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相干斑噪声模型
相关语句
  speckle noise model
     2) The author analyses the multiplicative speckle noise model in the spatial domain and the polarimetric domain, and imrove the polarimetric multiplicative speckle noise model to meet the practicality.
     (2) 分析了现有的空间域和极化域的乘性相干斑噪声模型,并对极化域的乘性相干斑噪声模型进行了一定改进以更符合实际情况;
短句来源
     4) On the base of improved polarimetric multiplicative speckle noise model, the author presents a new despeckle algorithm--multi-texture maximum likelihood estimator, which estimates simultaneously the texture parameters of multi-polarimetric channels by the method of maximum likelihood estimation and so get the despeckled SAR intensity images of multipolarimetric channels. The experiments indicated that this algorithm got the better effect of speckle reduction.
     (4) 作者在改进的极化乘性相干斑噪声模型的基础上提出了一种新的相干斑抑制算法——多纹理最大似然估计法,该方法同时对各个极化通道的纹理特征进行最大似然估计,从而得到抑制了相干斑的各个极化通道的强度图像,实验表明该算法取得了较好的相干斑噪声抑制效果。
短句来源
     Based on the method, the texture parameters of multi-polarimetric channels are estimated simultaneously by the method of maximum likelihood under the assumption of multi-texture multiplicative speckle noise model.
     该方法在多纹理乘性相干斑噪声模型的假设下,采用最大似然估计法来同时估计多个极化通道的纹理参数。
短句来源
  “相干斑噪声模型”译为未确定词的双语例句
     In chapter 2 we particularly describe the mechanism of speckle forming, discuss the noise model and the statistical characteristic of SAR image, introduce the main parameters for evaluating the quality of SAR image.
     第二章首先介绍了相干斑噪声的形成机理,研究了相干斑噪声模型,然后分析了SAR 图像的统计特性,并介绍了一些常用的 SAR 图像质量的评估指标。
短句来源
     This paper takes advantge of the anisotropic diffusion for additive noise reducing to reduce the speckle in SAR image. It analyses the distribution of speckle model of SAR image and its Log image, and the result shows that using the anisotropic diffusion for additive noise reducing to reduce the speckle is feasible.
     将光学图像加性噪声抑制的非线性扩散方程引入到SAR图像相干斑抑制中,通过分析SAR图像的相干斑噪声模型在功率图像域以及功率图像的对数域上的表现特性,说明了基于加性噪声模型的非线性扩散方程在SAR图像噪声抑制中的应用可能性,并由此设计了基于非线性扩散方程的SAR图像噪声抑制算法。
短句来源
  相似匹配句对
     Study of SAR Speckle Noise Suppressing
     SAR相干噪声的抑制
短句来源
     The noise model for photomultiplier
     光电倍增管的噪声模型
短句来源
     Speckle noise is an intrinsic property of synthetic aperture radar (SAR) imagery.
     相干噪声是SAR图像的固有特点。
短句来源
     Speckle noise is an intrinsic property of Synthetic Aperture Radar (SAR) imagery.
     相干噪声是 SAR图像的固有特点。
短句来源
     A Study of Speckle Reduction Algorithms of Synthetic Aperture Radar Images
     SAR图像相干噪声抑制算法的研究
短句来源
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In this paper, a new method of speckle reduction in polarimetric SAR image is proposed. Based on the method, the texture parameters of multi-polarimetric channels are estimated simultaneously by the method of maximum likelihood under the assumption of multi-texture multiplicative speckle noise model. This method preserves the polarimetric properties, reduces the couple between polarimetric channels, and gets the better effect of speckle reduction. It is also compared with the PWF (polarimetric whitening filter)....

In this paper, a new method of speckle reduction in polarimetric SAR image is proposed. Based on the method, the texture parameters of multi-polarimetric channels are estimated simultaneously by the method of maximum likelihood under the assumption of multi-texture multiplicative speckle noise model. This method preserves the polarimetric properties, reduces the couple between polarimetric channels, and gets the better effect of speckle reduction. It is also compared with the PWF (polarimetric whitening filter).

提出了一种新的极化SAR图像相干斑抑制的方法。该方法在多纹理乘性相干斑噪声模型的假设下,采用最大似然估计法来同时估计多个极化通道的纹理参数。该方法保存了极化信息,消除了极化通道间的耦合,取得较好的相干斑抑制效果;并与极化白化滤波法(PWF)作了比较。

This paper takes advantge of the anisotropic diffusion for additive noise reducing to reduce the speckle in SAR image. It analyses the distribution of speckle model of SAR image and its Log image, and the result shows that using the anisotropic diffusion for additive noise reducing to reduce the speckle is feasible. Then it gives an algorithm for speckle reducing based on anisotropic diffusion. Numerical results show that the new model has better denoising result than some known methods, and can heep target...

This paper takes advantge of the anisotropic diffusion for additive noise reducing to reduce the speckle in SAR image. It analyses the distribution of speckle model of SAR image and its Log image, and the result shows that using the anisotropic diffusion for additive noise reducing to reduce the speckle is feasible. Then it gives an algorithm for speckle reducing based on anisotropic diffusion. Numerical results show that the new model has better denoising result than some known methods, and can heep target feature better.

将光学图像加性噪声抑制的非线性扩散方程引入到SAR图像相干斑抑制中,通过分析SAR图像的相干斑噪声模型在功率图像域以及功率图像的对数域上的表现特性,说明了基于加性噪声模型的非线性扩散方程在SAR图像噪声抑制中的应用可能性,并由此设计了基于非线性扩散方程的SAR图像噪声抑制算法。计算结果表明,与现有的SAR噪声抑制方法相比,非线性扩散方程方法具有更强的对背景区域的噪声抑制能力,且能更好地保持目标特征。

 
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