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.
提出了一种将正交滤波和非线性扩散相结合的取向估计方法。
This paper presents a method for orientation estimation which combines the quadrature filtering with nonlinear diffusion.
非线性扩散方程滤波是一种有效的图象增强算法，能在清除图象噪音的同时保存界面不发生漂移或模糊。
Nonlinear diffusion equation filtering is a powerful tool for enhancing image while preserving edges not drifting or blurred.
该文给出了一种非线性异性扩散滤波器的设计方法。
In this paper, a design method for nonlinear diffusion filter is proposed.
这些非线性图像滤波大多源于求解初始值为输入图像的非线性扩散方程。
These filters may boil down to solving nonlinear diffusion equations with initial values being input images.
但这种非线性扩散方程在进行图像去噪的过程中存在两个缺点：滤波过后依然存在孤立噪声点和边缘处的噪声难以去除。
There are two shortcomings when such filter is used for image denoising: single speckle is reserved after filtering and noise at edges cannot be eliminated successfully.
但这种非线性扩散方程在进行图像去噪的过程中存在两个缺点：滤波过后依然存在孤立噪声点和边缘处的噪声难以去除。
There are two shortcomings when such filter is used for image denoising: single speckle is reserved after filtering and noise at edges cannot be eliminated successfully.
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