繪制射線 的英文怎麼說
中文拼音 [huìzhìshèxiàn]
繪制射線
英文
ray-
With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics. the software included field section, grid point numbering, and the calculation of electric currents, transconductance and cathode capacitance, moreover, it can simulate the properties of vacuum microeletronic with variant structures and sizes. the relationship was studied and simulated among electic properties and device structures, sizes and cathode materials etc. the optimized design of vacuum microtiode was proposed
本文在深入研究真空微電子器件場致發射理論的基礎上，根據圓錐形、楔形陰極真空微電子三極體的不同特點，分別建立了物理和數學模型，在考慮空間電荷密度影響的前提下，以有限元法為基礎採用迭代的方法計算出真空微電子三極體內的電勢分佈情況，繪制出了等勢線、電子軌跡線，並得到了器件電學性能隨幾何參數的變化情況。Consisting of the protracting graph of hydrogen - like atom ' s angle distributing, computer simulation of the symmetry of molecular orbital and chemical reaction mechanism, showing the molecular point group and symmetry element, computer simulation of molecular vibration, bravias ' s crystal lattice and their transforming, extracting of plane periodic lattice, extracting of solid periodic lattice, close packing of isometrical pellet and the structure of simple mental substance, close packing of unequal pellet and crystal structure of representative ionic crystal, computer simulation of phase analysis by x - ray diffraction
內容包括類氫原子角度分布圖的繪制，分子軌道對稱性和反應機理的微機模擬，分子點群和對稱元素顯示，分子振動運動的微機模擬，布拉維晶格和晶格轉化，平面點陣抽取，立體點陣抽取，等徑網球的密堆積和金屬單質結構，不等徑圓球密堆積和典型離子晶體結構， x射線多晶衍射的微機模擬十個子模塊。In this study, lexa mutant of deinococcus radiodurans xe has been successfully constructed. the survival curve of this strain was measured using colony formation assay after treatment with different doses of radiation and different times of mmc
本研究利用已構建的抗輻射菌lexa基因突變體菌株xe ，經受不同劑量射線照射和不同時間的mmc作用，平板菌落計數，繪制存活曲線。By taking advantages of epipolar line features and depth discontinuities in reference 中國科學院 軟件 研究所 博士 學位 論文 基于 圖 象 的 快速 繪制 技術 的 研究 images ， an efficient inverse wmping algorithm is pfoposed in chapter 3 for gcnerating nagcs of novel views by combining multiple eference images 帆 enhm different vie 呷 oints because continuous segnents determi 。 d by pairs ofedge pixels at co 。 spending epipolar lines are order kept ， only pairs of edge pixels in the reference 渝 明 e e necess 叨 口 cowute to obtain generalized disparity of all points in the desired image as a result ， sighficant acceleraion could be made in the endering pfo 比 鴕 two accelerating techiq 此 s e presented in this algori 山 mb accelerate the hole illing process his algorithm extends the reference images rom projection of single col ： ii ’ ected surface in previously developed nvnverse w 出 下 er to ima 驢 s captured rom complex scene in chapter 4 ， an 《 dent ibr method is prese 庇 仙 y takn ull 訕 antage of 呷 bies c 咖 the method can simulate the 3d details on sllri ： ace of object successfully he 。 叩 proach ， called rered ature mopmp consists of two pans at fst ， an origi 。 ltexture with orthogonal displacements per pixel is deco 啊 osed into a series of new t6 刀 mfcs with each 他 lug a given displacement per pixel ， called ae ， ea atures ， or lt hen hese lt e used to render the novel view by conventional texture mapping d avoid gaps n the endered hlla 驢 ， some phels are to be interpolated nd extended in the 廠 kaccoding to the depth differe eee between two neighbor pixels in the original texture as these ltlt fc … e much storage nd therefore much time is equired to install ltlt into the text ’ ufc buffec an 舊 thod is pfoposed to co 呷 fcss the ltlt ， nd the cottcspondingfclldering method is given experimental esults show that the new method is efficient ， especially n rendering those objects with a smaller depth rnge compared withtheir size ， such as relief surfaces of building
