比值影像 的英文怎麼說

中文拼音 [bǐzhíyǐngxiàng]
比值影像 英文
ratio image
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 影 : Ⅰ名詞1 （物體擋住光線后映出的形象） shadow 2 （鏡中、水面等反映出來的物體形象） reflection; image...
  • 像 : Ⅰ名詞1 （比照人物製成的形象） likeness （of sb ）; portrait; picture 2 [物理學] image Ⅱ動詞1 （在...
  • 比值 : specific value; ratio比值法 ratio method; 比值計 ratio meter; 比值檢波器 ratio detector; 比值控制...
  1. The paper presents several aspects in partition rectification and visualization of raster image. adopt technology of visualization for scientific calculation, vector diagram of deformation 、 contour chart of deformation and drawing of three - dimensional are realized. delaunay tin in view of deformation feature is constructed on base of selected grid control points and methods and mathematical models for partition rectification are realized based on the delaunay tin. software of geometric rectification for large scales are realized and applied in project

    本論文針對柵格影像的變形可視化及分塊糾正展開研究，取得了以下幾方面的研究成果：一、採用科學計算可視化技術，繪制變形矢量圖、變形等值線圖和三維效果圖，實現了柵格影像變形特徵的可視化；二、提出了在格網控制點（ gcp ）數據基礎上選擇性構造顧及變形特徵的delaunay三角網，並基於構造的三角網實現了分塊糾正的方法和數學模型；三、採用vc編制了影像幾何糾正軟體，實現大比例尺掃描地形圖的糾正，並在工程中得到應用。
  2. At first we improve the methods of iris image preprocessing, including an efficient arithmetic of evaluation iris images, an improving method of locating iris, calibrating iris image by the translation of coordinate and the circular shift of code, a eatimate of the background illumination by bicubic spline, and the image enhancement by the dual tree complex wavelet transform. next we designed the recognition arithmetic based on the location of the local maxima of the wavelet transform modulus. in the thesis lots of simulation are performed by means of matlab and visual c + +

    首先改進了虹膜預處理方法，實現了一種快速高效的虹膜質量評價演算法;設計了一種改進的兩步虹膜定位演算法，準確的定位了虹膜的內外邊界;利用坐標轉換和編碼的循環移位實現了對虹膜圖像的配準;利用雙三次樣條函數擬合虹膜圖像背景，去除了非均勻光照對虹膜識別的影響;使用二分樹復數小波方法增強了虹膜圖像的對比度;在識別演算法方面，本文設計了一種「基於小波模極值點位置的虹膜識別演算法」 。
  3. Fractal image compression coding is focused attention upon by researchers for it ' s good quality of high compression ration, resolution irrelevancy and fast decoding. but it ca n ' t be put into practice for the matching search of domain and range is too difficult and the coding time is too long

    分形圖像壓縮編碼以其高壓縮比、解析度無關性、快速解碼等優越特性而引起世人矚目，但卻常因為龐大的定義域計算和煩瑣的定義域值域匹配搜索而使編碼時間過長，從而影響了其實用性。
  4. Fluorescence power transfer function, three - dimensional point spread function ( 3d - psf ) and three - dimensional optical transfer function ( sd - otf ) for the various fluorescent wavelength of the two kinds of fluorescence confocal scanning microscopy are calculated in this paper by using fourier imaging theory. the results show that the fluorescent wavelength has influence on imaging property of confocal microscopy such as spatial cut - off frequency, resolution and 3d - otf. there is a different missing - cone in the 3 - d space of otf when the ratio of excitation wavelength to fluorescent wavelength decreases

