射影映射 的英文怎麼說

中文拼音 [shèyǐngyìngshè]
射影映射 英文
projecting mapping
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 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...
  • 映 : 動詞1. （因光線照射而顯出物體的形象） reflect; mirror; shine 2. （放映） project a movie
  1. A projection is defined as any orderly system whereby the meridians and parallels of the spheroid may be represented on a plane.

    投影是一種有規律的方法，用來把橢球面上的子午圈和平行圈映射在一個平面上。
  2. We make use of a mapping known as stereographic projection.

    我們作一個稱為球極平面射影的映射。
  3. Modeling : this thesis develops a method different from traditional techniques that begins with the cylindrical projection of a generic model and its seamless global texture map using multiresolution technique, and then automatically fit the unwrapped cylindrical projected mesh to the texture map with an improved algorithm that based on 2d morphing to specify corresponding feature points ( or lines ). finally, we propose a formula of inverse cylindrical projection to recompose the deformed mesh, and after the texture mapping a photo - realistic individual facial model is created

    採用多解析度技術構造紋理無縫拼接圖，然後把三維網格模型投影到圓柱面上並展開，根據二維圖象變形技術中特徵點匹配演算法的數學思想，將匹配公式進行改進后應用於模型網格點的適配，在作了一定假設后推導出逆向圓柱映射的計算公式，再將適配后的柱面網格映射回去，最後進行紋理映射生成真實感的特定人臉的三維模型。
  4. 2. shadow plays an important role in 3d scene. studying and comparing different shadow algorithms, emphasizing on two prevalent algorithms, shadow mapping and shadow volume

    陰影效果對于增強三維場景的真實感有著非常重要的作用，本文研究和比較了各種陰影生產演算法，重點討論了目前生成陰影的兩種主流演算法? ?陰影映射演算法和影域演算法。
  5. The computer speed is speeded up. the numerical results of the present models are in agreement with the theoretical solution and those of physical models. systematical numerical tests show that the present models can reasonably simulate the wave transformation, such as shoaling, refraction, diffraction, reflection, effect of currents and so on

    比較詳細的模型驗證與應用表明，模型的數值模擬結果與解析解、物模實驗值吻合良好；可以較好地模擬波浪傳播過程中的淺水變形、折射、繞射和反射等多種現象；能正確合理地反映水流對波浪傳播的影響。
  6. This also protects your code from real - world currency changes, which can happen unexpectedly and invalidate the jdk s latest rule set for mapping locales to currencies. phileas fogg, the protagonist of

    這也可以保護代碼免受現實世界貨幣變化的影響，這種變化發生是非預期的，並且會使jdk用於映射地區到貨幣的最新規則失效。
  7. 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。
  8. The dual - time stepping method proposed by a. jameson is applied to improve time precision for unsteady flowfield computation. the three dimensional grid for projectile with lateral jets, especially body - fitted for lateral jets exit, is generated by improved traditional methods with projection and zonal method

    在改進傳統網格生成方法的基礎上，結合投影映射、分區拼接技術生成了彈丸側噴流場單一區域三維計算網格，在側噴流噴口邊界實現了網格貼體化。
  9. The discontinuous flow prevention and control technology under the conditions of dry season is an issue of extremely complicated, numerous affecting factors and high nonlinear cause - and - effect relationship

    枯季徑流條件下斷流防治技術是極其復雜的、影響因子眾多的、高度非線性映射（因果）關系的問題。
  10. With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion

    研究結果表明：通過對rpc各組分摻量變化的研究，可以找到rpc的最優配合比；試件成型后的熱養護制度對rpc的性能影響巨大； rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況，剛纖維的摻入可以大幅改善rpc的韌性； rpc在成型后存在較大的收縮，而其中的化學收縮要遠遠大於乾燥收縮； rpc具有很強的抗氯離子滲透性能，漿體的密實度很高；通過x射線衍射實驗，可以發現rpc的膠凝體中ch晶體已經幾乎不存在，膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成；在抗溶液侵蝕的實驗中，摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件，酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用，但是機理各有不同。
  11. The furniture once appropriated to the lower apartments had from time to time been removed here, as fashions changed : and the imperfect light entering by their narrow casement showed bed - steads of a hundred years old ; chests in oak or walnut, looking, with their strange carvings of palm branches and cherubs heads, like types of the hebrew ark ; rows of venerable chairs, high - backed and narrow ; stools still more antiquated, on whose cushioned tops were yet apparent traces of half - effaced embroideries, wrought by fingers that for two generations had been coffin - dust

    一度歸層次更底房間使用的傢具，因為時尚的變更，逐漸搬到了這里。從狹窄的窗扉投射進來的斑駁光影，映照出了有上百年歷史的床架映照出了橡樹或胡桃樹做的柜子，上面奇怪地雕刻著棕櫚樹枝和小天使頭部，看上去很像各種希伯萊約櫃映照出了一排排歷史悠久窄小高背的椅子映照出了更加古老的凳子，坐墊上明顯留著磨損了一半的刺繡，當年做繡活的手指化為塵土已經有兩代之久了。
  12. Directly painting textures on top of 3d objects in 3d perspective viewport is a new issue of human - computer interface ( hci ). this paper presents a method to solve this issue. it converts the position information of the texture pixels of texture map into color information ， and then transfers both the coordinates and the color of texture pixels into screen through texture mapping at the same time. only is the color information of texture pixels converted into illumination by calculating the normal and the angle of ray incidence of the screen pixel in the method. the texture coordinates are firstly converted into the color information by generating another texture map ， which is called information map whose pixels ' color represents the coordinates information. and then the corresponding texture coordinates are mapped into screen reference frame by texture mapping and stored into information buffer for later use. so we can obtain the texture coordinates of screen pixels correspondingly by decoding from information buffer. after optimizing ， we can paint textures on top of 3d objects in 3d perspective viewport in real time. the paper also gives some examples and related definitions of using additional information of 2d texture map for 3d graph generating

