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相干斑抑制
相关语句
  speckle suppression
     Evaluation for coherent speckle suppression filters of SAR images
     SAR图像相干斑抑制滤波性能评价
短句来源
     Combined with characters in SAR image, this paper proposes speckle suppression algorithms for SAR image based on Curvelet transform, Contourlet transform and SOT structure in Contourlet domain separately.
     本文结合SAR图像的特点,分别提出了基于Curvelet变换、Contourlet变换和Contourlet域SOT结构的SAR图像相干斑抑制算法。
短句来源
     In the light of wavelet-domain soft-thresholding denoising algorithm, with hidden Markov models (HMMs) structure of images, a new speckle suppression method based on wavelet-domain statistical filtering is proposed.
     在小波变换软阂值去噪方法的基础上,利用隐马尔可夫模型理论,提出了一种新的基于小波域统计滤波的相干斑抑制方法,并用仿真图像和实测数据机载SAR图像对几种方法的性能进行了定量和定性比较。
短句来源
     Combined with the the Natural Science Fund of Jiangsu Province(N0.BK2001047) which name is“Research On SAR Image Evaluation”, this paper uses above-mentioned methods to SAR image processing, proposes new algorithms of speckle suppression and target detection for SAR image and researches on abilities of these algorithms.
     本文结合江苏省自然科学基金(N0.BK2001047)“合成孔径雷达(SAR)图像定量评估研究”,将上述两种变换应用于SAR图像处理,提出了新的SAR图像相干斑抑制和目标检测算法,并对算法的性能进行了研究。
短句来源
     Speckle Suppression of SAR Images Based on Adaptive Windowing
     基于自适应窗口的SAR图像相干斑抑制
短句来源
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  “相干斑抑制”译为未确定词的双语例句
     Speckle Denoising Algorithm of SAR Image Based on SOT Structure in Contourlet Domain
     基于Contourlet域SOT结构的SAR图像相干斑抑制算法
短句来源
     Speckle reduction in SAR images based on the SOT structure in the wavelet domain
     基于小波域中SOT结构的SAR相干斑抑制
短句来源
     Research and Implementation of Speckle Denoising Algorithm Based on Curvelet Transform in SAR Image
     基于Curvelet变换的SAR图像相干斑抑制算法研究与实现
短句来源
     The Coherent Speckle Suppressing Method of SAR Images Based on Stationary Wavelet Transform
     SAR图像平稳小波变换相干斑抑制方法
短句来源
     Study of Speckle Reduction Algorithms for SAR Images
     SAR图像相干斑抑制算法研究
短句来源
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  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 RESEARCH OF SPECKLE REDUCTION OF POLARIMETRIC SYNTHETIC APERTURE RADAR
     极化合成孔径雷达相干抑制研究
短句来源
     AWMAP Speckle Reduction Algorithm for SAR Image
     SAR相干AWMAP抑制算法
短句来源
     Modified speckle reducing anisotropic diffusion
     各向异性扩散相干抑制改进算法
短句来源
     Study of Speckle Reduction Algorithms for SAR Images
     SAR图像相干抑制算法研究
短句来源
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  speckle suppression
An adaptive speckle suppression and edge enhancement technique
      
An adaptive speckle suppression and edge enhancement method based on Nakagami distribution is presented.
      
An adaptative weighted median filter for speckle suppression in medical ultrasonic images.
      
Block diagram of the proposed multiscale homomorphic Bayesian-based algorithm for speckle suppression.
      
For this noise level, all the methods that we tested achieved a good speckle suppression performance.
      
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The coherent-imaging principle of Synthetic Aperture Radar causes speckle niose, which is the major problem of SAR images. According to the characteristics of SAN image details and speckle distribution, this peper puts forward a speckle-reduction algorithm based on region division. This algorithm can protect edge-characteristics of SAR image, along with a very good speckle reduction effort. Eperimental result shows that this algorithm is better than other existing speckle reduction methods.

合成孔径雷达(SAR)因为相干成像原理所固有的相干斑噪声是影响其图像质量的主要原因。文中根据SAR图像的纹理特征和相干斑噪声的统计特征,提出了一种基于区域分集的相干斑抑制算法。本算法能够完全保留SAR图像边缘特征,同时对相干斑具有较好的抑制能力。实验结果表明,本算法处理效果优于目前常用的相干斑滤波算法。

This paper studies on the speckle reduction in multi-look polarimetric SAR image. A novel method, named the multi-look polarimetric whitening filtering (MPWF) method, is presented, and is further extended to construct a fully polarimetric filter with multi-channel output. The paper also quantifies the amount of speckle reduction achievable by using the MPWF, and compares this method with the span, weighting and power equalization (PE) methods in theory. Experimental results with the NASA/JPL L-band 4-look polarimetric...

This paper studies on the speckle reduction in multi-look polarimetric SAR image. A novel method, named the multi-look polarimetric whitening filtering (MPWF) method, is presented, and is further extended to construct a fully polarimetric filter with multi-channel output. The paper also quantifies the amount of speckle reduction achievable by using the MPWF, and compares this method with the span, weighting and power equalization (PE) methods in theory. Experimental results with the NASA/JPL L-band 4-look polarimetric SAR data demonstrate the effectiveness and superiority of the MPWF, and show that the MPWF is of great advantage for enhancing SAR image classification.

本文研究多视极化合成孔径雷达(SAR)图象的相干斑抑制,提出多视极化白化滤波(MPWF)法,并进一步将它发展成具有多通道输出的全极化滤波器。本文还定量地分析了MPWF方法抑制相干斑的能力,并在理论上同全功率法、加权法和功率均衡法进行了比较。应用NASA/JPL机载L波段四视全极化SAR数据的试验结果验证了所提方法的有效性和优越性,也说明了MPWF处理能显著地提高SAR图象的分类精度。

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。

 
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