基于偏微分方程的图像非线性扩散滤波，关键是确定合适的扩散机制与参量。
The key of image nonlinear diffusion filtering based on PDE (Partial Differential Equations) is to determine the appropriate diffusion mechanism and parameters.
在叠加成像方面，CRS叠加、非线性扩散滤波等可直接用来提高地震成像质量。
As for stack imaging, CRS stack and nonlinear diffusion filtering have been used to enhance the effects of seismic imaging in various seismic processing steps.
通过设计扩散系数为梯度模及曲率的函数，提出了一种保护角点的非线性扩散滤波模型。
A corner preserving nonlinear diffusion filter is proposed, whose diffusion coefficient is the function of the gradient and the curvature.
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