| 鲁棒的高阶双边滤波去噪算法 |
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| 引用本文： | 范涵奇,苗兰芳,张鑫,彭群生. 鲁棒的高阶双边滤波去噪算法[J]. 计算机辅助设计与图形学学报, 2009, 21(6) |
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| 作者姓名： | 范涵奇 苗兰芳 张鑫 彭群生 |
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| 作者单位： | 浙江大学CAD&CG国家重点实验室,杭州,310027;浙江师范大学数理与信息工程学院,金华,321004 |
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| 基金项目： | 国家九七三重点基础研究发展计划项目 |
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| 摘 要： | 提出了一种统一的局部高阶双边滤波算法.与传统的双边滤波去噪算法不同,该算法通过引入鲁棒统计理论获得模型表面较为准确的几何属性;进而在曲率空间中对包含主曲率和Frenet标架的表面几何属性进行各向异性的滤波,既有利于保持模型的细节,又能保证曲面的光滑性;与此同时,优化各个顶点的法向;最后在优化后的几何属性引导下,在几何空间中进行高阶双边滤波去噪.实验结果表明,即使在大噪声的情况下,该算法仍然能够有效地保持模型细节,避免模型的收缩和顶点漂移.
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| 关 键 词： | 噪声处理 鲁棒统计 曲率空间 高阶双边滤波 |
Robust High-Order Bilateral Denoising Filter |
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| Fan Hanqi,Miao Lanfang,Zhang Xin,Peng Qunsheng. Robust High-Order Bilateral Denoising Filter[J]. Journal of Computer-Aided Design & Computer Graphics, 2009, 21(6) |
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| Authors: | Fan Hanqi Miao Lanfang Zhang Xin Peng Qunsheng |
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| Affiliation: | State Key Laboratory of CAD & CG;Zhejiang University;Hangzhou 310027;College of Mathematics Physics and Information Engineering;Zhejiang Normal University;Jinhua 321004 |
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| Abstract: | A robust high-order bilateral denoising algorithm is introduced in the paper. By using techniques from robust statistics,we obtain the approximations of the underlying surfaces. This leads to a conceptually good local patch with precise geometry properties,and as a result,the influence of noises is reduced. In addition,we also present a diffusion method to smooth the geometry properties,including principle curvatures and Frenet frame. The method ensures that the surfaces are smooth in the curvature space,an... |
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| Keywords: | noising process robust statistics curvature space high-order bilateral filter |
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