NSCT-based image denoising using 3-D directional windows

机译：基于NSCT的图像去噪使用3-D定向窗口

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Nonsubsampled Contourlet Transform (NSCT) is an effective representation tool in image denoising for its outstanding asymptotic rate and shift-invariance property. Proposed is a novel NSCT-based image denoising algorithm makes use of directional dependence. We describe the NSCT coefficients into 4D models, and select threshold after filtering with 3D directional windows. Experiment results show that the algorithm can highly shrinks the noise coefficients, enhances the edge coefficients and obtains higher peak signal-to-noise ratio.

机译：Nonsubs采样轮廓变换（NSCT）是图像去噪的有效表示工具，用于其出色的渐近率和移位不变性。提出的是一种基于NSCT的图像去噪算法，利用方向依赖性。我们将NSCT系数描述为4D模型，并在使用3D方向窗口过滤后选择阈值。实验结果表明，该算法可以高度缩小噪声系数，增强边缘系数并获得更高的峰值信噪比。

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《IEEE International Conference on Communication Technology》|2011年||共4页
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Wenhui Li; Mingqiang Yang;
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中图分类通信;
关键词
NSCT; denoising; directional dependence;

机译：NSCT;去噪;方向依赖;

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专利

1. Contourlet-based image denoising algorithm using directional windows [J] . Z.-F. Zhou, P.-L. Shui Electronics Letters . 2007,第2期

机译：基于方向窗的基于轮廓波的图像去噪算法
2. Image denoising algorithm via doubly local Wiener filtering with directional windows in wavelet domain [J] . Peng-Lang Shui IEEE signal processing letters . 2005,第10期

机译：小波域定向窗口双局部维纳滤波图像去噪算法
3. The complex data denoising in MR images based on the directional extension for the undecimated wavelet transform [J] . Hu Kai, Cheng Qiaocui, Li Bodong, Biomedical signal processing and control . 2018,第jana期

机译：基于未抽取小波变换方向扩展的MR图像复杂数据去噪
4. NSCT-based image denoising using 3-D directional windows [C] . Wenhui Li, Mingqiang Yang 2011 IEEE 13th International Conference on Communication Technology . 2011

机译：使用3-D定向窗口的基于NSCT的图像去噪
5. Signal Estimation by Superposition Modeling With Applications to Dynamic MRI Reconstruction, Hyperspectral Image Denoising, Light Detection in Viirs Data and Biosensor Data Denoising [D] . Yin, Lei. 2019

机译：通过应用于动态MRI重建的叠加建模，高光谱图像去噪，VIIRS数据和生物传感器数据去噪中的光检测信号估计
6. An optimized blockwise nonlocal means denoising filter for 3-D magnetic resonance images [O] . Pierrick Coupé, Pierre Yger, Sylvain Prima, -1

机译：针对3D磁共振图像的优化分块非局部均值去噪滤波器
7. Image Transmission over Multipath Fading Channel and Image Denoising using Directional Weighted Median Filter [O] . Veeramma Yatnalli, K L Sudha 2015

机译：基于多径衰落信道的图像传输及定向加权中值滤波图像去噪

NSCT-based image denoising using 3-D directional windows

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