查询词典 speckle

Because of the speckle noise, traditional methods do not work well for some cases.

但是由于SAR图像的斑点噪声使得这些算子的应用效果并不理想。

Experimental results demonstrate that the proposed method can effectively suppress speckle noise, while preserving the edge and texture information.

实验结果表明，该方法可以有效地抑制相干斑噪声，同时很好的保持边缘纹理信息。

The presence of speckle is a major cause of degradation in SAR images.

摘要相干斑噪声是引起SAR图像降质的主要原因之一。

A new experimental method for measuring resonant frequencies of objects is proposed by use of rotating shearing stroboscopic speckle interferome-try.

利用散斑干涉技术可对物体的动态过程和振动进行测量，由于测量的精度、灵敏度都较高，因而获得了较广泛的应用。

The influences of optical feedback and external cavity length on the laser output are studied, and the relation between fluctuations of speckle signal and the transverse velocity of rough surface is discussed.

分析了随机变化的反馈强度与外腔长度对激光光谱特性的影响。

Currently, the effectiveness based on the methods of the IVUS image edge detection is not ideal because of the severe speckle noise and some unadvisable priori hypotheses.

目前，所提出的IVUS图像边缘提取方法由于严重的斑点噪声影响以及加入了一些不适当的先验假设，边缘提取的效果并不理想。

It is found that the digital speckle images have fractal characteristics, and there is correlation between the characteristics of undeformed and deformed states.

本文研究发现数字散斑图具有分形特征，变形前后的数字散斑图像之间的分形特征也具有相关性。

In order to design a high performance laser Doppler velocimeter, the relationship between the signal intensity of laser Doppler and the diameter of spot was analyzed using the speckle theory, and the calculation formulas of the Doppler current was given based on functional theory. The polarization characteristic of scattered light and its intensity distribution were investigated.

为了设计高性能的激光多普勒测速仪，运用散斑理论详细分析了激光多普勒信号的强度与散射光斑大小的关系，结合泛函理论给出了计算多普勒电流的散斑表达式，并通过实验的方法研究了回波信号的偏振特性及其强度分布。

The symptom is whiten speckle, which has a serious effect on their edible value and commercial value.

主要症状是果梗和果粒表面出现漂白斑，严重影响葡萄的商品价值和食用价值。

In feature-level case, fully polarization information from SAR is used to combine with spectral characteristic from SPOT images, mainly to enhance land cover classification as well. Speckle noise was removed by Lee filter, followed by the maximum likelihood classifier based on different distribution was used for SAR and SPOT images (Based on Wishart distribution and multivariate Gaussian distribution respectively), to extract the conditional probability of each pixel for each class.

首先使用李式滤波器滤除全偏极雷达资料杂讯，接下来同样是使用採用最大似然法来分类融合影像，(不同的在於全偏极雷达影像使用Wishart机率分布，在光学影像採用multivariateGaussian机率分布)將每个类别中每个像元属於某个类别的机率值计算出来，再利用Dempster-Shafer evidence theory来结合这些类别的机率值。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。