The reference noise must first be whitened. We calculate the mean-square estimation error and show that, for a finite learning duration of the cross-correlation function between the noisy signal and the whitened noise, this error is minimum for a variance of the whitened noise less than 1....
D-J Threshold-Based Estimation of White Noise Variance 基于D-J阈值的加性白噪声方差估计改进方法研究 ilib.com.cn 8. Robust Fusion Algorithm Based on Noise Variance Estimation 基于噪声方差估计的稳健融合算法 www.ilib.cn 9. New Method of Image De-noising through Wavelet Shrinkage Based on Estimate ...
1.After several discrete wavelet transforms, another expression of thedeviationof white noise on every scale is given by us.推导出了经过多次离散小波变换后,白噪声在不同尺度上方差的另外一种表达式,应用到小波域硬阈值滤波中,通过数字仿真发现,二进小波的计算量较大,滤波效果较好,离散小波的计算量较小,滤波...
Figure 7(b-c) present the Gaussian noise injection results with variance of 0.01 and 0.02, respectively. Sign in to download hi-res image Figure 7. Gaussian noise. 3.2.2 White noise Gaussian noise is defined by its PDF, but white noise is based on the noise power. From the view of ...
Variance Goal imposes a noise attenuation constraint that limits the impact on specified output signals of white noise applied at specified inputs. The noise attenuation is measured by the ratio of the noise variance to the output variance. ...
Notably, the proposed method only assumes the presence of additive white noise, irrespective of the noise distribution. This minimal assumption enhances the model's robustness against noise with complex or unknown distributions in real-world distorted images. Experimental results indicate that the ...
17.Image Noise Estimation Based on Block Neighborhood Relevance基于块内邻域相关度的图像噪声估计 18.Simplification of finite memorial online estimation for measurement noise量测噪声有限记忆在线估计简化算法 相关短句/例句 white noise statistics estimation白噪声统计估计 ...
Noun1.standard deviation- the square root of the variance statistics- a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters variance- the second moment around the mean; the expected value...
Additive Colored Gaussian Noise Additive Colour Mixing Additive Congruential Random Number Additive Dual Quaternion Error additive effect additive effect additive effect additive effect Additive fabrication additive factor Additive Full-Time Manning Additive function Additive Gaussian white noise additive gene actio...
Suppose that W is a Gaussian white noise of variance σ2 and that all blocks have the same size L. The noise energy in each block is then |σB|Bq2=Lσ2. Theorem 11.10 [129] computes an upper bound of the block thresholding risk, which is related to the risk rpr(f) of an ...