edge tracing 中文意思是什麼
edge tracing
解釋
邊緣跟蹤-
We select a common feature in the image - edge of the object as our research content and from this point we spread our work including the contrast enhancing technologies, using mathematical morphology to restrain noises in image, extracting of the geometric primitives, dwt in edge detection and the border thinning and tracing technologies
我們重點針對圖像物體的最直觀特徵?邊緣進行研究，以此為出發點，研究了包括水下圖像對比度增強，利用同態學進行水下圖像噪聲去除，直線和橢圓基元的提取，利用小波變換進行邊緣提取以及基於多邊形近似原則的邊緣追蹤技術在內的各種演算法。 -
Incremental length diffraction coefficients ( ildc ) is adopted to calculate the contribution of edge diffraction. in order to improve the accuracy of calculation, multi - scattering is discussed, based on the two former contributions and ray - tracing method. geometrical optics ( go ) and physical optics ( po ) are used to calculate the multi - reflection between facets and facets
對于鏡面反射採用物理光學法計算其散射貢獻，結合基於面元的目標模型的表示，採用離散的積分形式，將面電流積分化簡為線積分，簡化計算復雜度；對于邊緣繞射，運用增量長度繞射系數理論計算目標邊緣繞射場；在多次反射中，則以光線跟蹤方法為基礎，採用幾何光學、物理光學相結合的方法分析考慮多次散射場。 -
In this paper, i will present some algorithms of polyhedral visual hull reconstruction : ( 1 ) polyhedral v isual h ull generation a igorithm b ased one dge - pool - searching, which constrains the 3 - d intersections into the 2 - d planes intersection via the epipolar theory to reduce the complexity a nd c an r educe t he t imes f or c ones t o b e p rejected o nto t he i mage p lanes, i n which we induced the index list to every points on the surface of object, and connected the related points to get sub polygons on surface and in turn get the mesh model, we replace triangulation process of disordered points cloud by edge - pool searching. ; ( 2 ) reconstruction based on degenerated - polygon - intersection, which have the following improvements on traditional bull intersection : using degenerated polygon to orga nize intersected area on cone face, which may be discontinuous ; a fast intersection algorithm of polygons on the cone face based on degenerated polygons, which is consistent between the continuous polygons and the discontinuous ones. the intersection of degenerated polygons is similar to the convergence of two ordered lists, which is comparably simple to the bull operation ; ( 3 ) reconstruction algorithm based on ray - tracing, in which all the rays that run through the vertex on silhouette of object will intersect with all the cones correspondent to other silhouette, and we have to calculate the intersection of all such line segments, the endpoints of which are considered to lie on the surface of object and we will get the point cloud on the surface of object
同時利用共極線原理把三維計算投影到二維平面以降低求交計算的復雜度，該演算法可以減少光錐向圖像平面投影計算的次數，以邊池搜索取代散亂點集上進行的三角剖分； （ 2 ）基於退化多邊形求交的多面體可見殼模型重構，系統引入退化多邊形的概念，把錐體平面的交集中不連通的部分用一個退化多邊形來表示，並引入了新的基於退化多邊形的求交演算法，與傳統多面體可見殼重構相比，該演算法有以下幾點創新：在圖像平面以退化多邊形組織投影錐體和物體輪廓的交集，把任意錐面與物體輪廓的交集歸一到一個退化多邊形；基於退化多邊形的二維平面上多邊形快速相交演算法，該演算法在一定程度上就是兩個有序鏈表的合併，大大簡化了先前的布爾求交計算； （ 3 ）基於光線跟蹤的演算法，該演算法中所有通過輪廓頂點的光線和對應其它圖像輪廓的光錐進行求交計算，最後得到每次求交計算得到線段的交集，該線段的頂點就認為是物體表面點，從而得到物體表面的點雲。 -
Secondly, for the image edge detection, methods including the gradient method, the sharp - processing method, and the hough transformation were used, and the contour tracing was also conducted
邊緣檢測處理部分採用了梯度處理法、銳化處理法、哈夫變換處理法，並對圖像作輪廓跟蹤處理。 -
Contraposed those characteristics of leather, after studying all kinds of algorithms of image segmentation, this dissertation chooses the techniques of thresholding methods of parallel region segmentation and edge tracing methods of serial edge segmentation to detect the contour of the leather image. then by using polygonal approximation method, we can convert the contour ' s form from image into graphics. it will make following arrangement works more convenient
本論文針對皮革圖象的上述特點，在對各種圖象分割演算法進行研究后，選用了并行區域分割中的閾值化技術及串列邊界分割中的輪廓跟蹤技術，將皮革圖象的邊緣輪廓檢測出來，並對該輪廓進行多邊形擬合，使其由圖象轉換為圖形，以便為后續排樣工作提供方便。 -
The new ideas of this dissertation mainly lie in two points. based on the research on the traditional edge tracing techniques, this dissertation presents an improved method according to lml rule. at the same time, studying the polygonal approximation methods, this dissertation also presents an improved and based on mergence method to image contour, and implements the transform of the contour from image to graphics preferably
本文的主要創新點在於：在研究傳統輪廓跟蹤技術? ? 「爬蟲」法的基礎上，提出了基於lml規則的改進的輪廓跟蹤方法；同時，研究了多邊形擬合法，提出了基於聚合的改進的多邊形擬合物體圖象輪廓線方法，較好地實現了對邊緣輪廓線的從圖象到圖形的轉換。 -
( 7 ) traditional region labeling was not considered because it wastes time and scan frequently the image. but fast edge tracing was improved to trace several edges each time. chain code of the edge was used to calculate perimeter and object area
（ 7 ）針對區域標記存在速度慢、重復掃描圖像等不足，改進了輪廓跟蹤演算法，使區域標記與輪廓跟蹤有機地結合在一起，提高了處理速度，同時改進了面積計算方法，避免了篩選和排序。 -
First, the authors uses regional growing algorithm based on seeds point selected by manual work to ascertain the main area awaits to be segmented, then taking advantage of the precision of the edge tracing method to precisely define the boundary and thus to attain the precise segmentation
先用人工選取種子點的區域增長演算法確定待分割組織的主體區域，再利用邊緣跟蹤法對細節處理較好的特點精確定位邊界，從而達到準確分割的目的。 -
Segmentation of chromosome : the chromosome image is segmented by the method of boundary gray level threshold and entropy algorithm based on genetic algorithm, then, after boundary smoothing and edge tracing, the chromosome position information is acquired. 2. diagnostic extraction of chromosome : on the basis of skeleton pixel after thinning, the medial axes are obtained by the orthogonal approximation
主要研究內容如下: 1 、染色體圖像分割:採用基於邊界灰度的門限演算法和基於遺傳演算法的熵演算法來尋找染色體圖像二值化需要的分割閾值，對分割后的圖像存在的噪聲分別採用內插來置換和邊界跟蹤來消除; 2 、染色體特徵提取:採用細化技術將染色體細化一些離散的骨架點，用插值方法獲得平滑的曲線染色體中線。 -
Firstly in the stage of image segmentation, on the basis of comparing three edge detector in common use, we propose a new method of edge detection, which is combining robert detector and contour tracing
首先，我們對飛機圖像進行了分割。在比較三種常用的邊緣檢測運算元的基礎上，提出了一種新的邊緣檢測的方法，即將robert運算元和邊界跟蹤結合起來的方法。
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