section contour 中文意思是什麼
section contour
解釋
剖面外形-
The thorough research is more concentrated on elastic registration. the 3 - d contour reconstruction, point reconstruction, the arbitrary section plane display, and the autometic segmentation of some organs are also deeply studied
首先，全面、深入研究了彈性配準問題，然後研究了三維輪廓顯示和點顯示問題，也研究了剖面顯示方法。 -
This process is as follows : firstly, the data of different section contour and of section line have been obtained by reverse - engineering ; secondly, non - uniform b - spline approximation algorithm is used to fit the discrete data ; then the data have been optimized and reduced by adopting adaptive sampling of key points of the fitted curve based on vertical distance, sequently the adaptive sampling data is transformed into the format of the. ibl file of the famous 3 - d design software pro / e. therefore we reconstruct the surface and a model is generated ; lastly, the effectiveness of the adopted algorithm and modeling approach are demonstrated by the experiments
建模型的過程中，首先運用逆向工程測量方法，獲得曲面物體上不同截面輪廓線的測量數據點列，接著對測量數據點進行平滑處理，用最小二乘法求解基於數據點列的控制多邊形，以非均勻三次b樣條曲線擬合截面輪廓曲線；然後利用基於垂距的數據采樣演算法，對擬合曲線上的數據點進行重新采樣，達到優化數據點的分佈及減少描述曲線數據量的目的。 -
Secondly, the triangle meshing of contour loops that includes triangle plane filling between layers and section triangle plotting was accomplished
其次，邊界輪廓環的三角網格化:層間三角面片填充和端面三角劃分。 -
In triangle plane filling between layers, the loop matching operator between layers was adopted, which is that the loops were matched according to their characters, geometry centers and perimeters. four kinds of regular algorithm in filling between layers were analyzed, and the shortest diagonal algorithm, which was rather fit to this dissertation, was adopted in this dissertation. the contour loops of section were grouped and each loop was split to make each loop become a single outer loop that was triangle split with delaunay algorithm
在層間三角面片填充方面，採用層間輪廓環按環的性質、幾何中心和周長進行匹配的層間匹配演算法;分析了層間三角面片填充的四種常用的演算法，並根據本文需要選用並實現了最小對角線法;端面三角劃分時，將端面的輪廓環進行分組，再對每組環進行切分處理，使得每組環變成一個單一的外環，對單一的外環按delaunay演算法進行三角劃分;將所生成的三角面片按規定的格式寫入stl文件，生成可直接為快速原型製造所接受的stl文件格式。 -
Meanwhile, in 3d - scene, some functions of spatial analysis and interactive operations have been realized. and, a testing application system of 3dcm is developed, which includes tin model construction, the creation of contour, spatial coordinate query, section - cutting, measuring distance and area, 3d visualization and operation about topography and building etc. the purpose of developing testing system is to demonstrate the correctness of 3dcm based on the visualization. finally, the result of the testing and 3dgis research direction is put forward to investigate generally
另外，在三維模型的可視化場景中，實現了一些3dgis的交互操作和空間分析功能，結合論文的目標，開發了一個實驗系統，對三維城市的建模方法進行了論證，實現了dem模型的快速構建及等高線的追蹤和地圖分幅，實現了三維城市模型的可視化，在可視化的基礎上實現了部分空間交互操作和空間分析，如：空間坐標查詢、斷面切割、距離和面積量算、建築物屬性查詢、三維動態漫遊等。 -
Larger rolling velocity gives better materials filling in the ring section contour
同時發現，軋制速率影響環件軋制的成形性能，較大的軋制速率有利於環件輪廓填充。 -
The software can show the surface and section ' s graph of contour and color contour, the static and dynamic graph of displacement, and so on
本文開發的軟體能夠實現葉片表面及截面的等值線圖和雲圖的繪制、靜態變形和動畫等功能。 -
The selection of the internal contour of the vehicular tunnel is determined by architectural limits. the program computes the most optimum cross - section of all kinds of different driveways and different cross - section forms
公路隧道內輪廓確定，通過確定建築限界，由程序計算出不同車道，不同斷面類型的最優斷面形式。 -