    本文在sheppard和gumin等人的理論基礎上，利用fourier光學成像理論，討論了不同熒光波長對單光子和雙光子共焦顯微鏡成像特性的影響，導出了單光子和雙光子共焦顯微鏡的熒光功率傳輸函數、三維脈沖響應函數和三維光學傳遞函數，得到了它們在不同激發波長與熒光波長比值時具體的表達式，並且通過數值計算，得到了它們的曲線圖，結果表明：隨著激發波長與熒光波長比值的增加，焦斑的橫向分佈和縱向分佈變窄，橫向解析度和縱向解析度提高，系統的成像效果變好，當激發波長與熒光波長的比值下降到一定程度時，可以看到不同程度的失錐現象。
  5. The method comprises preprocessing an input image for alignment ; comparing the aligned input image with a reference image located with face landmarks ; calculating distances of pixels and pixel rows of the images ; finding a correspondence between pixel rows of the reference image and that of the input image ; and using the correspondence and the face landmarks of the reference image to find face landmarks of the aligned input image

    首先對一輸入影像進行背景消除以及人臉方位導正的預處理，再將導正之輸入影像與一灰階並標示有人臉特徵之參考影像比較，分別計算參考影像與導正之輸入影像之像素列與像素點間的變化相似值，並透過動態規劃技術找出兩影像像素間的最佳對應關系，俾可藉此根據參考影像所標示的人臉特徵位置，找出導正之輸入影像中所對應到的人臉特徵位置。
  6. Chapter 4 : the influence of different phase - shifting angle of reference wave in recording, of the phase - shifting error and of the quantization error on the quality of the reconstructed image is investigated respectively in two - step phase - shifting inline digital holography. and an effective method of eliminating the phase - shifting error is presented, in which the summation of the intensity bit errors of the reconstructed image is taken as an evaluation function for an iterative algorithm to find the exact phase - shifting value. the feasibility of this method is demonstrated by computer simulation

    通過數值分析不同相移角的選取對再現像的強度誤差的影響，發現再現像強度誤差依賴于記錄時相移角的選取，當相移角在一定范圍內，其再現像的強度誤差相對較小；提出了一種有效消除相移誤差的新方法，並將其應用於二步同軸相移數字全息，對此進行了計算機模擬，得到了很好的結果，證明該方法對于相移誤差的消除是很有效的；對量化誤差所作的數值模擬發現，當信號被量化成8比特（ bit ） ，即256個灰度級以上，量化噪聲的影響相對較小。
  7. On a price - to - book basis, which factors out cyclical fluctuations in earnings, the stock is valued at 0. 6 times, a rare instance in which a companys total net assets per share are higher than its stock price

    再看排除了周期性波動因素對利潤所構成影響的股價與帳面價值之比，華潤置地的這一比率為0 . 6倍，像這種每股資產值高於股價的情況是很少見的。
  8. Due to the unique, stable and live physiological properties of the iris and non - invasive to users, most stable and reliable for identification in practical applications of iris - based system, iris recognition is receiving extensive attention and becoming an active topic in biometrics. as an application - oriented research project, iris recognition integrates mathematic, computer science, optics, electronics and physiology etc. based on wavelet transform, aimed to improve the recognition performance, centered at wavelet - based iris feature representation and pattern classification, we review and explore the iris sequence image quality assessment, iris image pre - processing, iris recognition performance evaluation and several other linked topics. we mainly investigate on the principles and application methodology of wavelet transform for iris feature representation and iris pattern classification methods

