面全息圖 的英文怎麼說
中文拼音 [miànquánxītú]
面全息圖
英文
surface hologram- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
- 全 : Ⅰ形容詞1 (完備; 齊全) complete 2 (整個) whole; entire; full; total Ⅱ副詞(完全; 都) entirely...
- 息 : Ⅰ名詞1 (呼吸時進出的氣) breath 2 (消息) news 3 (利錢; 利息) interest 4 [書面語] (子女) on...
- 圖 : Ⅰ名詞1 (繪畫表現出的形象; 圖畫) picture; chart; drawing; map 2 (計劃) plan; scheme; attempt 3...
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We fabricated a large computer - generated holography on a concave lens surface to test the convex secondary mirrors surface
在凹透鏡表面上製作出了用於凸非球面檢測的曲面全息圖。Admittedly, it is not at all obvious that by now shining a plane wave through the processed hologram one could reconstruct an image of the original object.
當然,我們還根本看不出,用一個平面波照射處理后的全息圖,為什麼能再現原來物體的一個象。This system provides photo elastic, moire, holographic, speckle technology contained in optical measure strain and displacement analysis software interface, and mainly realizes photo elastic image collection, interference image pretreatment, automatic skeleton extract method, automatic main strain trace protraction method and planar photo elastic image strain analysis function. all the work that the author has done has established a good foundation for more realization of an intact optical measure image strain analysis software system. furthermore, engineer and lab assistant can quickly obtain concise, intuitionistic and quantificational information
該系統提供了光測力學所包括的光彈法、雲紋法、全息法以及電子散斑法等技術應力和位移分析軟體實現的介面,主要實現了等差線圖像和等傾線圖像的採集、干涉條紋圖像預處理、全自動提取光彈條紋圖像骨架線、全自動繪制主應力跡線以及二維光彈應力分析功能,為進一步開發完整的光測力學圖像應力分析軟體奠定了基礎,同時使工程技術人員以及實驗人員能夠迅速的獲取簡明、直觀、定量的信息。Computational flow imaging ( cfi ) uses theoretical predictions of the interaction and transmission of optical waves through theoretical flowfield to generate digital pictures that simulate real observations. it was used to construct flow visualization corresponding to shadowgraph, schlieren, interferometric and planar laser induced fluorescence ( plif ) images. by providing a better insight into the flow physics and cfd code behavior, cfi is proving to be extremely useful to experimentally validate cfd codes
計算光學流動顯示技術( computationalflowimaging - cfi )就是把數值計算( cfd )獲得的流場中的物理場,經過與實驗相同的計算光學(全息干涉、紋影、陰影、平面激光誘導熒光)的過程轉換為所需的各個方向與試驗流動顯示圖像相對應的計算流動圖像。In the thesis. reading the iges file - 3 - and all the geometry entities and annotation entities are extracted ; on the base of geometry entities extracted, geometry entities are classified based to their three views. a new data structure is proposed to describle 3d form features ; inspection items of the workpiece are recognized ; the cmm - based inspection planning system is built ; on the other hand, as a part of cims, cmm need exchanging data with the software of cad / cam, so iges export interface is developed based on iges standard. in order to show the whole information of the surface, the 3 - dimensional free - form surface is drawing using the opengl
通過讀取iges文件對實體進行分離、提取、識別出對工件進行描述的原始信息;在此基礎上,西安理工大學碩士學位論文提出一種優化演算法對三視圖自動進行分離,建立了一種對工件進行三維描述的數學模型,照此模型對工件進行立體重構;識別出工件的各種檢測信息,提出一種對公差信息進行描述的數學模型,井與三維立體相結合,生成有檢測意義的三維實體;根據三坐標機的測量系統,生成相應的檢測規劃;另一方面,作為cmis的一部分,應具有與cad cam軟體之間的數據交換功能,本文還開發了iges輸出介面,採用opengl繪制三維空間曲面,向用戶展示其全面信息。The dynamic behaviors of both electrons and irons in the case of light illumination and elevated temperature are analyzed, and hereby the optical erasure effect of subsequent recording light on fixed electronic gratings and the thermal erasure effect of subsequent heating on revealed ionic gratings are presented
本論文深入研究了分批存儲定影過程中電子和離子在光照和高溫作用下的動態特點,全面描述了全息圖寫入過程中的兩種光擦除作用以及高溫熱定影過程中的補償和平滑機制。( 5 ) digital holograms of static particles and particle field ( multi - layer ) are recorded in the experiment. and the reconstructed particle images are gained using the envelope method with two different reconstructed waves - plane wave and spherical wave, respectively
( 5 )從實驗上拍攝了單層靜態粒子靶和多層靜態粒子靶的數字全息圖,並分別用平面波和球面波實現了該模擬粒子場的數值再現,得到了清晰的粒子像。On the left of the right side of the bill is a design of the monument of heaven that can be seen in a transparent area and on the right is an active holographic mark. on the reverse side is china millenium monument, a key construction marking advent of the millenium
其主色調為金黃色,正面主景以北京九壁「升」為設計依據, 「 」的左側為「火珠」吉祥圖案,票面左側透明視窗為「天壇」圖案,右側為動態全息標志。It is bright - yellow colored, with a writhing dragon, symbol of the chinese nation, spurting out a flaming ball on the right side. on the left of the right side of the bill is a design of the monument of heaven that can be seen in a transparent area and on the right is an active holographic mark
