| 基于Shearlet变换的图像去噪算法 |
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| 引用本文： | 胡海智,孙辉,邓承志,陈习,柳枝华,占惠星. 基于Shearlet变换的图像去噪算法[J]. 计算机应用, 2010, 30(6): 1562-1564 |
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| 作者姓名： | 胡海智 孙辉 邓承志 陈习 柳枝华 占惠星 |
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| 作者单位： | 1. 南昌航空大学2. 南昌工程学院3. 南昌工程学院 计算机科学与技术系4. 南昌航空大学 信息工程学院 |
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| 基金项目： | 国家自然科学基金资助项目(60462003);;江西省教育厅科技项目(GJJ09366;GJJ10630) |
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| 摘 要： | 针对传统变换域去噪算法的不足,提出一种基于Shearlet变换的图像去噪算法。该算法首先在Shearlet变换理论基础上实现了一种分解和重构的方法,然后用Monte-Carlo方法对高频系数进行估计,最后通过阈值函数进行收缩去噪。实验结果表明,该算法在抑噪和保持边缘的同时,取得了较好的视觉效果和更高的PSNR值。
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| 关 键 词： | Shearlet变换 去噪 峰值信噪比 图像处理 多尺度几何分析 |
| 收稿时间： | 2009-11-30 |
| 修稿时间： | 2010-01-15 |
Image de-noising algorithm based on Shearlet transform |
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| HU Hai-zhi,SUN Hui,DENG Cheng-zhi,CHEN Xi,LIU Zhi-hua,ZHAN Hui-xing. Image de-noising algorithm based on Shearlet transform[J]. Journal of Computer Applications, 2010, 30(6): 1562-1564 |
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| Authors: | HU Hai-zhi SUN Hui DENG Cheng-zhi CHEN Xi LIU Zhi-hua ZHAN Hui-xing |
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| Affiliation: | 1.School of Information Engineering/a>;Nanchang Hangkong University/a>;Nanchang Jiangxi 330063/a>;China/a>;2.Department of Computer Science and Technology/a>;Nanchang Institute of Technology/a>;Nanchang Jiangxi 330099/a>;China |
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| Abstract: | According to the deficiency of de-noising algorithm based on the traditional transform domain,this paper proposed an image de-noising algorithm based on Shearlet transform.Firstly,a Shearlet decomposition and reconstruction implementation method was proposed in this paper.And then,the Monte-Carlo method was used to do estimation of the high-frequency coefficients.Finally the shrinkage de-noising would be done according to the threshold function.The experimental results demonstrate that the method can remove... |
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| Keywords: | shearlet transform de-noising psnr image processing multi-scale geometric analysis |
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