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不规则网格的小波多分辨率分析

Wavelet-Based Multi-Resolution Analysis of Irregular Meshes
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摘要 Lounsbery提出了一种网格渐进压缩的三角形网格多分辨率分析方法,但它只能应用于规则的三角形网格,且包含了重新网格化的过程。为了解决该问题,基于小波变换,扩展了Lounsbery的方法。该算法直接对不规则网格进行渐进压缩,得到了不同分辨率的网格。在此过程中还可以基于三角形网格的几何信息,对三角形网格进行优化,使之更加相似,从而使算法得到了改善。实验结果表明,算法速度快,效果良好,有一定的实用性。 Lounsbery has brought out a multi-resolution analysis scheme for triangle meshes, but it can only be applied to the regular triangle meshes, and covers a remeshing of the existing 3D data. In order to solve the problem, we extend Lounsbery＇s scheme by using the wavelets. In the algorithm, the irregular meshes can be directly compressed, and then multi-resolution meshes can be obtained. Based on the geometry of the processed meshes, the triangle meshes have been optimized, and the output became mo^e similar. The results indicate that the proposed algorithm has a good speed, efficiency and practical values.
作者 顾耀林 黄加强
机构地区 江南大学信息工程学院
出处 《工程图学学报》 CSCD 北大核心 2007年第1期60-65,共6页 Journal of Engineering Graphics
关键词 计算机应用 网格简化 多分辨率分析 小波 不规则网格 computer application mesh simplification multi-resolution analysis wavelets irregular meshes
分类号 TP391 [自动化与计算机技术—计算机应用技术]
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参考文献12

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工程图学学报
2007年 第1期

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