    以小波變換技術為基礎，結合圖像處理和模式識別方法，設計並開發了虹膜圖像採集裝置，建立了虹膜識別演算法測試實驗平臺;重點研究了虹膜識別中的小波變換的應用基礎理論與關鍵實現技術;提出了基於小波局部模極大值的虹膜特徵表示及其多重匹配識別、基於小波多尺度信息的一維和二維虹膜紋理特徵量化表示、基於小波過零點技術的虹膜特徵表示及其規范化的部分hausdorff距離匹配識別，這三類方法能夠有效地提取虹膜特徵;基於自建的演算法測試平臺，對上述三類方法和其他三種國內外比較有影響的基於小波變換的虹膜識別方法進行了定量的性能比較和評價，通過實驗數據分析得到了有意義的結論;最後指出了小波變換技術在虹膜識別領域的研究重點與發展方向。
  9. Compared with farmland, the spatial distribution of orchard expressed very different characteristics. under continuous scale, distribution of orchard showed a regular pattern such as unevenness small scale : side length of the box was shorter than 8 cells - evenness small and moderate scale : the length was among 8 and 50 cells - unevenness moderate scale : the length was among 50 and 200 cells - evenness moderate and large scale : the length was longer than 200 cells ; human landscape transformation was the major impact factor of landscape changing, and a kind of moderate scale impact factor. the terrain was only a background impact factor ; during domestic landscape transforming in the working area, because the ecological maintenance value of two agricultural elements were not considered, their structural and functional equilibrium decreased gradually

    果園在中尺度區間的空間分佈與農田相比表現出顯著的差異，連續尺度的空間分佈表現出不均勻小尺度：滑箱邊長小於8個像元均勻中小尺度：邊長在850個像元之間不均勻中尺度：邊長在50200個像元之間均勻中大尺度：邊長大於200個像元的變化規律4人為改造作用是景觀動態變化的主要驅動力來源，並且表現為一種中尺度影響過程，地形因子則為背景性影響因素5景觀改造活動由於未能兼顧農業組分在區域生態穩定性維護方面的價值，兩種組分的整體結構和功能穩定性有所降低。
  10. All the results of axial and radial deformation measurement by digital image processing technique and those by traditional method are compared. the differences of the soil parameters on duncan and chang ' s nonlinear model made by these two methods are analyzed. finally, a compress test results and fem results are provided to show the reasonability and veracity of digital image processing technique to study the soil stress - strain characteristic in triaxial test

    （ 2 ）三軸試驗土樣局部變形研究：首先定量比較了三軸試樣沿高度方向不同位置的局部變形（局部徑向變形與局部軸向變形）大小，分析了三軸試樣局部變形的特點和影響因素；然後把三軸試樣數字圖像測量結果與傳統測量結果進行比較，以鄧肯張非線性模型為例進行了模型參數的整理，分析了兩種不問測量方法引起的參數差異：最後用原型壓縮試驗對比有限元數值計算結果，驗證了數字圖像測量方法得到的三軸試驗土體應力應變參數的合理性和準確性。
  11. The influences of recording conditions on the snr of the black - white digital images retrieved from fourier transform holograms were experimentally studied. the holograms were recorded on photoresist plates using an electrical addressed tft - lcslm as a data input device, and a normal ccd camera was applied for detecting reconstructed images

    採用電尋址液晶空間光調制器作為存儲系統的組頁器，常規ccd探測器作為重構圖像的檢測器件，實驗研究了在光刻膠干板上記錄黑白二值條紋圖像的傅里葉全息圖時，記錄條件對重構圖像信噪比的影響。
  12. According to this, we propose a new way to renew the traditional method of subjective image quality evaluation, different to only use mse ( mean square error ) and psnr ( peak signal - to - noise ratio ) to evaluate merely on radiation distortion, and complemented quantitative description on compressed image distortion o it is significant to choose the format of video transferation and measuring precision calculation of tracking and measuring systems based on images

    中國科學院長春光機與物理研究所博士學位論文據此提出了不同於傳統的僅用均方誤差（ mse ）和峰值信噪比（ psnr ）來評價圖像灰度輻射畸變的新思路，補充了對壓縮圖像幾何畸變的定量描述。這對于基於圖像的測量跟蹤系統中數字圖像傳輸方式的選擇，以及評價壓縮解壓演算法對測量精度的影響有重要意義。
  13. Dvd us version - the dvd provides really nice image and sound qualities. yes, it is a silent film, but as you might know, most silent films released nowadays come with a soundtrack

