法。通过使用体元描述表，并且对体元数据进行二值化处理，简化了数据，在绘制过程中，根据形体拓扑结构，优化了体元内部的等值面形成算法，提高了三维重建的速度和质量。
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| 关 键 词： | MC算法 螺旋CT扫描 三维重建 计算机图形学 体元数据 二值化 CT诊断 |
| 文章编号： | 1671-4512(2002)03-0074-03 |
| 修稿时间： | 2001年9月12日 |
Rebuilding data of spiral CT on three dimensions based on maching cubes |
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| Zhu Jingwei Men Peisheng Wang Cheng Postgraduate, College of Civil Eng. & Mechanics,Huazhong Univ. of Sci. & Tech.,Wuhan ,China..Rebuilding data of spiral CT on three dimensions based on maching cubes[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2002,30(3):74-76. |
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| Authors: | Zhu Jingwei Men Peisheng Wang Cheng Postgraduate College of Civil Eng & Mechanics Huazhong Univ of Sci & Tech Wuhan China |
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| Institution: | Zhu Jingwei Men Peisheng Wang Cheng Postgraduate, College of Civil Eng. & Mechanics,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | In accordance with the characteristics of the data of the spiral CT scanning, an improved algorithm for construction on three dimensional surface based on Maching Cubes is proposed. The data field of the spiral CT scanning is one of regular data fields. The table of the cube is described and the data of the cube is binarily converted. The data is predigested. In the process of rendering, based on the topology of the spacing polygon, which is from point to line and from line to polygon, the algorithm for building isosurface in the cube is optimized. Both the efficiency and image quality of the construction on three dimensional surface are improved. |
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| Keywords: | graphics spiral CT three dimension visualization regular data field |
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