| 一种改进的基于二次误差测度的网格简化算法 |
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| 引用本文： | 吴韦力,王博亮,黄绍辉. 一种改进的基于二次误差测度的网格简化算法[J]. 厦门大学学报(自然科学版), 2007, 46(3): 337-341 |
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| 作者姓名： | 吴韦力 王博亮 黄绍辉 |
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| 作者单位： | 厦门大学计算机科学系,福建,厦门,361005 |
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| 基金项目： | 国家自然科学基金;卫生部联合基金;福建省科技厅科研项目;福建省厦门市科技计划 |
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| 摘 要： | 在医学图像三维表面建模中,会产生大量的三角面,难以在普通PC机上进行实时渲染.为了解决这个问题,本文作者提出一种改进的基于二次误差测度的网格简化算法.通过对顶点进行分类,在简化过程中更好地保持了模型的细节特征,同时考虑了网格中三角面的分布情况,减小了几何误差.结果表明,算法既保持了原算法快速的优点,又满足了医学图像处理对逼真度和网格质量的较高要求.
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| 关 键 词： | 网格简化 边折叠 二次误差测度 |
| 文章编号： | 0438-0479(2007)03-0337-05 |
| 修稿时间： | 2006-08-28 |
A New Mesh Simplification Algorithm Based on Quadric Error Metrics |
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| WU Wei-li,WANG Bo-liang,HUANG Shao-hui. A New Mesh Simplification Algorithm Based on Quadric Error Metrics[J]. Journal of Xiamen University(Natural Science), 2007, 46(3): 337-341 |
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| Authors: | WU Wei-li WANG Bo-liang HUANG Shao-hui |
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| Affiliation: | Department of Computer Science,Xiamen University,Xiamen 361005,China |
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| Abstract: | During 3D medical image reconstruction,many triangles were produced,which were beyond the rendering capability of common PC.In order to solve the problem,this paper put forward an improved mesh simplification algorithm based on quadric error metrics.The algorithm,by classifying the vertices,preserved the specific features of the model during the process of simplification.Meanwhile,how triangles were distributed in the mesh was also taken into consideration and thus reduced geometric error.It has been proved that the new algorithm not only maintains high efficiency of the original algorithm,but also meets higher requirements of medical image processing in terms of fidelity and mesh quality. |
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| Keywords: | mesh simplification edge collapse quadric error metrics |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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