查询词典 speckle

For a speckle fringe pattern, this task is difficult because the fringe pattern is strongly spoiled by speckle noise.

对于散斑条纹图来说，正则化的过程还需能够有效的抑制散斑噪声。

After improving the program, dots can be encoded automatically in the condition of removing dots, and can be encoded handily by human-computer dialogue if necessary. For speckle correlation method, speckle is arranged easily on model surface.

自动网格法在模型表面布置网格点容易，由于开挖或裂缝等原因去掉网格点，改进后的程序仍能自动编码，必要时可通过人机对话手工编码。

Three factors of restraining speckle noise in detection system, coherence ,phase difference and polarization of the incident ray,were analyzed in detail, and the relations between these factors and speckle contrast were also presented.

对采用激光照明的测量系统中散斑形成的三个重要因素，即入射光束的相干性、相位差和偏振特性进行了详细的理论分析，并给出了这些因素与散斑对比度的变化关系。

Firstly, the principle and the techniques of measuring the displacement on surface using quadratic-exposure speckle charts were introduced, and the meterage of thickness and nonuniformity of transparent solid using laser speckle techniques was discussed.

首先介绍了应用二次曝光散斑图测量物体表面的面内位移的原理和方法；在此基础上论述了激光散斑技术针对透明固体的厚度及其非均匀性的测量。

This method, based on the normalized cross-correlation function, is the modified Speckle Pattern Correlation method in the application of the digital image processing technique to the speckle pattern metrology.

该法实质上是借助数字图像处理技术，通过物体位移前后二个散斑场之间的相关性来进行位移测量方法的发展。

Oilcan is a kind of typical rigid target with big backscattering coefficient, which takes on point figure if the resolution of SAR image is not very high; these point targets to be recognized gather together, and form a target region with some distribution area; the center of the region appears as a beeline, and the speckle noise appears scattered, therefore, considering the different grey distributions between point target and speckle noise region and the space geometry distribution, these point targets can be recognized by this algorithm.

由于在高分辨率情况下，合成孔径雷达图像中油罐个体的散射分别体现为由若干高亮度点围成的椭圆，待识别油罐目标的模糊边缘呈不连续的椭圆状，因此从二值化后的SAR图像中识别出拟目标的不连续边缘，判断其是否满足目标边缘特性来识别出最终结果，采用该方法解决了这类高分辨率下椭圆状目标的识别问题。本文运用了基于Gauss核函数支持向量机的SAR图像典型目标识别方法。

Research of white-light stroboscopic speckle interferometry ;2. In this paper, the experiments for two kinds of glass fiber epoxy laminates is carried out by using speckle interferometry .

采用散斑干涉法，对两种铺层方式的环氧基玻璃纤维层合板的弹性模量、泊松比和应力－应变曲线进行了实验研究。

We propose a novel method to obtain speckle fringe patterns of ESPI from undeformed and deformed speckle patterns.

由我们方法获得的条纹图比减条纹有更高的对比度和更好的质量，新方法是简单的，不需要复杂的计算。

When laser diode illuminates the rough surface moving transversally across the light beam, the feedback light forms the random speckle due to the random pattern of the target surface, causing random fluctuations in the laser output, which is called as self-mixing speckle interference.

让半导体激光器的光学反馈来自垂直地照射的粗糙表面，把光强调制成为随机的散斑信号。

The results show that the speckle number is only determined by the relative size of the speckle cells and the area of the entrance pupil.

在激光散斑数和光电子数较大的情况下，以往的文献一般认为光电子数服从高斯分布。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。