In the paper an improved approach based on Donohos method is proposed to estimate the variance of Gaussian noise in images. The proposed approach exploits the interscale correlation in wavelet domain to estimate the coefficients of image signals, and then get the purer noise coefficients by ...
The paper presents a fast and simple method for estimating the variance of additive zero mean Gaussian noise in an image. The method can also be used to give a local estimate of the noise variance in the situation in which the noise variance varies across the image. It requires only the ...
The image is assumed to be corrupted by Gaussian distributed noise. The algorithm estimates the noise variance in three steps. At first the noisy image is filtered by a horizontal and a vertical difference operator to suppress the influence of the (unknown) original image. In a second step a...
variance = 1/(Ts*(10^(SNRdb/10))); W = sqrt(variance).*randn(1,size(Xmodt,2)); %Gaussian white noise W Xmodt = Xmodt + W; %Add the noise I know that in this example variance equals to 1, but I need to find a general solution. So, is this code cor...
a在与对手的竞争中,他赢了 正在翻译,请等待...[translate] a我在许多学生组织中工作过 I organize in many students to work[translate] aMail sent 被送的邮件[translate] aZero-mean Gaussian white noise with an intensity-dependent variance 零意味高斯空白噪声以一个强度依赖变化[translate]...
aOh, sorry to bother you. 噢,抱歉打扰您。[translate] aa white Gaussian noise is added to the simulated stator current and robustness of the criterion is analyzed with respect to the noise variance. 白色高斯噪声增加到被模仿的定子潮流,并且标准的强壮分析关于噪声变化。[translate]...
Non-Gaussian Narrow-Band Interference Non-Gaussian Noise Non-Gaussian Random Process Non-Gender Specific non-gender-specific Non-General Fund non-genetic variance Non-Genital Skin Fibroblasts Non-geographic number Non-Geographic Number Portability Non-Geostationary Orbit Non-Geostationary Satellite Orbit Non...
Modified Adaptive Gaussian Filter for Removal of Salt and Pepper Noise Adaptive Gaussian filter (AGF) is a recently developed switching filter to remove salt and pepper noise. AGF first directly identifies pixels of gray levels 0 and 255 as noise pixels, and then only restored noise pixels using...
求翻译:Gaussian white noise with constant mean and variance是什么意思?待解决 悬赏分:1 - 离问题结束还有 Gaussian white noise with constant mean and variance问题补充:匿名 2013-05-23 12:21:38 null 匿名 2013-05-23 12:23:18 高斯白噪声具有恒定的意思和差异 匿名 2013-05-23 12:24:58 ...
I refer to this as our field’s Great Confusion—namely the confusion between necessary and sufficient conditions for the practical use of mean–variance analysis. For example, Gaussian return distributions1 or quadratic utility are sufficient conditions for the use of mean–variance analysis in ...