其主色調為金黃色,正面主景以北京九龍壁「升龍」為設計依據, 「龍」的左側為「火珠」吉祥圖案,票面左側透明視窗為「天壇」圖案,右側為動態全息標志。The reference beam comes from the object wave itself and image of the object is formed by a lens on the plane of the holographic plate, therefore the hologram is named self reference image hologram
用透鏡將物體的像成在記錄干板平面附近,參考光來自物光本身,因此稱之為自參考像全息圖。The unfocused hologram of lensless fourier holography are also discussed, and a way to revise the reconstruction image of unfocused hologram is presented. ( 2 ) the reconstruction of image plane hologram is analyzed by plane wave theory. the image plane holograms of transparent and opaque objects are also obtained by using fibers
( 2 )用角譜理論分析了像面全息圖的再現過程,採用光纖傳光分別拍攝了透射和反射物體的像面全息圖,並利用頻域法對全息圖進行數值再現,得到了物體較清晰的再現像。First, by using coordinate rotation, we have discussed the computer - generated hologram composed by planar object whose plane does n ' t run parallel with that of its hologram. second, through coordinate transform, the computer - generated hologram of curvy planar object has been discussed again, in which, conformal map in computer graphics has been creatively applied, and generated the computer - generated hologram of simple curvy plane ( e. g. spherical surface ) ; also, in this section, the correctness of transformation has been confirmed by numerical reconstruction
首先利用坐標旋轉討論不平行於全息面的平面所構成的物體的計算全息圖:接著採用坐標變換討論曲面物體的計算全息圖,創造性地將計算機圖形學中的共形對應原理運用到計算全息中,生成了簡單曲面(如球面)物體的計算全息圖,並用數字重現驗證了變換的正確性,為今後復雜三維物體的計算全息圖的研究奠定基礎。In order to investigate the phenomenon that holograms tend to be deteriorated on baing recorded in photopolymers with shrinkage, a fourier hologram is taken with slant gratings formed by the reference beam and object beams of different space - frequency
摘要為了分析光致聚合材料記錄的譜面全息圖在再現過程中發生「擦除」現象,將譜面全息圖看作由不同角譜的物光與參考光在光致聚合材料內形成的不同傾斜角度的光柵總和。The main contents are : ( 1 ) the recording and numerical reconstruction of lensless fourier hologram are analyzed by spherical wave theory
主要內容包括: ( 1 )用球面波理論分析了無透鏡傅里葉變換全息圖的記錄和再現過程。Shown below are specific features of edge - to - edge holographic cd ' s
下面介紹邊到邊全息圖像光盤的具體特徵。( 2 ) computational simulations on in - line holography of single particle, multi - particle in one plane and particle field ( multi - layer ) are performed. a technique to find the focal plane is given according to the gray - gradient curve of the particle image. an improved numerical reconstruction method is proposed, which can eliminate the border diffraction
( 2 )對同軸粒子全息圖的記錄和再現過程進行了數值模擬,提出了根據灰度梯度曲線判斷粒子成像平面的方法,同時提出了一種可有效消除全息圖邊框衍射條紋的改進演算法。The holographic wavefront recording process records the interference pattern of the object and the reference waves, and thus forms the hologram, which simultaneously records the information about the amplitude and phase of the object waves ; the holographic wavefront reconstruction, by means of the diffracted waves, can reconstruct the original object wave from the hologram illuminated by lights
全息波陣面記錄將物光和參考光以干涉條紋記錄成全息圖,此全息圖同時記錄了物光波的振幅和相位;全息波陣面重現,就是用光波照射全息圖,通過光的衍射,從全息圖中再現出原始物體的光波。( 1 ) basic mathematical model for recording and numerical reconstruction of digital hologram is elaborated. the core of digital holography is the algorithm of numerical reconstruction. two different approaches for numerical reconstruction of digitally sampled holograms are investigated, namely the fresnel transform algorithm and the frequency domain algorithm, which are deduced from the diffraction theory of spherical wave and plane wave respectively
( 1 )從理論上詳細闡述了數字全息圖記錄與再現的基本原理,建立了數字全息圖記錄和數值再現的數學模型,根據光波衍射的球面波和平面波理論,給出兩種不同的數值再現思路,即頻域再現法和菲涅耳變換法。( 2 ) the serious recording limitations due to the finite size and resolution of ccd are discussed detailedly. it ' s shown that the setup for recording hologram with spherical reference wave can make full use of the spatial bandwidth of ccd
( 2 )著重討論了ccd參數對記錄條件的限制,給出了數字全息術所能記錄的物體的最大尺寸與記錄距離之間的關系,指出用球面參考光波記錄全息圖可以更為有效地利用ccd的有限帶寬。( 3 ) various digital image - processing techniques for suppression of undesired components and enhancement of quality in numerical reconstruction images are considered, such as hologram contrast - enhancement, hro subtraction, mean value subtraction, frequency domain filtering and spectrum expansion with conjugation symmetry property
( 3 )從理論和實驗兩方面分析了全息圖對比度增強、平均值相減、 hro 、頻譜濾波等數字圖像處理技術,及其在消除全息圖衍射0級和孿生像,提高數值再現像信噪比方面的作用。分享友人