vector visualization 中文意思是什麼

vector visualization 解釋
矢量清晰成像
  • vector : n 1 【數學】向量，矢量，動徑。2 【航空】飛機航線；航向指示。3 【天文學】幅，矢徑。4 【生物學】帶...
  • visualization : x線造影
  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. Line integral convolution ( lic ) is one of texture - based methods for vector field visualization. even in the vector direction changing sharply fields, the method can show the direction of the vector field well, and display details of the vector field better. in addition, it can fully disclose the relativity among every spot of the vector field

    線積分卷積（ lineintegralconvolution ， lic ）方法是一種基於紋理生成技術的矢量場可視化映射方法，線積分卷積法能連續反映場中各點切矢，即使在矢量方向變化很大的區域，也能揭示出矢量的方向，可以較好地表達出矢量場的細節。
  3. The main task of this paper concentrates on such parts as calibration of measurement sensor, high speed and accuracy image collection and processing, data fusion of different angle of view, visualization of measuring results. to accomplish sensor calibration, a pinhole model of the camera is employed and an equation of a light plane is setup. parameters such as the m array of the pinhole model and the normal vector of the light plane arc acquired through experiment. in image processing, we adopt the template - changing parallel thinning method to improve processing speed and accuracy

    主要研究了攝像機針孔模型的建立及測量傳感器的標定；圖像的快速高精度的採集和處理，在圖像處理中採用多幀平均演算法，很好地解決了速度和精度之間的矛盾制約；根據旋動理論建立空間坐標變換數學模型，進而建立其不同視角下的測量數據融合演算法，生成完整的物體三維數據集合；在vc平臺下編寫三維顯示軟體模塊，完成三維測量結果的可視化，實現了三維物體的任意角度的觀察、任意倍數的放大和縮小、任意方向平移及動畫效果。
  4. Establishing 3 - d terrain models with vector contour lines and elevation terrain models with the help of the determination of space corresponding relations between contour lines, tile operation and branch operation. explanation of real - time reflection of terrain models, including three algorithms in lod technology, compared with quadtree algorithm, roam algorithm and the algorithm based on the intermediate belt, to show the advantages and disadvantages of the different situations of the terrains, so as to find out the right algorithm, the quadtree algorithm. developing and implementing the fast demonstration on the vc platform with three - dimentional visualization techniques, such as vrml and opengl, providing a persuasive argument for the research

    論文首先概括介紹了用等高線快速建立3d地面模型和顯示的相關技術，並論述了課題研究的背景和選題依據;其次，論文闡述了如何對等高線數據進行預處理，提出了有效的得到矢量化等高線的方法;再次用矢量化的等高線數據建立三維地面模型，通過等高線間的對應關系的確定、瓦片操作、分支操作建立地面的高程模型;然後論文對地面模型的實時渲染問題進行了深入闡述，主要是從lod技術的三種演算法著手進行研究，通過對比四叉樹演算法、 roam演算法和基於過渡帶演算法對不同種情況的地面數據顯示的優缺點，再結合本系統的地形數據的特點選擇了適合的演算法:四叉樹演算法;最後，用vrml和基於opengl的三維可視化技術在vc平臺上開發並實現了地形的三維快速顯示系統，為論文的研究內容提供了有力的論證。
  5. Firstly this paper ananlyzed the way and problem of digital city in 3d visualization. then generalizing the development in 3d cis. especially in 3d spatial data model. based on the existing 3d data model, digital city is composed of piont, wire, surface > soild, we can use 3d vector data model in building 3d city model. on the other hand the paper emphasizes 3d reconstruction and 3d interactive of city building model

    本文首先分析了數字城市三維可視化所面臨的問題和發展現狀，總結了當前3dgis ，特別是3d空間數據模型的特點和功能，在此基礎上，把數字城市中幾何目標分類為：點、線、面、體四種類別，採用了三維矢量數據模型建立三維城市模型，而且本文著重探討了城市建築物的三維重建以及三維交互。
  6. Research about visualization of hybrid multi - resolution terrain and vector data

    混合多解析度地形與空間矢量數據的可視化研究
  7. 5 ) this thesis introduces the process of error within the dataflow model and analyzes the error in the particle tracing algorithms for vector field visualization

    5 ）在可視化數據流模型中引入誤差處理，對3d流場的數值粒子跟蹤計算進行了誤差分析。
  8. Vector field visualization based on texture synthesis

    基於紋理合成的向量場可視化
  9. Visual methods can help people to understand complex structures of vector fields. combined with real application background, the algorithms and system for representing complex and large vector fields are presents in this thesis. 1 ) a new texture - based 2d vector field visualization method is proposed : streamline texture synthesis ( sts )

    本文緊密結合實際應用問題，針對大規模數據、互連網等帶來的挑戰，進行了矢量場可視化演算法研究與系統設計，主要工作和創新如下： 1 ）提出了流線紋理合成（ sts ）新演算法。
  10. Because the earth is a non - outspread sphere, plane vector visualization will induce some errors. we analyze its problems, and propose a vector display method based on cartography and in the sphere coordinate system, evolve the formula. we make experiments and prove the formula is right, new method can get better vector display

