| 基于NSCT自适应阈值的红外图像去噪算法 |
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| 引用本文： | 李洪均,梅雪,林锦国.基于NSCT自适应阈值的红外图像去噪算法[J].计算机工程与设计,2008,29(12). |
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| 作者姓名： | 李洪均 梅雪 林锦国 |
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| 作者单位： | 南京工业大学,自动化学院,江苏,南京,210009 |
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| 摘 要： | 提出自适应阈值的NSCT去噪算法.在对红外图像噪声特点分析的基础上,通过对NSCT构造特性的分析,提出了将自适应阈值的NSCT运用于红外去噪,并验证了其可行性.分析了图像尺寸和分解尺度对去噪的影响,获得去噪算法的优化.应用于几种不同的红外图像,对红外图像去噪视觉效果和峰值信噪比两方面进行比较,该去噪方法取得了较好的效果,尤其是在边缘保持方面.
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| 关 键 词： | 平移不变性 轮廓波 多尺度几何分析 红外图像去噪 自适应闲值 |
Adaptive threshold infrared image denoising algorithm based on NSCT |
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| LI Hong-jun,MEI Xue,LIN Jin-guo.Adaptive threshold infrared image denoising algorithm based on NSCT[J].Computer Engineering and Design,2008,29(12). |
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| Authors: | LI Hong-jun MEI Xue LIN Jin-guo |
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| Affiliation: | LI Hong-jun,MEI Xue,LIN Jin-guo(College of Automation,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | Infrared image denoising algorithm is introduced.Based on adaptive threshold NSCT(nonsubsampled contourlet transform),the construction method on NSCT is analyzed and it is proved that method can be applied on infrared image denoising.To analysis the size of image and decomposition scales relative on denoising,as to get better image denoising result,this algorithm applied on some kinds of infrared images.Two aspects of the infrared image vision effect and the peak value signal to noise ratio are compared,the... |
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| Keywords: | shift-invariance contourlet transform multiscale geometric analysis infrared image denoising adaptive threshold |
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