In tracking section, we still adopt the snake to converge on the object contour by improving the energy functions, in the tracking frame, initial points are acquired by calculating the average inter - frame motion vector of the block, because all snaxels have approximately the same motion vector as the moving object is proposed to be rigid and have no salient deformation
跟蹤部分：根據剛體運動的特點（運動區域具有一致性和不發生較大的形變）求出運動目標的平均位移矢量，與在分割部分求出的目標的輪廓點的位置相加，作為下一幀跟蹤的初始輪廓點，結合改進的snake能量函數使其更精確地收斂到運動目標輪廓上，達到準確跟蹤的效果。 -
The paper analyzed the struture of the tri - eccentric butterfly vavle at length, defined the tri - eccentric butterfly valve, educed the geometry function and its characteristic about the section of the butterfly disc. the results indicate : the parallel contour line across butterfly disc thickness is normal ellipse, thereby eslablished function relations between its geometry parameters ( long axis and short axis ) of three primary sections of the butterfly disc and the tri - eccentricity ; in order to avoid interference between the butterfly disc and the valve seat as well as the valve body, combining the torque, we obtained the feasible range about the rotation center of the tri - eccentric butterfly vavle
本文主要分析了三偏心蝶閥的結構，給出了三偏心的定義，推導出了蝶板截面的幾何方程及其性質，結果表明，沿蝶板厚度的平行截面輪廓線為標準的橢圓形，進而推導出了蝶板幾個主要截面的幾何參數（長軸、短軸）與三個偏心之間的函數關系；考慮到蝶板啟閉過程中避免與閥體及閥座發生干涉，結合蝶板的啟閉扭矩，確立了三偏心蝶閥回轉中心的適宜區域。 -
Following are detailed steps of this system : in the segmentation section, we use three successive frames to detect the motion infomation of the pictures, by using blockmatching algorithm in two successive frames twice, we can get two pictures composed of motion blocks of the moving object, then we find out the common motion blocks of the two pictures, experiments prove these blocks approximately compose the moving object. after getting the motion blocks, we calculate the center of these blocks as the center of the moving object, thus we can use the center point as the origin, construct n straight linesjoining the boundry of the image and the center. on each line, we can find out a proper point near the object contour according to some criteria, then we use these n points as the initial points of the snake and let the snake converge on the object contour, thus finish the segmentation of the moving object
本方案的實現過程為：分割部分：對運動目標的前後三幀進行兩次塊匹配運動檢測，通過找出兩個匹配結果中運動圖像塊的公共部分，獲得組成運動目標的圖像塊；求出運動目標圖像塊的形心作為運動目標的中心，以此中心為端點，向四周發散出角度間隔為的n條射線，射線的另一端終止於圖像的邊緣；在每條射線上按照一定的準則（點的梯度和與目標中心的距離在一定閾值范圍內）找出n個初始輪廓點；以這些初始輪廓點作為主動輪廓模型（ snake ）的初始點，用改進的貪婪演算法使snake收斂到待分割的運動目標輪廓上。 -
Through carrying out analysis on the aesthetics shape elements of 37 kinds of sample book, 12 shape elements for describing the contour features of industrial sewing machine, such as the elements of ratio between fuselage length and fuselage height and of shape of central part main shaft section etc. were defined
通過對37種樣本的美學形態要素進行分析，定義了描述工業縫紉機外形特徵的12個形態要素，如機身長與機身高比率、中部主軸截面等形態要素。 -
According to the rheological properties of melted abs filament during extrusion from fdm ' s nozzle, on the basis of research on extruded filament section shape, the compensation model of ideal contour line is established, and a new technique for compensating inner or outer contour line of workpiece is put forward, which should depend on the real width of extruded filament ( instead of nozzle radius ) and the real dimensional shrinkage of workpiece
根據abs絲從噴頭擠出過程中的流變性能，在研究fdm工藝噴頭擠出絲截面形狀的基礎上，建立了理想輪廓線的補償模型，並提出了根據擠出絲實際寬度（而非噴嘴孔直徑）和零件尺寸實際收縮量補償零件內、外輪廓的新方法，驗證試驗結果表明該補償模型和補償方法正確可行。
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