    本文對直接表示方法存在的問題進行了討論，提出了一種新的基於地圖投影的向量可視化方法，並給出了球坐標系下的向量可視化方法，推導出坐標和向量的變換公式。
  11. Algorithm of terrain visualization by using scanning terrain map as texture ; 2. the simplified algorithm of view - point related multi - resolution terrain and the extended algorithm while its data are distributed like a band ; 3. the visual application of spatial query technique in the field of vector elements overlapping and the simulative evolution of flood

    在諸多技術中，結合防汛決策支持系統對可視化的具體要求，本文重點論述了：以掃描地形圖為紋理的地形可視化演算法；基於幾何模型的視點相關多解析度地形簡化演算法及其在數據呈帶狀分佈情況下的擴展演算法；空間查詢技術在矢量要素疊加和洪水模擬演進方面的可視化應用。
  12. In this paper, the concepts, the historical background, the importance and current application of scientific computing and visualization of scientific computing are introduced and the visualization of computational detonation mechanics is specially expounded. based on the sumarization of the visualization software visc2d and visc3d directing at the mmic ( multi _ material in cell ), the key point of the improvement and the research contents are listed. based on the basic visualization reference model and the data file format of mmic, the file format of vector data is defined. the 2 - d data field visualization technology is described in detail. include the visualization of scalar field and vector field. the weak points of the visc2d software is overcome, and we propose the full - frame coloring mapping method and the visualization of the vector data using the clic ( coloring _ noise line integral convolution ). in addition, the method to draw and display shock wave by edge probing operator is introduced. in the design of the program, in order to overcome the shortcoming of visc2d with sdi ( single document interface ), the software vsv ( visualization of scalar and vector ) with mdi ( multi document interface ) is designed. compared with visc2d, the advantage of vsv includes : ( l ) vsv is a mdi applied software which can be used to view various kind of data, ( 2 ) vsv resolves the flash during displaying moving images which are produed by full - frame coloring method used to the visualization of scalar fields, and ( 3 ) vsv can be used to visualize vector field such as velocity. at last, the visualization of the output data from mmic in explosion and shock is realized by vsv

    首先簡要介紹了科學計算與科學計算可視化的概念、歷史背景、意義及應用現狀，重點說明了計算爆炸力學中的可視化問題，在總結多流體網格程序mmic的可視化軟體visc2d和visc3d的基礎上提出了改進要點和本文的研究內容。在介紹可視化基本參考模型和mmic程序的數據文件結構的基礎上，給出了矢量數據文件的結構，詳細闡述了二維數據場的可視化技術，包括標量場和矢量場的可視化，針對原visc2d軟體的不足，給出了改進方法，提出了全幀著色映射方法和用於矢量數據可視化的基於噪聲著色的線積分卷積方法，以及提出了利用邊緣檢測運算元提取和顯示沖擊波的方法。在程序設計上，針對原visc2d軟體只適用於單文檔窗口的缺點，本文利用多文檔mdi窗口，研製了標量場與矢量場的可視化軟體vsv （ visualizationofscalarandvector ） 。
  13. The visualization of vector fields has consistently been a challenging issue in the visualization field. it can directly display the motion of the vector field by graphics and image and availably penetrate the intrinsic essence and variational law of the vector field. the visualization of vector field has been widely applied in many fields as compute hydrodynamics, aviation kinetics, atmosphere physics, weather analysis and so on

    矢量場可視化是科學計算可視化中最具挑戰性的研究課題之一，它以直觀的圖形圖像顯示場的運動，透過抽象數據有效洞察其內涵本質和變化規律，廣泛應用於計算流體力學、航空動力學、大氣物理和氣象分析等領域。
  14. For visualization geometrical data generated in numerical simulations, two subdivision methods are used and described in full detail. the two methods, which are triangular subdivision and quadrilateral subdivision, are incorporated into the visualization system with vtk for surface and volume rendering. the system supports a wide variety of visualization algorithms including scalar, vector, tensor, texture, and volumetric methods ; and advanced modeling techniques such as implicit modeling, polygon reduction, mesh smoothing, cutting, and contouring

    針對數值計算時被計算的幾何外形，即三維空間離散的數據所確定的幾何外形需要顯示出來特性，本文詳細介紹了兩種常用的剖分技術，即三角形剖分和四邊形剖分原理、方法；將現有的、特定的可視化演算法和技術與vtk類庫充分結合，設計了能讀取、存貯三角形或四邊形剖分的數據組織以及實現其幾何體繪制的類庫。
  15. Then a dynamic visualization software - - afterdraw, which aims at 2d elastic - plastic fem, is programmed. afterdraw is capable of drawing the deformation figures of material, the regions of plasticity and the regions of tension distributing figures, primary stress vector figures and primary strain vector figures. besides, atterdraw could realistically dynamically simulate the deformation of the whole process of construction

    在此基礎上，研究了針對二維彈塑性有限元的動態可視化后處理軟體afterdraw ， afterdraw能夠繪制基坑工程各步施工的結構變形圖、塑性區和受拉破壞區分布圖、主應力矢量圖和位移矢量圖， afterdraw還能夠逼真地動念模擬基坑工程整個施工過程變形情況。
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