    針對三維逶視投影視圖中對三維物體表面紋理直接進行噴繪，以獲得復雜紋理圖這一計算機圖形交互技術這一新問題，研究了一種將紋理圖的象素位置信息轉換成彩色信息，然後利用紋理映射將紋理坐標連同該點上的顏色值一起傳遞到與屏幕象素對應的可見點上的方法，其中顏色值依該點處的入射光線方向和表面法向被進一步轉換為光強值，而紋理坐標則被解碼后還原成與該可見點對應的紋理坐標，被存入信息緩沖器中，供以後使用，通過解碼，可根據屏幕點直接得到對應紋理象素點的坐標，經過演算法優化，實現了對三維物體表面紋理的實時噴繪；同時闡述了在三維圖象生成技術中使用附加紋理信息的應用實例以及相關定義
  13. As the scheme of packet distributed influence the performance of parallelism, in this paper, the hdw ( hash - based dynamic weight ) scheme for allocation packets in network processors is presented. the scheme is building and keeping one mapping relationship between packets ’ identifier and pes in a table of hash. the mapping formula is derived from the hrw ( highest random weight ) scheme, it is complemented by a feedback control mechanism designed to monitor processor ’ s utilization

    由於報文分配策略影響網路處理器并行性能，我們提出了hdw （ hash - baseddynamicweight ）負載分配演算法，基於報文流標識與pe間建立映射關系，並將映射關系保存在哈希表中，映射關系基於hrw （ highestrandomweight ）演算法，增加了負載反饋迴路監控pe負載狀況，通過動態調整策略阻止pe間負載偏差。
  14. There are two main factors to influence materialized views in pdmss. one is that schema mappings between peers are changed, and the other is that peers update their data

    在pdms中有兩個主要因素影響物化視圖：第一是peer之間的模式映射發生了改變，第二是有peer更新了它的數據。
  15. Chandeliers and pillars of stone, their edges and shadows doubled in the glass - smooth surface of an underground pool, have awed visitors to the reed flute cave in china ' s guangxi zhuangzu region for more than a thousand years

    石墜、石柱的陰影輪廓映射在光滑如鏡的地下湖表面，讓遊客對中國廣西壯族自治區上千年的蘆笛巖贊嘆不已。
  16. According to the utilized face database, three facial expression categories are defined : neutral, happiness and anger. the categorization architecture is based on a som. in order to eliminate influence of initial values and sequence of input examples in som, supervised learning is introduced into the training stage

    分類器的設計採用的是基於自組織神經網路的方法，為了克服傳統的自組織映射神經網路的訓練結果容易受訓練樣本的輸入順序和權值初值影響，而導致訓練結果不符合期望的問題，因此，在訓練過程中引入了監督機制，以使訓練結果與期望相符。
  17. In feature extraction step, we apply homogeneity into text detection, and we compare using the gradient, edge extract and homogeneity mapping to enhance corners and texture features, and then use a slip window to get different kinds of texture features as the feature vector, and then after comparing the accuracy result of svm and bp neural network, we choose svm as the classifier

    在特徵提取步驟中，本文把一致性h應用到文本區域提取領域，使用邊緣空間映射和一致性h空間映射兩種方法得到特徵圖像，並比較了兩種空間對于文本提取的影響;對得到特徵圖像，使用滑動窗口比較了提取不同維數的紋理特徵作為特徵向量的結果。
  18. The thesis discusses the design process based on axiomatic design. the designer goes through a process whereby he / she can zigzags between domains - functional, physical, completes the decomposition and judges the independence of function and the consistency of decomposition

    本文以公理設計為理論依據，應用公理設計理論設計框架，通過功能域和結構域之間的映射變換，完成產品的功能結構分解以及功能獨立性和設計分解一致性的分析，得到產品的等級結構模型，和各個組成部分之間的相互影響關系。
  19. Furthermore, by using the database with increased quantity and details need to handle the datasets which do not fit in ram ( out - of - core datasets ). meanwhile, advances in shading and image quality in general have raised the bar for image quality we would like to achieve in terrain rendering a in this thesis, we propose an efficient hardware - friendly framework - chunked lod, for large - scale terrain real - time rendering. within this framework, the approach for integrating multi - resolution representations of terrain geometry and terrain texture data is presented

    變換和光照（ transform & lighting ） 、立方環境材質貼圖（ cubicenvironmentmaps ） 、頂點混合（ vertexblending ） 、紋理壓縮（ texturecompression ）和凹凸映射貼圖（ bumpmapping ） 、雙重紋理（ dualtexture ）四像素256位渲染等均可以在gpu中完成，大大減輕了cpu的壓力，對實時圖形渲染產生了深遠的影響，這其中包括實時地形渲染。
  20. A mechanics model has been presented to predict and judge the possibility of piping occurring based on the analysis of process of piping occurring and the factors affecting on the occurring of piping. a set of factors which have significant effects on the occurring of piping as well as more easily to be observed and measured have been selected as the input of artificial neural network by the developed mechanism model, and the mapping relation has established between the factors affecting on the occurring of piping and the index of occurring of piping

    首先分析了堤壩管涌發生的過程和影響管涌發生的因素，提出了一種預測判定管涌發生可能性的機理模型，根據機理模型從影響堤壩管涌發生的諸多復雜因素中選出既便於測量、觀測又對管涌發生影響顯著的幾種因素作為人工神經網路的輸入，建立了管涌影響因素與管涌發生指標之間的映射關系。
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