optical hologram 中文意思是什麼
optical hologram
解釋
光學全息圖-
The work of this thesis has four parts : in the first part, we will describe completely the developing history of optical holography and analyze its formation geometrically, moreover we also introduce the physical process of the recording and reconstruction of the hologram, and use the simple mathematical formulas to describe it
本論文所作的工作主要有四部分：第一部分詳盡地敘述了光全息術的發展歷史，介紹了全息圖的記錄與再現的物理過程並進行了幾何分析，用簡單的數學公式表示全息圖的形成過程。 -
By combining the advanced computer technology and optical holography technology together, computer - generated hologram can generate holograms, which, with no demand for objects, can be reconstructed through optical ways after the computer has processed the mathematical description of object waves
計算全息是將先進的計算機技術和光全息術結合起來，利用計算機產生全息圖。它不需要物體實際存在，而是把物波的數學描述輸入計算機處理后，繪制出全息圖，然後用光學方法重現。 -
Typical computer generated holography ( cgh ) and hologram synthesis that simulate typically optical holography need to compute a huge 2 - d holographic fringe, or to lose some 3 - d information and resolution to reduce data. the first real - time display of holographic images was reported in 1990 by the mit spatial imaging group. but this is still an open problem because view angle of holographic images, volume and speed of transmit are limited
傳統的研究集中在計算機生成全息圖（ computer - generatedholography ，簡稱cgh ）和全息圖綜合的方法上，採用模擬光全息的物理方法，從而導致數據量龐大，無法在現有硬體上完成實時處理，或者靠損失部分三維信息和解析度以減少數據量，但失去了真三維顯示的效果。 -
The patent covers the use of a computer - designed diffraction grating, a type of hologram that takes a single beam and breaks it up into an array of beams, each one of which forms an optical trap for particles of micron or nanometer dimensions
此專利涵蓋了電腦設計的繞射光柵，以及可將單一光束分散成陣列光束的雷射全像術，其中每道光束都會形成光阱，可捕捉微米或奈米大小的粒子。 -
Digital holography is a novel imaging technique which uses high - resolution ccd - cameras as hologram recording medium and reconstructs the image with numerical method. it involves optical holography, computer science, electronic technology and digital image processing. in recent years, particle analysis with digital in - line holography is an active research field
數字全息術用ccd記錄全息圖，以數值的方法再現全息圖，它綜合了光學全息原理、計算機技術、電子技術以及圖像處理技術，是一種新穎的全息成像技術，具有處理簡便、對實驗環境要求較低、可實現準實時處理等優點。 -
Digital holography is a new imaging technique that uses a charge coupled device ( ccd ) camera for hologram recording and a numerical method for hologram reconstruction. this paper presents the concept and underlying theory for digital holography and its applications in 3 - d object reconstruction and optical metrology
數字全息術以ccd等光電探測器件記錄全息圖，用數值方法再現全息圖，它是綜合光學全息原理和計算機技術、電子技術以及數字圖像處理技術發展起來的一種新型全息成像技術。 -
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
主要內容包括： （ 1 ）討論了數字無透鏡傅里葉變換全息術數值重建的數學基礎? ?離散傅里葉變換的基本理論，分析了數字無透鏡傅里葉變換全息圖記錄與再現的基本原理，建立了數字無透鏡傅里葉變換全息圖記錄與再現的數學模型。
分享友人