速矢圖 的英文怎麼說
中文拼音 [sùshǐtú]
速矢圖
英文
hodograph-
The procedure functions in the compare between partial image of dynamic collection and corresponding image of the airscape. in chapter 5, basing on the analysis of correlative theory of digital image, we introduce the improved fasted - down algorithm and simulative anneal algorithm, which applies to nn calculation, an d bring forward the unique and effective means, correlative original value evaluation. basing on the combination of correlative arithmetic, a stable, high - speed and exact correlative arithmetic is formed, which makes it possible to apply computer vision detection of single - needle quilting in industrial production
本文展開研究並取得一定成效：構建了基於pci總線的微機實時圖像採集系統；在採集的布料總圖（鳥瞰圖）的基礎上，通過數字圖像的數字濾波、圖像增強、邊緣檢測等處理，提取布料圖像的邊緣，對輪廓的矢量化的象素點進行搜索，得到相應的圖案矢量圖，從而確定絎縫的加工軌跡，生成加工指令；在進給加工過程中，主計算機對動態局部圖像與總圖（鳥瞰圖）的對應部分進行圖像相關的匹配計算，應用數字圖像理論，結合神經網路計算的改進最速下降法和模擬退火演算法，提出獨特而有效的相關迭代初始值賦值方法，形成穩定、高速和準確的相關運算，實現單針絎縫視覺測量和自動控制。Peak updraft strength is slightly enhanced with hodograph curvature, 29. 0 m / s in b versus 26. 1 in c
山頂上升氣流強度隨速矢端跡曲率加大而稍有加強，在（圖上） b點是每秒29米， c點是每秒26 . 1米。A coding scheme is proposed to eliminate the redundancy of output vectors in pyramidal lattice vector quantization ( plvq ). a fast algorithm of labeling lattice points and a fast algorithm of finding lattice points are presented. and the transmission priority in case of asynchronous transfer mode is suggested
提出了一種與圖象本身無關的熵編碼方法去消除金字塔格型矢量量化（ plvq ）的輸出冗餘：同時也提出了由格點輸出索引和由索引輸出格點的快速演算法；而且還根據異步傳輸模式（ atm ）的特點，選擇了傳輸的優先級。Three kinds of results are obtained by simulation calculating the two models : the composed vector diagrams of the axial velocity ( v ) and the radial velocity ( vr ) at the different times in the symmetry section ; diagrams of curves of the velocity vector ( v ^ ) and ( vr ) at the different times in the different sections ; diagrams of the secondary flow vectors at the different times in the different sections
我們對兩種不同直徑的s型血管進行了有限元模擬計算，得到三種結果：在對稱面內不同時刻的軸向速度v _和徑向速度v _ r的合成矢量；在不同截面不同時刻的速度分量v _和v _ r的曲線圖；在不同截面不同時刻的二次流的矢量圖。Diagrams of velocity vectors and streamlines display waveform and amplitude properties, showing the effect of fibres on enhancing the flow stability. the computational results are tested
Piv測量得到流場速度矢量圖及流線圖，擾動波幅與波形特徵說明， re數一定時流動穩定性隨h值增大而提高。Firstly, based on conventional vq, a fast algorithm named equal - sum block - extending nearest neighbor search ( ebnns ) is presented, which not only can achieve the reconstructed image of full search algorithm but also can greatly reduce both the codeword search ratio and chip area. in order to improve coding efficiency, a new algorithm called correlation - inheritance coding is proposed, which is embedded in conventional vq system to improve compression ratio by re - encoding the indexes
首先，在普通矢量量化基礎上提出了等和值塊擴展最近鄰快速碼字搜索演算法（ ebnns ） ，該演算法在圖像畫質達到窮盡搜索演算法的前提下，大大降低了碼字搜索率和硬體實現面積；為了提高編碼效率，在相關性編碼方面，提出了相關繼承編碼演算法，對普通矢量量化后的編碼索引進行無損重編碼。The total auto symbol recognition disposition method proposed in this paper can deal with the problem which converts papery of aircraft theory graphics or system graphics into vectorgraphs which can lose some useful information. furthermore, the display technique with multi - level buffer not only resolves the problem of high - speed for aircraft theory graphics or system graphics in cbt, but also ensures scrolling and zooming in / out smoothly and avoids the flashing phenomenon efficiently
目前紙質的飛機系統圖、原理圖矢量化方法用基本的矢量圖元按其位置來再現原始圖，從而導致矢量后圖中各符號整體信息丟失問題，該文提出的自動符號識別方法可有效地解決該問題，此外改進多級緩沖顯示技術不但可有效地解決cbt中系統圖、飛機原理圖的快速顯示，而且也保證圖形可連續光滑滾動和消除放縮拖動時屏幕閃爍現象。The article illuminates mainly two segments color - separation model based on three dimensions, gives a model conception on a knowledge base of unification technology and analyse and design digital prepress system from the whole on the problem of systemic requirement analysis. second, the article brings forward new data compress method based on memory stream and sets up new data structure to realize undo and redo methods based on analyzing all kinds of datas referred to on systemic based construction. because printing and dyeing cad system deals with many arithmetics on graphics ans image and production technics, the article illuminates vector conception, expatiates gray graphic vectorization and brings forward to graphic component ' s conception to enhangce the systemic stability and manipulating speed and improve graphic transmission
