| 应用于虚拟内窥镜系统的拓扑细化算法的优化 |
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| 引用本文： | 崔宁,张彩明,刘毅.应用于虚拟内窥镜系统的拓扑细化算法的优化[J].系统仿真学报,2006,18(10):2856-2858. |
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| 作者姓名： | 崔宁 张彩明 刘毅 |
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| 作者单位： | 1. 山东大学,计算机科学与技术学院,山东,济南,250061
2. 山东大学,计算机科学与技术学院,山东,济南,250061;山东经济学院,计算机科学与技术学院,山东,济南,250014 |
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| 摘 要： | 虚拟内窥镜技术是近几年迅速发展起来的一种独特的技术。它的关键在于三维物体中心路径的提取。拓扑细化算法可以有效的提取中心路径,但是耗时很长,严重的影响了该算法的实用性。针对这一缺点,作者提出了几种改进,主要通过减少扫描图像的次数和减少体素数目等方法在不同程度上加速算法,提高了算法的效率。实验证明,改进后的算法可以快速稳定的处理体数据,很大程度上起到了优化的作用。
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| 关 键 词： | 虚拟内窥镜 中心路径 路径提取 内部体素 外部体素 拓扑细化 |
| 文章编号： | 1004-731X（2006）10-2856-03 |
| 收稿时间： | 2006-04-12 |
| 修稿时间： | 2006-08-25 |
Optimized Topological Thinning Algorithm for Virtual Endoscopy |
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| CUI Ning,ZHANG Cai-ming,LIU Yi.Optimized Topological Thinning Algorithm for Virtual Endoscopy[J].Journal of System Simulation,2006,18(10):2856-2858. |
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| Authors: | CUI Ning ZHANG Cai-ming LIU Yi |
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| Abstract: | Virtual Endoscopy (VE) is a special technique which has being developed quickly these years. The core of VE is extracting the centerline of the 3D object. Topological thinning is an efficient method to do this job, but the procedure is quite time consuming. The topological thinning algorithm was accelerated using two strategies: First, the times of scan were reduced. Second, the number of voxel was reduced. The result of the experiment proves that the optimized algorithm can deal with the data quickly and steadily. |
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| Keywords: | virtual endoscopy centerline centerline extracting voxel of object voxel of background topological thinning |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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