The invention discloses a speech enhancement method based on non-local mean filtering. The problem of high generation rate of musical noise after speech enhancement in the prior art is mainly solved. The method is implemented by the following steps of (1) inputting speech with noise, and ...
非局部均值(Nonlocal-Mean) 转载自网站:http://www.cnblogs.com/luo-peng/p/4785922.html 非局部均值去噪(NL-means) 非局部均值(NL-means)是近年来提出的一项新型的去噪技术。该方法充分利用了图像中的冗余信息,在去噪的同时能最大程度地保持图像的细节特征。基本思想是:当前像素的估计值由图像中与它具有相似邻...
因为操作都是仅局限于Kernel内的。 而Non Local Mean算法是非局部的。但是我觉得在具体实现上,NLM也应该是local的,但是Non local ≠ global嘛,所以可以理解。 NLM的算法思想是通过利用图片中的所有信息,来对图像像素进行某种确定方式的相似度加权平均。 NLM通过在图像块中进行搜索,通过计算滑动窗口与指定窗口的欧氏距...
非局部均值滤波(Non Local Means)算法其出发点是——在同一幅图像中对具有相同性质的区域进行分类并加权平均得到的图片,应该降噪效果也会越好。意味着它使用的是图像中的所有像素(实际上为了节省计算量,是一个搜索窗口区间内的所有像素),这些像素根据某种相似度进行加权平均。与双线性滤波、中值滤波等利用图像局部信息...
bridges self-attention for machine translation to the more general class of non-local filtering ...
A new image denoising method combined a Pyramidal Dual-tree Complex Directional Filter Bank(PDTDFB)domain Gaussian Scale Mixture(GSM)model and a non-local mean filter was proposed.First,the locally coefficients PDTDFB(GSM)model for a noisy image was established,and the denoised coefficients were ...
Salt-and-pepper Noise Removal Based on Fuzzy Median Filtering Removal of salt-and-pepper noise using fuzzy median filter is proposed.By comparing the pixel values in the image,the fuzzy membership function of the cand... F Wang,YY Man - 《Fuzzy Systems & Mathematics》 被引量: 15发表: 2012...
非局部均值(Non Local Mean)【GLSL】,#version120uniformsampler2DiChannel0;constvec2iResolution=vec2(512.,512.);constvec2inv_res=vec...
nonNegativeMod计算出什么 nonlocal mean 非局部均值去噪(NL-means) 非局部均值(NL-means)是近年来提出的一项新型的去噪技术。该方法充分利用了图像中的冗余信息,在去噪的同时能最大程度地保持图像的细节特征。基本思想是:当前像素的估计值由图像中与它具有相似邻域结构的像素加权平均得到。
a wide variety of speckle noise filtering methods and techniques have been proposed. The present research work aims to exploit the performance of the non-local sparse principal component analysis (NLS-PCA) method for speckle noise reduction as applied to the interferometric fringe patterns obtained fr...