在印染cad系統的需求分析問題中，結合目前印染行業的發展和實際cad系統的整體構架，著重闡述了基於三維空間的二段法分色模型，提出了一體化工藝知識庫這個模型的概念，對數字印前系統做了整體的分析、設計在系統的底層架構問題上，著重分析了cad系統涉及到的各類數據，提出一種新型的基於內存流的數據壓縮方法，同時設計了自己的數據結構，用以實現系統的undo 、 redo操作，由於整個系統涉及眾多的圖形圖像演算法和實際工藝，為了提高系統的穩定性和操作速度，以及增強圖像的網路傳輸功能，在部分演算法中採用了矢量的概念，著重講解了灰度圖像矢量化，並且提出了圖像組件這一嶄新的概念。First we introduce theory and merits of graphic wavelet transform, then mallat algorithm, multi - scale characteristic, quadratic b - alpine wavelet and the coefficients of this filters, and etc. later we calculate the gradient matrix based on the result of wavelet transform, thin the contour and get spatical information
先介紹圖像小波分解方法的原理、 mallat快速演算法、多尺度特性、 3階b -樣條小波基函數的選取及其濾波器系數的推導等，然後根據小波變換結果計算梯度矢量矩陣，進行非極大值抑制和雙閾值化，提取目標輪廓。Then, in order to reduce the coding time of each image vector, a fast algorithm based on mean - order - search is proposed. the simulation results of this algorithm show that its coding speed is twenty times faster than that of full search algorithm ( fs ), but its reconstructed image is badly ruined
其次，為減少每個矢量的編碼時間，提出一種基於均值排序碼書的快速搜索演算法，測試結果顯示，該演算法編碼速度是窮盡搜索演算法的二十多倍，但是恢復圖像的質量大大地降低了。Thirdly, geometry modeling of the pump was made and meshes were divided with gimbit, then the flow filed was investigated using flunt, a commercial available cfd code. as result, lots of internal flow filed of outlet of the gear pump was obtained, including velocity magnitude and pressure magnitude
應用pro / e和gambit軟體對機油泵進行幾何建模並劃分網格，應用fluent軟體模擬多種工況下機油泵出口部分的三維湍流流動，得到詳盡的三維湍流場的分析結果，包括壓力分布圖、速度矢量分布圖等。The constitutions and principles of position of gps > glonass and beidou navigation system are described all around in this article, and the following technologies are studied and realized : communication between com ports with oop technology, compound navigation with gps and glonass. calculate velocity, pseudorange difference, smoothing pseudorange with the carrier - phase and models to correct error are also done ; the transforms between wgs - 84 and pz - 90, as well as wgs - 84 and beijing54 coordinate system ; the technologies to display and manage bitmap, vector map based on mapx also ; conversion of data formats between gjb and mif data format of maplnfo corp. arithmetic of creation dem data based on contour line data from 1 -. 25000 map data with gjb format. texture the surface of terrains with corrected aviation image
本文全面介紹了gps 、 glonass 、北斗導航系統的組成、定位原理，研究並實現了面向對象的串口通信技術、 gps + glonass組合導航、測速及偽距差分、相位平滑偽距差分以及有關誤差的模型改正、 wgs ? 84和pz ? 90 、 wgs ? 84和北京54坐標系的坐標轉換、柵格地圖的顯示和管理、基於mapx的矢量地圖的顯示和管理、 1 : 25萬軍標數據和mapinfo的mif數據格式雙向轉換、基於軍標數據的dem生成演算法、基於opengl的三維地形構造、航空圖像紋理地形表面、三維坐標量算、虛擬現實模擬導航、三維地形的層次細化演算法以及數字圖像處理中的圖像增強、幾何變換、影像匹配等技術。Chapter five include the content of the software flow chart of with - sensor vector - controlled induction motor driver system, the characteristic of data processing, and a novel debug method with modularization and incremental system build method
第五章給出了帶速度傳感器矢量控制系統軟體實現的流程圖、數據處理的特點和一種新穎的模塊化的編程思路和分級遞增的調試方法。By simulating mathematically on frequency and on space, we can find the average speed of space field and the average speed of frequency field that is weighted by amplitude, and analyse their relation, and analyse the meaning of space speed variance x and frequency speed variance v. in the fourth part, how to ensure the height of cloud is introduced, and basing on the theory of wind field continuity, the height updating quality controlling is introduced. in the fifth part, the system of cloud wind is introduced, we tracked cloud - motion of consecutive satellite images with one - minute interval by the 1 - d fourier analysis technique and the two - dim fourier analysis technique and the fft analysis technique, and dispose them with quality controlling. in the sixth part, we summarized our research and put up with shortages of this article
