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相干斑噪声
相关语句
  speckle noise
     The Method and Study of Reducing Speckle Noise in SAR Image
     抑制SAR图像相干斑噪声方法研究
短句来源
     Speckle noise of Synthetic Aperture Radar (SAR) affects image quality and image interpretation seriously.
     合成孔径雷达(SAR)的相干斑噪声严重影响图像质量,降低图像的可判读性。
短句来源
     Methods of reducing speckle noise in SAR image are discussed in this paper.
     探讨了抑制合成孔径雷达 (SAR)图像相干斑噪声的方法。
短句来源
     Based on the statistical property of SAR image speckle noise and combining curvelet transform with HMT models,a method of SAR image de-noising based on curvelet domain hidden Markov tree(HMT) models is presented in this paper.
     从SAR图像相干斑噪声的统计特点出发,将Curvelet变换与隐马尔可夫树(HMT)模型相结合,提出了一种基于Curvelet域隐马尔可夫树(HMT)模型的图像去噪方法.
短句来源
     The paper improved Pauli Decomposition based on twice decompositions,and validated the improved approach which can effectively reduce the influence of the decomposition result by speckle noise and enhance the comprehending quality.
     本文基于二次分解的思想改进了Pauli分解方法,并对PolSAR数据进行了分解实验。 结果证明,改进的方法能够有效降低相干斑噪声对分解结果的影响,改善了分解结果的解译质量。
短句来源
更多       
  coherent speckle noise
     This paper studies Synthetic Aperture Radar(SAR) images with the multiresolution analysis of wavelet transform. This study indicates that the influences of the coherent speckle noise on different frequency components of the SAR images are different, and that the manners of singularity of the SAR images and the speckle noise are different, too.
     本文利用小波变换来对合成孔径雷达图象做多分辨率分析,说明了相干斑噪声对图象的不同频率成份的影响程度是不同的,同时也说明了相干斑噪声与图象在小波变换下具有截然不同的奇异性.
短句来源
     So, this paper presents a denoising method of wavelet analysis to reduce the coherent speckle noise.
     因此,本文提出了用小波分析来抑制相干斑噪声
短句来源
     To reduce coherent speckle noise in synthetic aperture radar (SAR) imagery, multilook processing (MP) in azimuth frequency is usually applied.
     为了抑制SAR图象中的相干斑噪声,改善图象信噪比,通常在横向频域上进行多视处理。
短句来源
     Coherent speckle noise of SAR images decreases the image quality seriously,and makes the image difficult to be understood.
     合成孔径雷达(SAR)的相干斑噪声严重影响图像质量、降低图像的可判读性。
短句来源
  coherent speckle
     Research on Coherent Speckle Reduction in High Resolution SAR Image Based on Wavelet Transform
     基于小波变换的高分辨率SAR图像相干斑噪声抑制研究
短句来源
     The Study on Coherent Speckle Reduction in SAR Image Using Wavelet
     基于小波变换的SAR图像相干斑噪声消除方法研究
短句来源
     Approach for Coherent Speckle Reduction in High Resolution SAR Images
     高分辨率SAR图像相干斑噪声抑制方法
短句来源
     This paper deals with coherent speckle reduction in high resolution SAR image based on wavelet transform.
     论述了基于小波变换对高分辨率合成孔径雷达(SAR)图像的相干斑噪声进行抑制。
短句来源
     Coherent speckle noise of SAR images decreases the image quality seriously,and makes the image difficult to be understood.
     合成孔径雷达(SAR)的相干斑噪声严重影响图像质量、降低图像的可判读性。
短句来源
更多       
  “相干斑噪声”译为未确定词的双语例句
     The Study of Speckle Distribution Features in SAR Image
     SAR图像中相干斑噪声分布特性研究
     A New Speckle Reduction Algorithm for High Resolution SAR Images
     一种新的高分辨率SAR图像相干斑噪声抑制算法
短句来源
     Speckle, appearing in synthetic aperture radar (SAR) images as granular noise, is generated by the coherent processing of radar signals.
     合成孔径雷达(Synthetic Aperture Radar-SAR)图像固有的相干斑噪声严重降低了图像的可解译度,影响了后续目标检测、分类和识别等应用。
短句来源
     A method of SAR speckle suppression based on Kirsch direction template
     基于Kirsch方向模板的SAR相干斑噪声抑制方法
短句来源
     Experiments are made on SAR images by using the method, and the results are compared with those of the Lee filter.
     将该方法用于SAR图像相干斑噪声抑制 ,并与Lee滤波器的去斑效果进行了比较。
短句来源
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  speckle noise
However, a relatively high level of speckle noise in the difference image is caused by the spatial filtering with a small aperture (laser beam) in the minimum of the superposition field in the Fourier hologram plane.
      