與己有的三維變換方法相比較，該方法不但成功地填補了由於投影區域擴張而產生的第一類空洞，而且成功地填補了由於空間深度非連續物體相互遮擋而產生的第二類空洞，從而方便地實現了虛擬環境中的漫遊；基於物體表面深度的連續性，本文提出了一個位移預測方法? ?此方法可以從單幅參考圖象獲得逆映射過程中所需要的目標圖象的位移信息，從而大大提高了演算法的效率：與通常的正向映射演算法相比，此演算法克服了多幅參考圖象所帶來的計算量成倍增長等問題，而且誤差較小。 2 ）基於極線幾何的快速逆映射演算法。利用參考圖象的邊界信息與隱含的遮擋關系，以及極線幾何的性質，本文第三章提出了一個基於極線幾何的快速3 『一中國科學院軟體研究所博士學位論文基於圖象的快速繪制技術的研究逆映射演算法，從多幅參考圖象精確合成當前視點目標圖象。The traditional algorithm of volume rendering is ray - casting, not a proper algorithm for the large 3 - d seismic data, referring some improved method and considering the characteristic of seismic data, a new fast ray - casting algorithm of oriented image space and negative - view transform was brought forward. as a result, this algorithm excels the traditional obviously by speed with image quality in experiment
體繪制的傳統演算法是光線投射法，由於地震數據量大而繪制速度太慢，本文在借鑒一些改進演算法的基礎上，結合地震數據的特點，提出了一種基於圖像空間的逆視變換的加速光線投射演算法，實驗結果表明該演算法在保證相同圖像效果的同時，具有明顯的速度優勢。Secondly, we analyses the volume rendering based on ray casting, includeing algorithm principle, implementation pipeline. and for the features of medical slice images, improved trilinear interpolation algorithm is presented with an increase of the speed ray - casting in direct volume rendering
其次，詳細分析了光線投射體繪制演算法的基本原理、流程步驟，並針對醫學斷層圖像的特點，提出和實現了改進的三線性插值演算法，從而大大提高了光線投射法的繪制速度。There are two different visualization approaches of 3d - data sets, one is surface rendering algorithm, the other is volume rendering algorithm. the latter is the emphasis of the paper. the paper describes its optical modek algorithm classification and discusses its future applications and problems to be solved
體繪制演算法是本文的研究重點，本文介紹了體繪制演算法的光照模型、演算法分類和發展方向，並以光線投射演算法為例，詳細的論述了體繪制演算法的原理、流程、關鍵技術。If you want, say, a yellow floor you could put your reflected light rendering on a separate layer to allow the same thing
如果你想說，使用黃的底色的話，可以在一個獨立的圖層上繪制反射的光線，表達出同樣的效果。Ray - casting volume rendering and some involved technologies, such as shading model, resampling and mapping, are introduced. a new method is presented to mend ray - casting volume rendering
本文重點討論了光線投射體繪制技術的原理和所涉及的光照模型、偽彩色、重采樣、圖像合成等技術。Applying ray - casting algorithm of volume rendering to the geological data produced by petroleum exploration and exploitation can directly reappear the petroleum ' s status in oil - gas storage, and direct the designers to make sure of the wells " locations and to processes of oil extraction techniques in oil exploitation, in order to raise the profit of the oil production
將體繪制技術中光線投射法應用到石油勘探開發中產生的地質數據中，直觀地再現石油在油氣藏中的狀態，指導設計人員進行井位的確定，以及在石油開采中確定採油工藝的過程，提高石油生產的效益。Draws a pie shape defined by an ellipse specified by a coordinate pair, a width, a height, and two radial lines
繪制一個扇形，該形狀由一個坐標對、寬度、高度以及兩條射線所指定的橢圓定義。The result plots of leakage rate versus acoustic amplitude are the primary basis to determine the feasibility for quantifying leakage rate
並繪制了聲發射特徵值與泄漏率的相關性曲線，為聲發射定量評價泄漏率提供重要依據。Analysis and implementation of volume rendering based on ray casting the related work includes algorithm principle, implementation pipeline and accelerated techniques
基於光線投射的體繪制演算法的分析與實現研究內容包括演算法原理、流程步驟和優化技術。3. presenting a medical visualization testing system this system adopts the volume rendering based on ray casting algorithms and also makes the use of the traditional surface rendering method
實現了一個醫學可視化試驗系統該系統主要採用了體繪制的光線投射演算法，也用到了傳統的面繪制演算法。We combine the algorithm of ray casting and z - buffer to rebuild 3d data, and use marching cubes to create iso - surfaces in 3d regular data sets. several common spatial interpolation are discussed in this thesis, and the famous kriging algorithm in the geological statistics is the emphasis. - four interpolations are used in the case of study, and the results are compared in this thesis
在系統實現中，針對兩類演算法的不同特點，在不同的模塊中選用了兩類演算法中的經典演算法：提出將光線投射法與z - buffer演算法結合實現三維體數據重建；使用移動立方體法實現三維數據場的等值面繪制。分享友人