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- restraining speckle noise 散斑控制
- The original centroid tracking algorithm is no longer suitable because of the speckle noise in ladar image. 然而常规形心跟踪算法因激光雷达图像受到散斑噪声影响而变得不适合。
- The testing image of shearography includes much speckle noise, so de-noising is a very important task. 散斑图像往往含有较大的噪声,如何对散斑图像进行降噪处理是一个非常重要的问题。
- In this paper, a nonlinear multiwavelet transform adaptive threshold value method is proposed to suppress speckle noise. 摘要文章提出了一种新的用于斑点噪声抑制的非线性多小波变换自适应阈值算法。
- The edge judged from modulus maxima not only suppresses the speckle noise but also improves the veracity of edge position. 由于小波变换具有多分辨分析和时频局部化特性，使其在图像处理中有突出的表现。
- An algorithm based on the anisotropic diffusion equation is presented to suppress the speckle noise of B-Scan ultrasound image. 提出了一种基于各向异性扩散方程的B超图像斑点噪声抑制的算法。
- At first utilized the SOT to normalize the multiwavelet coefficients in high frequency band and removed the signal-dependence of the speckle noise. 首先利用SOT对高频子带的多小波系数进行软阈值去噪，滤除相干斑噪声;
- This paper presents an approach for the speckle noise reduction in three-dimensional surface laser light sensing: surface light scanning. 摘要提出一种激光片光三维传感中降低散斑影响的方法：片光面内移动扫描法。
- Especially in the edge extraction, the speckle noise makes none of the conventional extraction algorithms get good result. 特别是对于边缘提取，斑点噪声使得传统的提取算法几乎都无法取得理想的效果。
- Because there is speckle noise in SAR image and the background clutter of water is usually very complex, weak target detection is a big challenge for conventional methods. SAR图像存在相干噪声以及水面背景杂波的复杂性,传统方法对于弱目标检测存在困难。
- Owing to the advantages of shift-invariance and excellent spatial orientations,the dual-tree complex wavelet transform is used to reduce SAR speckle noise. 然后对小波变换斑点噪声滤波方法进行分析,提出了基于二元树复小波变换的SAR图像滤波方法。
- The multiplicative nature of the speckle noise in SAR images is a big problem in SAR image segmentation.A novel method for automatic segmentation of SAR images is proposed. 由于存在相干斑噪声的影响，给SAR图像分割造成很大的困难，该文提出了一种SAR图像的自动分割方法。
- The experimental results show that excellent performance can be achieved: the image speckle noise is reduced effectively and the ENL is high, and the image quality is improved obviously. 经本文方法处理后的图像,其相干斑噪声得到了有效的抑制,具有较高的等效视数,明显地改善了图像的质量。
- A novel approach of speckle noise reduction is put forward according to the distributions of signal and noise under different scales of Synthetic Aperture Radar (SAR) images based on Wavelet Packet Transform (WPT). 根据信号和噪声的小波系数在不同分解尺度上的分布;提出应用小波包变换(WPT)消除合成孔径雷达(SAR)图像斑点噪声的新方法.
- Experimental result shows the algorithm has nearly the same edge preserving performance as nonlinear multiwavelet transform, and nearly the same speckle noise suppression performance as filtering. 此算法对原图像进行多小波变换，然后在不同尺度，不同方向进行自适应阈值处理，仿真结果表明：本算法能够有效地抑制了斑点噪声，又保留有用信号及边缘信息。
- Synthetic aperture radar (SAR) is affected by speckle noise seriously.It is difficult to use the classic means for optical images when we perform SAR images registration and change detection. 摘要合成孔径雷达(SAR)图像由于受相干斑噪声的影响，在对其进行配准及变化检测时，经典的适于光学图像的方法效果不佳。
- As we talked, I felt a joy I could not restrain. 我们交谈时，我感到一种无法抑制的高兴情绪。
- He couldn't restrain his curiosity. 他抑制不住自己的好奇心。
- If I don't restrain my dog, it chases the cat. 我如果不管住我的狗，它就要追猫了。
- I couldn't restrain my laughter. 我禁不住笑了出来。
