全息图
- hologram;holograph;panorama
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位相恢复法重现软X射线同轴全息图
Phase Retrieval Reconstruction for Soft X Ray In Line Hologram
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利用液晶显示屏(LCD)制作真彩色彩虹全息图
Make real-color rainbow hologram using LCD liquid crystal screen
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为了使全息图易于记录和计算,研究出一种全息析纹图。
In order to facilitate the registration and evaluation of holograms , the holodiagram was developed .
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基于Matlab的计算全息图的制作与数字再现的研究
Realization and digital reconstruction of computer-generated hologram based on Matlab
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可见光再现X射线无透镜傅里叶变换全息图的可行性研究
Study on the Feasibility of Reconstructing X-ray Lensless Fourier-Transform Hologram with Visible Light
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利用MATLAB编写了相应的程序,对记录的数字全息图进行分析处理。
Digital holography is analyzed by MATLAB program .
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用CCD演示全息图再现
Using CCD to demonstrate hologram reconstruction
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提出基于MATLAB实现计算全息图制作的两种方法,并作了分析比较。
Two methods of binary computer generated hologram production based on MATLAB were proposed and were analysed and compared .
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Fe∶LiNbO3全息图热定影及H~+浓度的影响
Study on Thermal Fixing and the Influence of H ~ + Concentration in Fe ∶ LiNbO_3 Hologram
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本文介绍了一种用液晶显示屏(LCD)制作单波长真彩色彩虹全息图技术。
A kind of making real-color rainbow hologram with single-wavelength and LCD liquid crystal screenisis presented in this paper .
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基于Hilbert-Huang变换的数字全息图中的零级项抑制
Suppression of Zero-order Term in Digital Holography Based on Hilbert-Huang Transform
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软X射线激光全息术采用短波长X射线激光光源,从而可获得空间分辨率很高的三维全息图,但目前它还存在许多问题。
As short wavelength light source such as soft X-ray laser is employed in holography , it 's possible to generate 3D holograms with high spatial resolution .
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透镜偏振像差分析无透镜再现Fraunhofer全息图
Analysis on Polarizing Aberration of lens Lensless Reappearing Fraunhofer Hologram
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试验中,以调Q红宝石激光器为光源,拍摄了摩擦焊接头的双曝光全息图。
In experiment , a Q switched ruby laser is used as light source , and a double exposure hologram of friction welding joint is obtained .
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分析了计算全息图编码原理,介绍了用MATLAB编程计算全息编码的主要步骤。
Firstly , the main progress of programming a encoding computer generated hologram ( CGH ) using MATLAB was introduced based on the analysis of the principle of CGH .
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重铬酸盐明胶(DCG)全息图退化的机理分析及抗潮方法之一
Theory analysis of DCG holograms degeneration and one of anti humidity methods
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利用Fraunhofer全息图的再现实像测量孔的椭圆度
Using the Reconstructed Real Image of the Hologram to Measure the Deep Hole Ellipticity
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计算全息图再现像的光强补偿应用Matlab语言和液晶空间光调制器(LCD)实现了计算机全息图的快速制作,并对绘制出的傅里叶型计算机全息图进行了计算机模拟再现。
Compensation of Light Intensity in Recovery Image of Computer-Generated Hologram Matlab and LCD are used to achieve the fast manufacturing and simulated reconstruction of the computer-generated hologram ( CGH ) .
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在一台激光器和一个防震台的条件下,提出一种记录主全息图H1和彩虹全息图H2共用光路的实用设计布置方法。
We designed a useful arrangement of optical elements recording master hologram H1 and rainbow hologram H2 using one laser and one holographic-table .
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记录在重铬酸盐明胶上的Lippmann全息图颜色控制的一种新途径
A New Way to Control the Color of Lippmann Holograms Recorded in Dichromated Gelatin
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对交流表面电场中BSO晶体全息图的衍射率进行了理论分析和实验研究。
The diffraction efficiency of hologram in photorefractive BSO crystal has been analyzed in theory and researched through experiments in alternating electric field .
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根据罗曼Ⅲ型编码方法,提出了一种新的基于MATLAB的傅里叶计算全息术,用4f系统实现了计算全息图的光学再现,获得了理想的再现像。
A new Fourier transform computer-generated holography based on MATLAB was proposed using Lohmann ⅲ coding method . The CGH was reconstructed optically by a 4f system and perfect reconstructed image was gained .
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本文从Fourier频谱分析的观点,导出了平面点全息图的文字存储密度公式,并进行了四次重迭曝光的点存储实验,给出了四页文字的再现图像;
According to the Fourier spect (?) um analysis the character storing density of a point plane hologram have been derived , And the point storing experiments of four superposed holograms was made , the reconstructing images of characters of four pages are presented .
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这种方法在解决了DCG对氩离子激光器的不同光谱输出的感光度相匹配的基础上,实现了用一台激光器一次曝光制作DCG彩色反射全息图。
Basing on matching of sensitivity of DCG plate with multi spectrum output of an Ar + laser , one exposure achieves Lippmann color DCG hologram using one laser .
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这些死去的全息图的记录,是一套Mila所收集到的早期信息,这向道显示了,在此造物领域中已有多少造物随时间而跌入死亡。
The records of the deceased holograms was an early set of information Mila gathered and this shows the Tao how so many creations have fallen into disanimation over time in this region of domain .
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把绘制的全息图显示在电脑屏幕上,直接用照相机缩拍到4mm×4mm尺寸得到一张计算全息图胶片。
The hologram drawn by this method is shown on the computer screen , then microfilmed to 4 mm × 4 mm by camera directly , and a computer-generated hologram film are gained .
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提出和介绍了运用Photoshop软件一些特殊的图像处理功能设计制作动感像素全息图的方法,并结合多种防伪技术,使产生的图案具有不可仿制的图形畸变特点,并列举了设计实例。
It also provides and discusses several methods for designing Dot-Matrix hologram by using Photoshop 's special effective function tools and combined multiple anti-counterfeit techniques which produce pattern 's distortion to enhanced anti-counterfeit feature , Samples designed are provided .
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通过使用Ronchi光栅和滤波片,把一张彩色透明片的红、绿、蓝信息编码记录在一张黑白胶片上并用单色激光制作彩色全息图。
This paper discusses the method of coding the three_basic_colour image of the colour transparent film with a Ronchi grating and optical filter , recording it on a white_black film , and making a colour hologram with monochromatic laser .
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基于分数傅里叶变换全息图(FRTH)的记录和再现的特殊性,提出一种记录多重全息图的新方法,可发展一种多重FRTH防伪术。
Based on the characteristics of the FRTH in recording and reconstruction , a multiple fractional Fourier transform hologram ( M FRTH ) and its application in anti counterfeiting were proposed .
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首先,利用三原色激光(632.8nm,514.5nm,488nm),记录彩色物体的菲涅耳全息图,以此得到彩色物体的三原色分色像;
Firstly , the trichromatic images of color object are separated using three Fresnel holograms with trichromatic laser wavelengths ( 632.8 nm , 514.5 nm and 488 nm ) .