建立数字全息记录与再现的模型,探讨了数字波前记录的手段和菲涅尔数字再现算法。
Construct a mathematical model of digital holography for its recording and reconstruction. The procedure of digital recording and numerical reconstruction are discussed in detail.
介绍了单幅全息图数字再现技术,分析了再现算法的特点,提出了准确确定记录距离的算法。
The characteristics of the reconstruction algorithms were analyzed, and the algorithm used to determine the exact recording distance was presented.
以数字方式再现已故名人的一个潜在隐患就是有可能破坏他们的遗产。
A hidden hazard of digitally recreating a deceased celebrity is the risk of damaging their legacy.
因为仅仅有数字签名并无法保证发送方就是他们自己所声称的人,消息的传输很容易遭受恶意第三方诸如再现攻击等技术的袭击。
Because a signature alone does not guarantee that the sender is who they say they are, the message transmission is vulnerable to techniques such as replay attacks by some malicious third party.
合理的数字半色调图像质量评价指标是图像再现技术评价的关键。
The logical digital halftone image quality evaluation index is the key of image reproduction technical.
利用符号、数字和语言再现和解释高于中级代数的数学知识。
Represent and explain mathematical information beyond the level of intermediate algebra symbolically, numerically and verbally.
对数字打样和模拟打样再现色分别进行了色度学研究,建立了以色彩匹配为目的的数学模型。
It makes colorimetrical researches on the color reproduction of digital proofing and that of simulative proofing, and sets up the mathematical model of color matching.
数字时代让思想和出版物之间的联系变得飘渺、空洞,但达里女士倒是借助了网络才实现了她再现当年的计划。
The digital age provides almost entirely disembodied connections, and Ms Durrie is using the Internet to push back a little.
用电话线传送数字讯号并再现文件的装置。
Device for the transmission and reproduction of documents by digitized signals sent over telephone lines.
结果表明:直接对无透镜傅里叶数字全息图进行傅里叶逆变换可同时得到与物体完全相同的再现像及其共轭像;
The experimental result shows: In the digital Fourier holography, the reconstructed image and the conjugate image can be obtained by use of Fourier inverse transform directly.
通过该模型对地图数字打样再现色进行分析和修正,可以实现数字打样色彩与模拟打样色彩之间的良好匹配。
The satisfactory color match between digital proofing and simulative proofing can be achieved by using this model to analyze and modify the color reproduction of map digital proofing.
数字处理系统还采用全数字信号处理技术,再现了来自标准清晰度和高清信号的优化,高分辨率的图像。
The digital processing system also incorporates full digital signal processing technology, to reproduce optimal, high resolution images from standard definition and HD signals.
在试验方法上采用数字迭代反馈技术,精确再现了地震波。
The digital compensation feedback method is used for reproducing earthquake waves, as well.
这是由于电子记录器件CCD的记录面积小,所记录数字全息图的分辨率低,这大大影响了再现像的质量。
This is because of the small recording area of the electronic record device (CCD), so the recorded digital hologram resolution is very low and the reconstruction image quality is affected greatly.
本文提出一种提高卷积法再现数字全息图的显示分辨率的新方法。
In this paper, a new method is proposed to solve the problem by investigating convolution reconstruction of digital holograms.
利用数字图像技术,再现了沉桩挤土效应。
The hole expansion effect of soil is studied by means of digital image technique.
针对合成孔径数字无透镜傅里叶变换全息图,在理论分析的基础上,提出了相应的分幅再现算法。
For synthetic aperture digital lensless Fourier transform hologram, a screen-division reconstruction method is proposed based on theoretical analysis.
提出了一种基于色彩合成以及菲涅尔衍射原理,用计算机产生全息图并用数字方法再现彩色全息图的方法。
A method, which is based on the theories of color synthesizing and Fresnel diffraction, is proposed for computer generating hologram and numerical reconstructing color object.
它是利用ADC技术把模拟信号转换成数字量,进行存储再现的示波器。
It is an Oscilloscope that use of ADC technology converts analog signal into digital signal and recurrence of storage.
数字地质填图是指区域地质调查数据的野外获取及其成果的数字化统一性再现。
Digital geological mapping obtains regional geological survey data in the field and re-shows its production in digital regularity.
它是通过计算机用数字重现的方法代替光学再现重现物光波。
It substitutes numerical reconstruction for optical method to reconstruct object wave fields by computer.
对设计中无失真再现不同频率信号用到的多采样率变换数字信号处理技术进行了研究。
The multirate transform theory is studied here because it is utilized to reconstruct the waveform of different frequencies signals without distortion.
基于色彩合成的数字彩色全息方法,研究了不同波长的再现光对数字彩色全息图再现像质量的影响。
The effect of reconstructed light on the quality of reconstructed images of digital color hologram was analyzed by introducing offset factor.
为了保护和传承中国的古楚文化,通过数字化技术对当时的文化空间和文化活动进行了动画模拟与再现。
In order to protect ancient Chu-culture of China, virtual reality technique was used to reconstruct and imitate cultural space and historic activity.
最后尝试使用数字图像处理技术对全息图及再现像进行处理,取得了较好的实验效果。
At last, we try to process the holograms and reconstruction image with digital image processing technique. The result of the experiment is satisfying.
结果表明,合成孔径技术是一种提高数字全息再现像的分辨率的有效方法。
The experimental research results show: Synthetic aperture technique can improve the resolution of digital holography evidently.
本文主要研究实现微小或显微相位物体的三维轮廓再现的数字显微全息关键技术。
In this dissertation, digital micro-holography for the reconstruction of three dimensional profiles of the small or micro phase objects and its key techniques are studied.
雅马哈独有的数字声场处理技术,为音乐再现了声学的实际音乐厅和其他场地。
Yamaha's exclusive Digital Sound Field Processing for music recreates the acoustics of actual concert halls and other venues.
整个图像处理过程全数字化,因此可提供很高的信噪比和精确再现原始的画面质量,而且无任何拖尾、开花等现象。
As the entire image processing process is fully digitalized, so it can provide high signal-to-noise ratio and reproduce the original picture, moreover, the picture is free of scratch or tails.
整个图像处理过程全数字化,因此可提供很高的信噪比和精确再现原始的画面质量,而且无任何拖尾、开花等现象。
As the entire image processing process is fully digitalized, so it can provide high signal-to-noise ratio and reproduce the original picture, moreover, the picture is free of scratch or tails.
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