模擬模塊內各點的速度線性變化時，得到空間域平均速度以及頻率域以振幅為權重的平均速度，分析了空間域平均速度和頻率域以振幅為權重的平均速度的關系，並揭示空間域的平均速度的標準差_ x和頻率域的振幅為權重的平均速度的標準差_ v的意義，以及它們之間的關系；第四章介紹了雲跡風系統的高度指定以及風矢高度的劃分，並根據風場連續性原理，介紹了高度調整法的質量控制；第五章介紹導風系統的流程，選擇了三個時刻的ir雲圖，分別用一維傅立葉相位法、二維傅立葉相位法和快速傅立葉演算法計算一個風場個例，並對所得風場進行質量控制，並給出風場圖；第六章進行研究總結，指出不足和有待于進一步研究之處。The paper, in the way of math morphology, manages to classify the linear elements, the same type but different width in the scanning, and result in the two - valued linear image in the same level. in the fine division of the target image, a way of math morphology based on the double structure of cell stencil is put forward, which prevents the terminals and the acnodes from losing and also reduces effectively time in doing so. as the result of the framework of the fine division, vector method is formed in which its track is monitored by using dynamic change of pace about freeman ' s chain code
本文用數學形態學相關理論方法實現了對掃描圖像中具有同一線型但不同線寬的線狀要素進行分類，在同一層上得到同一線寬的二值線狀要素圖；在對此目標圖像進行細化時，提出了基於雙結構單元模板的數學形態學細化演算法，用該演算法對實際的線狀要素進行細化，避免了端點、孤立點等信息的丟失，且由於是并行處理，有效地提高細化速度；對于細化后的骨架線，提出了基於freeman鏈碼的動態改變步長保持精度跟蹤矢量化方法。Xdesignerlib has many optimize to vector graphics, it can draw fast, avoid mostly flash of screen
Xdesignerlib針對顯示矢量圖形做了多種優化，能快速準確的繪制，並基本上無閃爍。Secondly, the main stuctures of the software and hardware parts of the control system are introduced. principles and realization of the main functional blocks of these two parts are illuminated. on the hardware of the system, parts of control circuit and the design and debugging of peripheral circuits are discussed thoroughly. based on the hardware circuit, the software is programmed with assembly language. dual close loop vector control weth feedback of speed and current are realized. the flow charts of main programme and pwm interrupt service routines are given. the important control strategies of vector control pmsm such as current sensint and scaling, speed sensing and scaling, bector co - ordinate transformation, generation of sine and cosine, pi regulators, svpwm vector modulation and so on are all accomplished in the pwm interrupt sevice routines. in order to unite all the variables in the programme, scaling is used
硬體方面主要論述了控制電路各部分及外圍輔助電路的設計和調試。在硬體的基礎上，軟體採用匯編語言編程，實現了轉速和電流雙閉環矢量控制。給出了系統主程序和pwm下溢中斷處理程序流程圖， pmsm矢量控制的主要控制策略如電流采樣與定標、速度采樣與定標、矢量坐標變換、 sin和cos值生成、 pi調節、 svpwm波形生成等都是在pwm下溢中斷服務子程序中完成的。The common map is scanned into grid map, and then vectored in mapinfo. after vectoring, vector data are matched and the spatial coordinate data of resident points, water system and other data are gained. the coordinate of reference points in the freeway are gathered by gps, then after data processing, coordinate transition, data inputting, it turn into the freeway graph, which composes the freeway electronic map with the materials subsidiary to the freeway
將普通紙質地圖經過掃描生成柵格地圖，然後在mapinfo環境下進行矢量化生成矢量化地圖，經過矢量化數據配準，確定居民點、水系等物系的空間坐標數據；利用gps採集的高速公路控制點坐標，經過數據處理、坐標轉換、錄入，最後生成高速公路圖層，和上述高速公路附屬物共同構成了完整的高速公路電子地圖。Based on the lorentz transformation on especial condition, making use of coordinate transformation and matrix theory, the matrix expression and vector expression of lorentz transformation about two inertial frames that relative speeds orientation is random and isnt follow axes of ordinate are educed. 2figs., 3refs
從特殊情況下的洛侖茲變換出發，利用坐標變換和矩陣理論，導出了兩個慣性系的相對運動速度取向任意，且不沿任一坐標軸洛侖茲變換的矢量表達式和矩陣表達式.圖2 ，參5The system uses the arrowhead to express the speed vector of wind field and uses the contour line and color cloud to express the height of wave field
風場風速矢量場採用方向箭頭實現可視化，並且可同步顯示氣壓場信息，海浪場可視化採用等高線、彩色雲圖、文本數值輸出，也可實現風場同步。分享友人