The focal spot, size depend on the pinhole diaphragm diameter of spatial filter.
光斑尺寸和空间滤波系统的针孔光阑直径有关。
Spatial filter is an important preprocessing method of digital image processing.
空域滤波是数字图象处理中重要的预处理方法之一。
Finally, the single-frame detection algorithm based on spatial filter is performed.
再进行基于空域滤波的单帧检测算法。
By comparing with other approaches, we selected the spatial filter method to restrain hot-image effect.
在各种抑制“热像”效应的方法中选取采用滤波器来抑制“热像”效应。
The theoretical result is illustrated with numerical examples of Gaussian beams passing through a spatial filter.
以高斯光束通过空间滤波器所作的数值计算为例对理论结果进行了说明。
Firstly, the author introduces the conception of spatial filter, and illustrates the principles of array antenna.
首先介绍了空域滤波的概念，同时分析阵列天线的技术基础。
The results indicate that the Ag-air structure can be used as a multi-channel frequency filter and spatial filter.
结果表明，可以将该结构设计成多通道频率滤波器和多通道角度滤波器。
A novel variable coefficient spatial filter is designed, which could effectively enhance the background difference image.
本文还设计了一种新的变系数空域滤波器，该滤波器能有效地对背景差图像进行显著增强。
According to spatial filter character, a common slit can become a practical optical filter by adding two couples of shades.
根据空间滤波特点，在普通单缝上增加两对挡光片，使之成为一种实用的光学滤波器。
Then we use morphological image processing and spatial filter processing to improve the quality of binary segmentation image.
对图像分割得到的二值图像进行图像形态学处理和空域滤波处理，提高了二值图像的质量。
One way to improve beam quality is that the frequency having high nonlinear gain should be filtered by spatial filter pinhole.
改善的方法之一就是利用空间滤波器小孔将非线性增长很快的部分滤掉。
Therefore, a spatial filter is applied to generate, from one or more of the output pixels, a pixel at the required pixel position.
因此，应用空间滤波器来从所述输出像素中的一个或更多输出像素生成该所需像素位置处的像素。
Compared with the matched spatial filter OPR system, the addressing results are direct, and this scheme is feasible and promising.
与匹配滤波器光学模式识别系统相比，识别结果直接，系统简单可行。
The localization of the speech source is the primary task of the array signal processing, and the basis of spatial filter designing.
声源定位是阵列信号处理的主要任务之一，是实现空间滤波的基础。
Computer simulations show that this kind of filter is much more sensitive as compared to a matched spatial filter or a phase-only one.
计算机模拟的结果表明，这种滤波法对输入信号的旋转变化和尺度缩放变化，相对于传统的匹配滤波法及仅相位滤波法要敏感得多。
Owing to the PTD effect in the lenses of spatial filter, large temporal front distortion of femtosecond pulses occurs in the spatial filter.
由于透镜传输时间延迟效应（PTD），飞秒激光脉冲经过空间滤波器产生脉冲波前变形。
Part algorithms of infrared small target detection in the way of spatial filter and time filter are introduced in this paper, based on present and recent technology.
现基于小目标检测的现状和最新进展，从空间滤波和时间滤波的角度对现有的小目标检测技术进行了简单的概述，并分析了今后的研究方向。
The methods of image processing included gray transformation, threshold segmentation, logic calculation, spatial filter and so on. They were all analyzed in great detail.
论文对所用到的图像预处理的方法都进行了详细的分析，并给出了它们的算法框图或部分源代码，也对比了各种方法处理前后的效果。
An image data expansion part (04c) expands the processed image data processed by the spatial filter processing part (04b) at an expansion rate inverse of the reduction rate.
图像数据扩大部分(04c)以所述缩小率倒数的扩大率，将所述空间滤波处理部分(04b)所处理的经处理的图像数据进行扩大。
This paper also introduces test results of spatial filter output and its action in laser focus system, by using a measuring apparatus for radial intensity distribution of laser beam.
文中还介绍了利用激光束径向强度分布测量装置对空间滤波器的输出及其应用于激光聚焦系统中的作用的测试结果。
The spatial filter processing part (04b) performs a spatial filter process on the reduced image data reduced by the image data reduction part (04a) to generate a processed image data.
空间滤波处理部分(04b)对所述图像数据缩小部分(04a)所缩小的缩小后的图像数据执行空间滤波处理，以便生成经处理的图像数据。
Based on the method of matrix decomposition, and the Collins diffraction integral formulae, the propagation characteristics of a Gaussian beams passing through misaligned spatial filter are studied.
采用矩阵分解的方法，从柯林斯衍射积分公式出发，对高斯光束通过失调空间滤波器的传输特性进行了分析，得到了相应的解析式。
Namely, I am going to demonstrate how to sort, boost, and filter documents based on spatial information in the index.
我将演示如何根据索引中的空间信息对文档进行排序、增强和过滤。
The spatial contrib offers tools for creating Cartesian tiers and Geohash codes, as well as tools for creating Lucene query and filter objects.
空间贡献软件为创建笛卡儿层和Geohash 代码提供工具，并且为创建Lucene查询和过滤器对象提供工具。
In this paper, an improved spatial mask filter algorithm is proposed and applied in partial discharge pulse extraction.
提出了改进的空间屏蔽滤波算法，并将其应用于局部放电脉冲信号的提取。
A new approach named swell noise attenuation, which is based on spatial median filter arithmetic, can be adopted to suppress such a noise with some limitations.
基于空间中值滤波算法的巨浪噪声衰减技术对于此类噪声的衰减效果良好，但其应用存在一些限制条件。
In this paper, two methods of realizing optical pattern recognition, spatial matched filter correlation and joint transform correlation (JTC), were discussed first with the emphasis on the JTC.
本文首先论述了实现光学模式识别的两种方案，空间匹配滤波相关识别和联合变换相关识别的原理和技术。
Incorporating color distribution and spatial layout, this paper proposes a sequential Monte Carlo filter tracking face algorithm using color and spatial information in HSV color space.
结合图像的色彩分布和空间布局，提出了一种基于HSV色彩和空间信息的序列蒙特卡罗滤波人脸跟踪算法。
According to the statistic characteristics of IR background clutter, an improved spatial matched filter (SMF) is presented.
针对红外背景杂波的统计特性，提出了一种改进型的空间匹配滤波算法。
According to the statistic characteristics of IR background clutter, an improved spatial matched filter (SMF) is presented.
针对红外背景杂波的统计特性，提出了一种改进型的空间匹配滤波算法。
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