We use a sliding time window, which is used to decrease the traveltime differences between the calculated and observed data to increase the cross-correlation between them. Besides, we propose a zero-mean normalized cross-correlation misfit function to reduce the interference of the low-frequency ...
Zero-means Normalized Cross Correlation (ZNCC) ZNCC is used to calculate matching costs between a reference pixelIR(x,y)in the reference image and a series of target pixelsIT(x−d,y)in the target image.dis calleddisparity, and its range is[0,D), whereDis a constant called maximum dispa...
1、回顾归一化互相关 (1)归一化互相关的概念解释如下:归一化互相关(Normalized Cross-Correlation)是一种用于计算两个信号或图像之间相似性的方法。它可以用于匹配模板、图像对齐、目标跟踪等应用。 举个例子,例如模板图像:2 3 4 目标图像:1 2 3 4 5 6 7 5 6 7 8 8 9 10 9 10 11 12 13 14 15 16...
We have developed a normalized nonzero-lag crosscorrelataion-based elastic FWI algorithm to maximize the similarity of the calculated and observed data. We use the first-order elastic-wave equation to simulate the propagation of seismic waves in the earth. Our proposed objective function emphasizes...
The bit error rate (BER) and normalized cross-correlation (NCC) of the recovered watermark image were used to assess the robustness of the suggested scheme. The terms BER and NCC are defined as follows: $$\text{BER}=\frac{1}{P\times Q}{\sum }_{i=1}^{P}{\sum }_{j=1}^{Q}[...
the “best match” being decided in terms of a chosen metric such as mean squared error (MSE), mean absolute error (MAE), peak signal to noise ratio (PSNR), sum of squared errors (SSE), sum of absolute difference (SAD), cross-correlation (CC), normalized cross-correlation (NCC), etc...
patch_size: the patch size for the normalized cross-correlation, in default is5. style_coding: the projection and reconstruction method, eitherZCAorAdaIN. style_interp: interpolation option between the transferred features and the content features, eithernormalizedorbiased. ...
Moreover, the coefficient vectors of 𝛽β and 𝜃θ are also normalized by 𝛽||𝛽||2β||β||2 and 𝜃||𝜃||2θ||θ||2, respectively. The learning rates 𝛾1=0.01γ1=0.01 and 𝛾2=0.01γ2=0.01 are used for the gradient descent method. Moreover, the momentum term is ...
Normalized correlation (NC) is employed to evaluate the quality of the extracted results, and it is one of the most common evaluation methods [34]. The mathematical equation of NC is as follows: NC=∑𝑁𝑖=1W𝑖W′𝑖∑𝑁𝑖=1W2𝑖−−−−−−−−−√∑𝑁𝑖=1W...
The resulting normalized coherence levels are then directly related to the sensitivity to pulsed field gradient integrals. The coherence pathway diagram for the gradient-enhanced heteronuclear multiple quantum correlation (HMQC) experiment is illustrated in Figure 4. For X=13C, the initial heteronuclear ...