    然而如此，此片實在非常值得大家一看，猶其喜歡比較抽像的電影或是對劇情有期待的朋友，更是不容錯過。
  14. During image recognition, it reduces the yawp and improves the quality of the image with the technology of the median filter, it uses the method of maximum between - class variance to segment the object, then gets better effect. the algorithm is simple, and the adapted capacity is great. it doesn ’ t influence by the change between the contrast and lighteness of the image. so it applies on the real time system

    在圖像識別過程中，本文運用了中值濾波技術降低了噪聲，提高了圖像的質量，並採用了最大類間閾值分割法分割目標，得到了較好的效果，該方法計算簡單，自適應性強，在一定條件下不受圖像對比度與亮度變化的影響，因而在一些實時圖像處理系統中得到了廣泛的應用。
  15. The proportion based on the assistant data is used as the prior probability to replace the prior value in the conventional supervised classification ; the farther iterative prior probability is applied into classifying progress on landsat tm image

    由輔助數據中計算各類別面積比率作為先驗概率，替換傳統監督分類中的先驗值，並進一步對先驗概率進行迭代，最後利用改進的先驗概率對landsattm影像進行分類實驗。
  16. 18even where america and china do compete, as in electronics, the high import content of china ' s exports blunts the impact of exchange - rate movements on export prices, because a rise in the yuan reduces input costs

    即使是在像電子業這樣中美之間存在競爭的產業上，因為人民幣升值會減少在中國出口產品中佔大比重的外購成本，所以這就削弱了升值對出口價格的影響。
  17. The digitally remastered dvd vcd released by celestial pictures ivl is excellent, the picture and sound qualities are so good that it s not hard to believe if someone says this is a brand new movie produced this year. the dvd also comes with some special features like trailers and interviews

    經過數碼修復的vcd dvd版本，畫質之清晰猶如一2003年的全新影片一樣，配上2 . 35 : 1的視像比例效果，單看此片的影像已覺值回票價。
  18. With over 7 years experience worked in the field of retail channel in kodak, i joined add - value service development project team of kodak china from 2002. base on research of kodak imaging network and add - value service development path of china tele - com industry, this article trying to analyze the kin development environment and path, point out the competitive advantage led by retail add - value service

    本文以柯達在中國基於加盟連鎖店的零售連鎖增值業務問題為研究對象，結合對中國電信行業增值業務問題的研究，分析柯達零售連鎖系統的發展環境及道路，闡明開發增值業務的必要性；剖析影像零售業的發展趨勢，分析相比其他同業者，零售增值業務發展所能帶來的競爭優勢。
  19. We discuss the visual information from texture image and the cause of texture distortion, and then present a simplification algorithm with texture in chapter three. the visual information from different parts of texture image is measured by color variation, and the possibility of texture distortion is measured by the unevenness of texture intensity ( the area of a triangle ' s corresponding texture divided by its area in geometric space )

    該演算法考慮了紋理扭曲的成因和紋理圖像內容對視覺的影響，用邊緣檢測的方法度量紋理圖像上不同區域對視覺影響的大小，用紋理密度（三角形對應紋理區域的大小和它在三維空間中面積的比值）的變化度量紋理扭曲發生的可能性和嚴重程度，並把這些與紋理相關的誤差度量和幾何誤差度量結合。
  20. In this paper, we define an edge in an image as an area which intensity is sharply variation. the edge preservation is to preserve the gradient of edge areas. based on edge definition, we develop a method to evaluate speckle filters in tern of edge preservation : compute ratio between the sum of gradient absolute value in the edge area of filtered image and original

    在研究中發現邊緣的概念比較模糊，而邊緣的概念對研究斑點濾波方法邊緣保持能力有重要的影響；本文認為在sar圖像處理中邊緣對應圖像像元值變化較大的區域；邊緣保持是保持邊緣區域的梯度；根據這個定義發展了邊緣保持評價方法：計算去斑點圖像和原始圖像邊緣區域內梯度絕對值和的比值。
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