A statistical noise model and a mathematical model for real speckle pattern are presented, and then, in view of the models, a new adaptive suboptimal image filtering approach is proposed.
本文介绍了一种实际散斑模式的数学模型和噪声统计模型，并提出了一种针对这种模型的自适应次优滤波方法。
In this paper, a new nonlinear weighted average multidirectional morphological filtering algorithm is proposed to suppress speckle noise.
提出了一种新的用于抑制散斑噪声的非线性加权均值多方向形态滤波算法。
A new nonlinear weighted average multidirectional morphological filtering algorithm is proposed, which is used in suppressing speckle noise.
提出了一种新的用于散斑噪声抑制的非线性加权均值多方向形态滤波算法。
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.
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。
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