The critical part of this sight is a holographic optical elements combined with a lensless Fourier transform hologram and a holographic beam transformer.
瞄准具的核心部件是由一块无透镜傅里叶变换位相全息图和一块全息光束变换器组成的全息光学元件。
The OTF (Optical Transfer Function) of an optical system can be evaluated by the Fourier Transform of the first derivative of the optical image of an knife-edge (object).
对光学系统输出刀口像的一阶导数做傅里叶变换，可以得到该系统的光学传递函数（OTF）。
In this paper, some transform basis, measurement Chain and instrument series in optical measurement is discussed, same its application is considered.
本文讨论了光学测量中的若干变换基，测量链和由此产生的仪器群以及它们的实际应用。
A robot vision system based on optical wavelet transform is designed by means of photoelectric information techniques in accordance with slow processing speed of vision system.
针对视觉系统处理速度慢的问题，利用光电信息技术设计出基于光学小波变换的机器人视觉传感器。
Neither the coherent optical input image nor the Fourier transform hologram of the reference image is required by this system.
这个系统既不需要相干光输入图像，也不需要基准图像的付氏变换金息图。
Holographic optical elements (HOE) can transform optical wave field.
全息光学元件能够完成光波场的转换。
Some applications of the optical wavelet transform are summarized and the application in textured image segmentation is discussed in detail.
总结了光学子波变换的一些应用领域，重点论述了在纹理分割中的应用。
Information processing of optics is really carried out on the optical information process system, the most basic key part is Fourier transform lens.
光学信息处理实现是在光学信息处理系统上进行的，系统的最基本最关键的部件就是傅里叶变换透镜。
In order to enhance the speed of robotic vision system image processing, the optical wavelet transform is applied to vision system based on the method of photoelectric hybrid implementation.
为了提高机器人视觉系统的图像处理速度，利用光电混合实现的方法，将光学小波变换应用于视觉系统。
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。
Fourier transform lens is key operating element in optical information processing system.
在光学信息系统中，傅立叶变换透镜是关键的运算部件。
Firstly, CCD and image collecting board are used to transform the optical images of the excursion of subsidiary image into the datum patterns recognizable by computers.
首先用CCD和图像采集卡将副像偏移的光学图像转换为计算机能识别的数据模式，然后利用图像处理程序求出副像偏移的值。
The traditional optical encryption methods are classified into two kinds, one is based on the joint transform correlator, the second is based on the matched filter.
传统的光学加密方法分为两类，一种是基于联合变换相关器的加密方法，第二种是基于。
With this element, We constructed a compact and smart multi-channel texture segmentation system based on principle of optical wavelet transform.
结合光学子波变换原理，构建了一个紧凑小型的多通道纹理图象处理系统，给出了设计与实验结果。
It is suggested that logarithm transform of oscillograph and large dynamic range of detector should be applied to adjust the optical cavity for improving metrical precision.
在光路调节中采用具有对数变换功能的示波器和动态范围较大的探测器，可以提高测量精度。
The fractional Fourier transform contains the spatial information and the spatial-frequency information simultaneously. The fractional correlation can be used to optical pattern recognition too.
分数傅里叶变换同时包含了空间域和空间频率域信息，分数相关也可以用于光学图样识别。
A technique of using optical wavefront-division multiplexer to realize high efficiency joint transform correlation is proposed in this paper.
提出一种利用光学波分复用器实现实时高效联合变换相关的方案。
There are two types of optical computerized tomography (OCT) algorithms: transform method and finite series expanded method.
光学层析算法可分为两类：变换类算法与级数展开类算法。
On the assumption of wavefront prolongation, a new optical phase retrieval algorithm by conventional lateral shear interferometer with wavelet transform is introduced.
在常规横向剪切干涉仪的基础上，利用波前周期延拓的假设，基于小波变换的方法实现了波前重构。
A new optical image encryption method using anamorphic fractional Fourier transform and double random phase encoding is proposed.
提出一种利用变形分数傅里叶变换和双随机相位编码对图像加密的方法。
A new optical image encryption method using dissymmetrical fractional Fourier transform and double random phase encoding was presented.
提出了一种利用不对称分数傅里叶变换和双随机相位编码对图像加密的方法。
Analog—to—digital converter is non—electrical transform. A pair of optical fibres can transmit signal to digital instrument to a great distance away.
模数转换装置为非电量转换，光导纤维对把该信息远距离传送给数字显示仪表，它能用数字量连续显示液位的变化。
Then a single channel incoherent optical correlator with only an image and a structural element is developed to execute the hit miss transform in parallel by one step thresholding.
设计了只有一个图像和一个灰度结构核的单通道非相干光学相关器来并行一步取阈完成击中与否运算。
Opto-electronic joint transform correlator has real-time ability for processing optical images, so it can be used in scene matching system.
光电联合变换相关器具有实时处理光学图像能力，因此可用于景像匹配系统。
The results show that we can conveniently control the intensity distribution of the partially coherent flat-topped beam by use of the fractional Fourier transform optical system.
结果表明，使用分数傅立叶变换，我们可以方便地控制部分相干平顶光束的光强分布。
The watermark can be retrieved by using either optical or digital Fourier transform on halftone images containing the watermarked information.
水印的提取过程只需对含有水印信息的半色调图像进行光学或数字的傅里叶变换即可完成。
A new optical element called Glass Ring is introduced in this paper. It can transform laser beam into a laser beam plane.
介绍一种新型的光学元件，它可把一束激光变换成一个两维的激光平面。
The method of generating transform limited pulse using filter is analyzed, and the optimal bandwidth of the filter required to get transform limited pulse for given optical source is obtained.
研究了用滤波器产生变换限制脉冲的方法，导出了获得变换限制脉冲所需的滤波器优化带宽。
Experiment results of lD signal segmentation and 2-D image features extraction with optical wavelet transform are reported.
着重介绍了一维的和二维的光学子波变换实验系统和实验技术。
Spectral resolution of optical fiber Fourier transform spectrometer depends on maximum optical path difference (OPD).
光纤傅里叶变换光谱仪的光谱分辨率是由最大光程差决定的。
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