This paper studies Synthetic Aperture Radar (SAR) images contaminated by the coherent speckle noise with the multiresolution analysis of wavelet transform.
      
It shows that this denoising method of wavelet analysis offers a very attractive alternative to suppress the coherent speckle noise of the SAR image.
      
The results show that the technique effectively reduces the speckle noise while preserving and enhancing the tissue edge and resolvable details.
      
An approach to suppress speckle noise and enhance edge
      
更多          
  coherent speckle noise
This paper studies Synthetic Aperture Radar (SAR) images contaminated by the coherent speckle noise with the multiresolution analysis of wavelet transform.
      
It shows that this denoising method of wavelet analysis offers a very attractive alternative to suppress the coherent speckle noise of the SAR image.
      
  coherent speckle
Using tunable lasers for photochromic coherent speckle diagnostics of bulk scattering media and optical fibers
      
Because of the serious noise of coherent speckle exists in SAR images, some people believe that edge extraction by using gradient for SAR imagery gives poor results.
      
Suppressing the coherent speckle of SAR images with wavelet analysis
      
This paper studies Synthetic Aperture Radar (SAR) images contaminated by the coherent speckle noise with the multiresolution analysis of wavelet transform.
      
It shows that this denoising method of wavelet analysis offers a very attractive alternative to suppress the coherent speckle noise of the SAR image.
      


In the multistage imaging proc ssing for SAR digital imaging and the applications of SAR image, it is often required to extract the luminance edge features of the SAR imagery. It has been studied to extract the luminance edge features for the ordinary imagery-produced by visible or infrared imaging system The methods using gradient are effectivery for the extraction of the luminance edge features of the ordinary imagery and commonly used. Because the serious noise of coherent speckle exists in the SAR imagery,...

In the multistage imaging proc ssing for SAR digital imaging and the applications of SAR image, it is often required to extract the luminance edge features of the SAR imagery. It has been studied to extract the luminance edge features for the ordinary imagery-produced by visible or infrared imaging system The methods using gradient are effectivery for the extraction of the luminance edge features of the ordinary imagery and commonly used. Because the serious noise of coherent speckle exists in the SAR imagery, some people believe that edge extraction using gradient for SAR imagery gives poor results. However in this paper, a rather ideal method is derived for the extraction of luminance edge features for SAR imagery with the consideration of 'he characteristics of SAR imagery. This method uses the relative average gradient and combines detection with tracking.

在合成孔径雷达数字成像的多级成像和合成孔径雷达图像的许多应用中,往往需要提取合成孔径雷达图像的灰度边界特征。人们对于由可见光或红外成像系统获得的普通图像的灰度边界提取已经进行了很多研究。使用灰度梯度提取普通图像的灰度边界非常有效,得到了广泛的应用.但由于在合成孔径雷达图像中存在严重的相干斑噪声,有人认为使用灰度梯度提取合成孔径雷达图像的灰度边界得不到好的结果。在本文中,我们考虑到合成孔径雷达图像的特性,给出了一种比较理想的提取合成孔径雷达图像的灰度边界的方法。这种方法使用相对平均灰度梯度,并且把检测与跟踪结合起来。

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 Synthetic Aperture Radar(SAR) images with the multiresolution analysis of wavelet transform. This study indicates that the influences of the coherent speckle noise on different frequency components of the SAR images are different, and that the manners of singularity of the SAR images and the speckle noise are different, too. So, this paper presents a denoising method of wavelet analysis to reduce the coherent speckle noise. In the meanwhile, a lot of experiments approve that this method not...

This paper studies Synthetic Aperture Radar(SAR) images with the multiresolution analysis of wavelet transform. This study indicates that the influences of the coherent speckle noise on different frequency components of the SAR images are different, and that the manners of singularity of the SAR images and the speckle noise are different, too. So, this paper presents a denoising method of wavelet analysis to reduce the coherent speckle noise. In the meanwhile, a lot of experiments approve that this method not only suppresses the speckle noise effectively, but also preserves as many target characteristics of original images as possible. It shows that this denoising method of wavelet analysis offers a very attractive alternative to suppress the coherent speckle noise of the SAR images.

本文利用小波变换来对合成孔径雷达图象做多分辨率分析,说明了相干斑噪声对图象的不同频率成份的影响程度是不同的,同时也说明了相干斑噪声与图象在小波变换下具有截然不同的奇异性.因此,本文提出了用小波分析来抑制相干斑噪声。实验证明了:小波分析除了能够对相干斑具有很好的抑制效果外,还保留了尽可能多的原图象的目标特征。利用小波分析来抑制相干斑噪声是一个十分吸引人的新方法。

 
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