| 基于边界保持的非闭合细分曲面小波变换 |
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| 引用本文： | 赵罡,白杰,季宝朋,俞佳庆.基于边界保持的非闭合细分曲面小波变换[J].北京航空航天大学学报,2010,36(1):57-60. |
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| 作者姓名： | 赵罡 白杰 季宝朋 俞佳庆 |
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| 作者单位： | 北京航空航天大学机械工程及自动化学院,北京,100191;北京航空航天大学机械工程及自动化学院,北京,100191;北京航空航天大学机械工程及自动化学院,北京,100191;北京航空航天大学机械工程及自动化学院,北京,100191 |
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| 基金项目： | 国家自然科学基金资助项目(60603089);;北京市科技新星计划资助项目(2007B018) |
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| 摘 要： | 针对非闭合Loop细分曲面,提出一种小波变换的方法.该方法利用网格边界所在的平面作为映射镜面,将非闭合的网格曲面转换为具有对称形状的闭合网格曲面.在此情况下,原网格边界上的顶点变为新生成闭合网格的内部顶点,在对其进行小波变换后将镜像复制的部分去除即可得到新网格及其边界.该算法同时能够保证网格曲面边界在进行小波变换过程中始终保持在同一平面内,为基于多分辨技术的细分曲面数控加工定位面的确定带来方便.
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| 关 键 词： | 计算机应用 Loop细分小波 边界保持 |
| 收稿时间： | 2009-03-25 |
Unclosed loop subdivision wavelets transform based on boundary preserving |
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| Zhao Gang,Bai Jie,Ji Baopeng,Yu Jiaqing.Unclosed loop subdivision wavelets transform based on boundary preserving[J].Journal of Beijing University of Aeronautics and Astronautics,2010,36(1):57-60. |
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| Authors: | Zhao Gang Bai Jie Ji Baopeng Yu Jiaqing |
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| Institution: | School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | A loop subdivision wavelet transform algorithm for the unclosed mesh surface was presented.Using the plane on which the mesh boundary located as the reflection mirror,the unclosed mesh can be mirrored as a closed one with the symmetrical structure.In this case,the boundary points of the original mesh can be treated as the inner points of the new closed mesh.After the wavelet transferred,the new unclosed mesh can be achieved by removing the "virtual mirror points" of the closed mesh.Meanwhile,the plane on wh... |
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| Keywords: | computer application loop subdivision wavelets boundary preserving |
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