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基于双树复小波的图像乘性噪声去除非线性扩散算法

发表时间:2011-04-30  浏览量:1544  下载量:712
全部作者: 尹寿垚,肖亮,张梵彪
作者单位: 南京理工大学计算机科学与技术学院
摘 要: 基于非线性扩散图像滤波机理,提出一个基于双树复小波全变差驱动的非线性扩散算法。利用双树复小波阈值收缩下的散度项和乘性噪声保真的数据驱动的变分偏微分方程(partial differential equation, PDE)模型,给出数值计算算法。实验表明:该算法优于经典的乘性噪声滤除AA算法。
关 键 词: 图像处理;图像去噪;双树复小波;非线性扩散
Title: A new nonlinear diffusion algorithm based on dual-tree complex wavelet for image multiplicative noise removal
Author: YIN Shouyao, XIAO Liang, ZHANG Fanbiao
Organization: School of Computer Science and Technology, Nanjing University of Science and Technology
Abstract: According to the nonlinear difussion mechanism, this paper proposed a new nonlinear difussion algorithm based on dual-tree complex wavelet and total variation. A partial differential equation (PDE) model is proposed using multiplicative noise data fidelity term and divergence term based on dual-tree complex wavelet shrinkage. The numerical scheme is also presented. Experimental results show that this algorithm has better performance comparing with the multiplicative denoising AA algorithm.
Key words: image processing; image denoising; dual-tree complex wavelet; nonlinear diffusion
发表期数: 2011年4月第8期
引用格式: 尹寿垚,肖亮,张梵彪. 基于双树复小波的图像乘性噪声去除非线性扩散算法[J]. 中国科技论文在线精品论文,2011,4(8):712-717.
 
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