normal vector 中文意思是什麼
normal vector
解釋
法向量-
Pcc takes the normal vector of a hyperplane as the projecting direction, onto which the algebraic sum of all samples " projections is maximized, such that samples in one class can be separated well from the other by this hyperplane
主分量分類器是在兩類樣本投影代數和最大的前提下，獲得最佳投影方向（分類面法方向） ，實現樣本分類。它的不足之處在於： 1 -
Applications of plan normal vector in solid geometry
平面法向量在立幾計算中的應用 -
Solving problems in solid geometry by normal vector of plane
用平面法向量解立體幾何題 -
In chapter 3, 1 consider the nonlinear parabolic equation : where a bounded domain with smooth boundary in ; v is outward normal vector on is a positive function satisfying some compatibility conditions focus my attention on the case of m > 1, to obtain the blow - up conditions of the positive solution using the method of subsolution and supersolution
運用緊致性原理及moser迭代得到了解的整體存在性和解的熄滅性質。第三章討論了如下形式的非線性拋物方程：其中m ， ， 0 ， r ~ + ，為r ~ n （ n 1 ）中的有界域，具有適當光滑的邊界（ ? ） ； v是（ -
A separated - parameter method is proposed to calibrate the structure parameter. a vanishing line method is proposed to calibrate the normal vector of light plane and invariability of cross - ratio is proposed to calibrate the baseline length
並提出一種參數分離的方法對傳感器進行了標定，採用消隱線法標定激光平面的法矢量，利用交比不變原理標定激光平面的基線長度。 -
By means of the transformation from the focal coordinate system to the observation system, we obtained the external normal vector of the focal fault plane expressed in its observation system, and obtained the macrodamage degree of the researched block, which is calculated in dyadic
由震源坐標系表示的震源斷層面換算到觀測坐標系得到其外法向矢量，可求得研究地塊以地震裂紋密度張量計算的宏觀損傷度的變化。 -
Vertex format includes a vertex normal vector
頂點格式包括頂點法線向量。 -
The main work completed in the paper is listed as following : 1. image function acquisition -, 2. read bmp files by dib format ; 3. drawing gray scale histogram ; 4. choose a optimum threshold and make gray image become binary image -, s. find image ' s contour points by making inner points become empty and apply template matching on the contour points ; 6. transform the object ' s beginning points ( pixel point ) to the ones in the image coordinate and the positions of in the corresponding three dimensions ; 7. compute the position vector and the normal vector of the object
選擇一個最佳闋值，把灰度圖像進行二值化處理； 5用掏空內部點法，找到圖像的輪廓點，然後在輪廓點上進行模板匹配； 6把輸出的目標物開始點（像素點）轉化成圖像坐標系中的點和對應的三維空間的坐標位置； 7計算目標物的位置矢量和法向矢量，根據機器人抓取面的法向矢量，找到機器人要抓取的平面； 8 -
Then i consider a correlative problem : where m, > 0, s is a bounded domain with smooth boundary in ; v is outward normal vector on ; f ( s ) is continuous function and satisfies some increasing conditions ; u0 ( x ) is a positive function satisfying some compatibility conditions, to obtain the blow - up conditions of the positive solution using the method of subsolution and supersolution, extend the result of song and zheng
）上的單位外法向； u _ 0 （ x ）是正的函數且滿足一定的相容性條件：討論m 1的情況時，在何種條件下使得問題的正解整體存在或是在有限時刻爆破。主要採用上下解的方法來得到結論。隨后考慮相關問題：其中m ， 0 ，為r ~ n （ n 1 ）中的有界域，具有適當光滑的邊界（ -
The solutions include : the unit normal vector of the elastic - plastic boundary near the crack line, the elastic - plastic stress fields near crack line, law that the length of the plastic zone along the crack line is varied with an external loads, the maximum lengths of the plastic zone, the bearing capacity of a finite plate with an eccentric crack loaded by shear forces
這個解包括：裂紋線附近彈塑性邊界上的單位法向矢量，裂紋線附近的彈塑性解析解、最大塑性區長度、裂紋線上的塑性區長度隨荷載的變化規律及其承載力。 -
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。 -
In order to get the better effect of showing organ surface, it also gives a new method to compute the normal vector at grid vertex for the drawing part of the system
在系統繪制部分，為了獲得更光滑的器官表面顯示效果，給出了網格頂點法向量計算的新方法。 -
Using local base surface parameterization, a parametric quadric surface approximation method is used to estimate the local surface curvature properties of scattered points based on propagating normal vector direction
首先，計算各點的鄰近點集，選取合適的局部基礎曲面，把鄰近點集投影到相應的局部基礎曲面。 -
First, the normal vector of the surface was calculated using the differential geometry based on the features of an involute and a cycloid as a reference of radius of the ball milling cutter
由於銑刀每完成一個行程后，還要進行輪廓插補，採用一種新的漸開線輪廓插補方法，並將插補軌跡換算成球頭銑刀的刀心軌跡。 -
Computation of surface normal vector in virtual endoscope system
虛擬內窺鏡系統中表面法向量的計算 -
The plane normal vector and usages
平面的法向量及其應用 -
The reflection vector is computed from the input vertex position and normal vector
反射向量是從輸入頂點位置和法線向量計算出來的。 -
Pca model was set up based on the normal history data of the system to detect the sensor faults by comparing the projection on the residual subspace to which the real measurement vector and normal vector were projected
主成分分析法根據系統正常的歷史數據建立數理統計模型，通過傳感器實際測量數據與正常數據在故障子空間投影的比較，對傳感器的故障進行在線檢測。 -
In the second part, we investigate the compact submanifolds m with the parallel isoperimetric section in the real space forms rm ( c ) and prove that if there exists a parallel isoperimetric section on m, and the sectional curvature of m is always greater than zero, then m is contained in a hyper - sphere ; and get that the gauss curvature of the compact surfaces m with constant mean curvature in constant curvature space r4 ( c ) is always greater than zero, then m is a totally geodesic surface or a sphere, where an isoperimetric on m means a unit normal vector field defined globally on m with m1 ( ) = constant
（ 2 ）研究了實空間形式r ~ m （ c ）中具有平行等參截面的緊致子流形m ，證明了具有一平行等參截面的子流形m ，如果m的截面曲率恆正，則m包含在r ~ m （ c ）的一個超球面內；對于常曲率空間及r ~ 4 （ c ）中具有常平均曲率的緊致曲面m ，如果m的高斯曲率處處大於零，則m或為r ~ m （ c ）中的全測地曲面或為一球面。這里m上的等參截面是m上整體定義的單位法向量場，使得m關於它的平均曲率m _ 1 （ ）是常數。 -
This algorithm has higher efficient than the method which uses tool path envelope intersection with normal vector of surface of geometry model and has higher verification precise than the method that uses tool path envelope intersection with z direction vectors
其運行效率高於用幾何模型法向量與刀具掃掠體求交的方法，驗證精度大於用z坐標方向矢量與刀具掃掠體求交的演算法。
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