The fundamental theory for digital lensless fourier transform holography and its applications in 3 - d object reconstruction and optical metrology are presented in this dissertation . ( 1 ) analytical foundation for numerical reconstruction of digital lensless fourier transform holography , namely discrete fourier transform theory , is presented . the basic principle and mathematical model for recording and numerical reconstruction of digital lensless fourier transform hologram is elaborated 主要内容包括： ( 1 )讨论了数字无透镜傅里叶变换全息术数值重建的数学基础? ?离散傅里叶变换的基本理论，分析了数字无透镜傅里叶变换全息图记录与再现的基本原理，建立了数字无透镜傅里叶变换全息图记录与再现的数学模型。
The main press of modern is color printing . it is a process of decomposing , transforming , transmitting and reproducing color information . so then , it introduces the printing system , and analyzes the key to improve the quality and stability of printing 由于现代印刷的主体是彩色印刷，而彩色印刷过程，就是对彩色原稿所进行的颜色分解、转换、传播和再现的过程，所以，本文接着介绍了印刷系统，分析了影响印品质量与稳定性以及印刷进一步自动化的关键问题? ?印品油墨的检测与反馈问题。
( 3 ) a set of digital image processing algorithms for suppression of undesired components and improvement of numerical reconstruction images quality are presented , which consists of hologram contrast - enhancement , band - pass filtering and v - filtering , reconstructed image smoothing , and several reconstructed images adding ( 3 )针对无透镜傅里叶变换全息图数值再现的特点提出了一套图像处理算法，包括全息图预处理、再现图像的带通与v型滤波，再现像的平滑处理，以及再现像叠加平均等算法。
Finally , in our progress toward a resumption of work we require two safeguards against a return of the evils of the old order ; there must be a strict supervision of all banking and credits and investments ; there must be an end to speculation with other people ' s money , and there must be provision for an adequate but sound currency 最后，在恢复工作的进程中我们需要防止旧秩序弊端再现的两项保护措施；必须严格监督一切银行存款、信贷和投资；必须制止利用他人的金钱进行投机活动，必须提供充足而数量合理的货币。
The brief name ring , measures a device right high , inside , low and each segment scope for ability for even emersion of signal , pointing lowestly validity returning putting the frequency with tallestly validity returning put of the frequencying . request towards device rang contain both side , on is a scoping as far as possible breadth , can be namely frequency bottom that replay the is as far as possible low , and the upper limit is as far as possible high ; two is a frequency scope the inside is at all point to respond to as far as possible flat , avoided to appeared the big motion 简称频响，衡量一件器材对高中低各频段信号均匀再现的能力，指最低有效回放频率与最高有效回放频率之间的范围。对器材频响的要求有两方面，一是范围尽量宽，即能够重播的频率下限尽量低，上限尽量高二是频率范围内各点的响应尽量平坦，避免出现过大的波动。
The flourishing of the extreme feature of news is not only as a result of the social reason , which is the gradually deepening of the reform and open and the need of readers , but the need of the news development itself as well , that is , the rapid development of newspaper and the continuous exploration of journalists 兴起于20世纪80年代中期的新闻大特写，是一种对社会热点进行全息性、特写性、深刻性、文学性再现的新闻文体。它的兴起既有社会原因? ?改革开放的逐步深入和读者的需求，也是新闻自身发展要求? ?报纸的迅速发展和新闻工作者的不断探索。
The system software is designed by visual c + + 6 . 0 and model technology , base on windows series operating system . it provides the good theory and application foundation for industrial popularization of log knob ' s automatic detection . the system apply itself to resolve the key problems in computer image processing and simulate reappear technology , taking full advantage of exiting equipment 本论文采用visualc + + 6 . 0程序设计语言，以模块化软件设计技术，在windows平台上，设计了一套原木节子自动识别、节子形状再现的软件系统，为原木节子自动识别的工业化推广提供了良好的理论和应用基础。
