線成像 的英文怎麼說
中文拼音 [xiànchéngxiàng]
線成像
英文
line imaging-
And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed
研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。Based on projective geometry, the research works about 3d invariance ' s extraction and application have been done in this thesis as following : ( 1 ) the basic theories and concepts in projective geometry are systematically summarized. it includes : the camera models of perspective imaging, projective collineation, cross ratio, a simple compare about invariance ( invariant ) among some geometry transformations, fundamental matrix, epipolar and epipolar line in epipolar geometry, and so on. ( 2 ) the calculation methods for 2d projective transformation are extended from points to multi - element, which includes points, lines, points lines and so on, to get the relationship between two projective planes
基於射影幾何理論，論文圍繞3d不變特徵的提取和應用進行了如下的研究工作： （ 1 ）系統總結了射影幾何中的若干基礎概念，包括：透視成像的相機模型、射影對應、交比不變量、基於不同幾何變換下的不變量的簡單對比、對極幾何中的基礎矩陣、對極點、對極線等。Intrabuccal digitized image radiographic prints
口腔內數字成像射線照相相片Extreme foreshortening, shooting on the diagonal, straight down from a considerable height or straight up from the ground ? all these are known to this day as “ rodchenko angles ”
極短的前景，對角線成像，從治高處向下取景，或是從低處向上取景，這些至今都被稱作「羅申科視角」 。Code v algorithms are a key and dominant technology in the design of the microlithographic lenses that permit the imaging of ultra - fine lines on computer chips ? a necessary ingredient in the continuing improvement of computer speeds
Code v演算法在設計微影成像鏡頭方面是一個關鍵的和主要的技術，微影成像鏡頭允許在計算機晶元上作超精細線成像?這在計算機速度的持續改進中是一個必然的組分。On the basis of increasing the flaw resolution of the x - ray radiographic system, the study is firstly concerned with the analysis made on the influence of such factors as redial sources energy, system noise, optics radiography and scattering on the radiographic system in theory, and the present dissertation looks at the methods for acquiring the radiographic system point sp read function, line spread function and module transfer function ( mtf ). on the basis of these studies, research the spread properties of the tiny flaw making use of mtf, acquiring the properties of system inspecting sensitivity and resolution, based on the system optimization designing
本文以提高射線成像系統的疵病解析度為前提，首先在理論上對射線源能量、系統噪聲、光學成像、散射等各環節對成像系統的影響進行分析，探討成像系統的點擴展函數、線擴展函數及其調制傳遞函數（ moduletransferfunction ，簡稱mtf ）獲取方法，在此基礎上，利用mtf研究微小疵病的擴展特點，從而得到系統的檢測靈敏度和解析度給出關系特性，為系統優化設計提供依據。Such satellites could be useful, for instance, in uncovering a tank hidden by a camouflage net, because infrared imaging would detect the heat coming from the engine
這種衛星在尋找偽裝網下的坦克等目標時可能很有用，因為紅外線成像可以捕捉到坦克發動機散發的熱量。Diagnostic x - ray imaging equipment - characteristics of mammographic anti - scatter grids
診斷用x -射線成像設備.抗網格擴散的早期胸部腫瘤x -射線攝影特性" the rings are different from the picture we had in our minds, " said larry esposito of the university of colorado at boulder, who led the study done using ultraviolet imaging
照片上的土星環跟我們想的樣子不一樣，負責運用紫外線成像完成該研究的科羅拉多大學波德分校的拉瑞艾斯波西多表示。Generally, the size of the flaw is distinguished by x - ray radiographic system, described by density resolution and space resolution, but it is proved experimentally that the space resolution is not always high while the density resolution is high, and the density resolution is not always high while the space resolution is high
通常x ?射線成像系統可分辨疵病的大小，常用密度解析度和空間解析度來描述，但試驗證明，當系統的密度解析度高時，系統空間解析度不一定高，而空間解析度高時，系統的密度解析度也不一定高。As a creative x - ray imaging mechanism, the x - ray photograph and digitalizing technology has been widely used in medical treatment because of its non - physical film storage
X線攝像技術與數字化的結合，擺脫了常規的膠片式存儲與管理模式，作為一種新型的x線成像方式，廣泛地應用於臨床。This paper designs the icicle - iced plate model based on the ice - covered insulators and makes an investigation in artificial climate chamber by using corocam iv + and data acquisition card and so on
本文根據絕緣子覆冰后傘裙邊緣的冰凌特徵設計了冰柱-冰板間隙模型，利用紫外線成像儀和數據採集卡等設備，在人工氣候室內對該間隙模型進行了試驗研究。It possess many of the physical properties such as high atomic number ( z ), large enough band gap, high resistivity, relatively low leakage currents, and high intrinsic mobility - lifetime ( ut ) product, which are required for room - temperature nuclear radiation detectors. so it is widely used in nuclear medical imaging system, space engineering, and astrophysics, environmental monitoring, and so on. in addition, it is the best substrate for lattice matched epitaxial growth of hg1 - xcdxte ( mct ) thin films and solar cells
用單晶czt製成的探測器可在室溫下工作，工作溫度范圍寬（ - 20 40 ） ，能量探測范圍寬（ 10kev 6mev ） ，對x射線、射線能量解析度高，在x射線、射線成像、天體物理研究、工業探測、安全檢測、核輻射探測、核廢料監控、 x射線熒光分析（ xrf ） 、 x射線斷層掃描和核醫學等方面有重要用途。Diagnostic x - ray imaging equipment - characteristics of general purpose and mammographic anti - scatter grids
X射線成像診斷設備.通用和乳腺x線照射反散射柵的特性Diagnostic x - ray imaging equipment - characteristics of general purpose and mammographic anti - scatter grids iec 60627 : 2001 ; german version en 60627 : 2001
X射線成像診斷設備.通用和乳腺x射線照相的反散射柵的( 5 ) three ert reconstruction algorithms are analyzed and compared by the simulation gas / liquid two - phase flow experiment data. their name is the sensitivity coefficient algorithm, the combination algorithm of tikhonov regularization and algebraic reconstruction technique ( art ) and the modified bfgs ( mbfgs ) algorithm
（ 4 ）對實驗中測得的圖像數據，分別採用了靈敏度系數法、 tikhonov正則化技術和art相結合的組合型圖像重建演算法、改進的bfgs演算法進行離線成像。It has particular advantage in such cases when the traditional transmitted radiation imaging modality fails
在一些無法利用傳統透射線成像的情況下，康普頓散射成像具有獨特的優勢。Design of solid - state detector modules for high energy x - ray imaging
射線成像系統固體探測器模塊的設計The study intends as a solution to the problem of the optimization designing of the system and the quantification inspection ubiquitously in the x - ray radiographic inspecting system, based on full comprehension and researching of high - energy x - ray digital radiography ( dr ), computerized tomography ( ct ) inspecting system, after analyzing the influence of such factors as the sensitivity of the system, the optimization designing of the radiographic inspecting system and the quantification inspection of the tiny flaw being the abrupt change structure are discussed
本論文針對x射線成像檢測系統中普遍存在的系統優化設計和定量檢測問題，在充分了解和研究高能x ?射線數字成像（ digitalradiography ，簡稱dr ） 、計算機層析成像（ computerizedtomography ，簡稱ct ）檢測系統的基礎上，通過分析影響系統靈敏度的因素，探討了射線成像檢測系統的優化設計和突變結構處微小疵病的定量檢測方法。For reasons of the economical and technical limitation, the digitization of x - ray imaging has not been widely used in our country
由於技術和經濟條件的限制，國內x線成像的數字化一直未能大規模順利實施。分享友人