geometric features 中文意思是什麼
geometric features
解釋
幾何特徵-
2 ) the structure elements should be laid out symmetrically and uniformly when designing steeve - arch structure, what ' s more, the reasonable selection of section geometric size near the arch foots of first beams is paid attention to and the arrangement difficulties of steel bar due to the big eccentric pressures 2, the analyses of anti - seismic features on transverse direction of the aqueduct l ) the method of adjusting the elements " mass can be harnessed in order to even the layout of seismic loads
2 ）設計吊桿式拱架支承結構時，各部分構件應當均勻對稱布置。另外，還應注意頭道梁拱腳附近截面的尺寸擬定，克服地震內力造成的大偏心受壓狀態給結構配筋設計增加的困難。 2 、橫槽向抗震性能分析1 ）可利用調整構件質量的方法，使得結構的某些構件的地震荷載分佈均勻一些。 -
Concrete algorithm is firstly recognizing 2d feature obtained from geometric entities, then on the instruction of the shape analysis combining with the projective rulers of mechanical drawing, matching three 2d view features, creating 3d basic model, forming a operation list, finically finished 3d reconstruction
在重建演算法上，利用提取的幾何實體進行二維視圖特徵的識別，在形體分析法的指導下，結合制圖中的投影原則匹配三維基本形體，最後按照基本體素的運算序列經過復雜的布爾運算完成重建。 -
This authentic rainbow of soles in leather and synthetic materials also features floral and geometric prints with great visual appeal and are supplied by this company
真正稱得上色彩豐富的真皮、合成材料中底，它們有的還帶花卉圖案，或幾何裝飾圖案，外觀非常吸引。 -
In position - based control, features are extracted from image and used in conjunction with a geometric model of the target and the know camera model to estimate the pose of the target with respect to the camera. the primary disadvantage of position - based control is that it is often highly calibration dependent
基於位置的控制方式根據已知的目標幾何模型和攝像機模型來估計目標相對于攝像機的位姿，其主要缺陷在於控制精度依賴于攝像機的標定精度，而標定精度又受環境的制約。 -
Based on the geometric features of reservoir, structure and the spatial variation of bore - seepage, this paper carries out the following six aspects : accurate division of exploitation units ; description of continuity of genetic unit ; division of internal structure unit of sand - body ; investigation of flow unit of reservoir ; research of outside - delimited reservoir ; geologic modeling
旨在對其做一個階段性的小結，從儲集層砂體幾何形態、內部結構以及孔、滲空間變化特徵出發，概述了精細地質研究的內容為細化開發單元、成因單元砂體的連續性和連通性描述、砂體內部建築結構單元的劃分、流動單元的研究、表外儲層研究、地質建模等。 -
At present the fractal based applications in image domain are approximately classified into two categories : according to the characteristic of self - similar of fractal, people imitate and compress the natural image using mapping transformation method. this is one category. the other is according to the features of fractal and fractal dimension, people set up image models, investigate the main geometric features of the images and process them effectively
目前分形在圖像中的應用大致可以概括為兩類：一類是利用分形的自相似特性，採用映射變換的方法對自然界景物進行模擬，對圖像進行壓縮編碼；另一類是根據分形及分數維的特徵參量來建立模型，通過對模型參數的研究，有效地進行圖像分析和處理。 -
In this dissertatio n, product elements pattern class and geometric feature class are defined, and a product domain knowledge base is built, including product elements pattern rules database, geometric features database, and product template for elements mapping. based on the pattern matching and constraint adding mechanism, the sketch is interpreted and regularized
構建了產品領域知識庫，包括產品元素模式規則庫、產品元素幾何特徵庫和產品模板映射器，定義了產品元素模式類和幾何特徵類，通過一會模式匹配機制和約束施加機制，實現對草圖元素設計層的解釋和規整。 -
Investigation using remote sensing ( rs ) technology can breakthrough the limits of traditional methods, make full use of its capability of integration, visualization, rapidity and vast - dimensions analysis, and get better results the paper takes the up - to - date landsat - 7 etm + data, which is the most widely used, and quickbird data, which has the highest resolution nowadays, and according the features of the data and landslides, processes the quickbird data with 1 : 10 000 dem orthophoto correction and the landsat - 7 etm + data as follows : ( 1 ) selecting optimal spectrum band : selects 753 bands as the optimal bands ; ( 2 ) image intensifying : selects the principle components processing method on the basis of comparing several image intensifying methods ; ( 3 ) rigour geometric direction : corrects the geometric distortion of the map ; ( 4 ) image fusion : mainly takes his space transform fusion and resolution fusion method, and acquires maps with higher spectrum resolution as well as space resolution. after that, the visual effect of the image has been enhanced, and the interpretation precision
採用遙感技術，可以突破傳統調查方法的限制，發揮其宏觀、綜合、直觀、快速的特點，取得更好的效果。論文選取目前應用最廣的陸地衛星最新系列landsat - 7etm +數據和空間解析度最高的商業衛星quickbird數據作為主要的數據源，根據數據的特點及滑坡災害應用特徵，對quickbird遙感數據則基於1 ： 10000dem進行了正射校正，對etm +遙感數據進行了波段優選，選取了753作為最佳組合波段；圖像增強，通過各種增強處理方法的效果對比，選擇主成分分析法對圖像進行增強；幾何精校正，糾正圖像的幾何變形；影像融合，主要選取了效果較好的his空間變換融合和解析度融合，得到的圖像既具有較高的光譜解析度，同時也具有較高的空間解析度。經過上述數字處理，較好地改善了圖像的視覺效果，提高了圖像解譯的精度。 -
Abstract : the effects of dimension, symmetry and tangling or nesting features on assemblability are discussed, and the recognition methods from cad model of these geometric features are given
文摘:闡述了零件的外形尺寸、對稱性以及嵌套和纏繞性等幾何特徵對零件可裝配性的影響，並探討了這些特徵的自動識別方法。 -
In this paper, based on the matching among the parameterized contour feature, a 3d lunar surface reconstruction method is proposed. the reconstruction method is a stereo vision - based modeling method, in which the contour feature of the characterized object is extracted from the lunar surface stereo - images, and the objects ’ geometric information is inferred according to the correspondence between the parameterized contour features, therefore, the digital lunar map is constructed
本文提出了一個基於參數化輪廓結構特徵匹配的月面三維重建方法，該方法基於計算機視覺技術，從月面立體圖像中提取特徵物的輪廓特徵，通過參數化輪廓特徵匹配恢復特徵物的三維信息，從而建立三維月面地圖。 -
The paper proposes conception of information models and parameterization models which are composed of characterization matrixes of 6 - surfaces of manifold block of hydraulic systems, derives checking and calculating conditions of holes opening or breaking on the basis of geometric features of manifold blocks
摘要提出了由集成塊6個表面的描述矩陣組成的信息化模型和參數化模型的概念，基於集成塊的幾何特點導出了孔道通斷檢驗計算條件。 -
Chapter three studies basic knowledge about reset option, including types, structures and features of reset option. chapter four firstly introduces risk - neutral pricing theory, and on the basis of single - point reset option, designs a two - points reset option, at the same time under condition that the price of stock follows geometric brown motion in risk - neutral condition : ds ( t ) = s ( t ) [ ( r ( t )
第四章首先介紹了風險中性定價原理，然後在單點重設型期權的基礎上設計了一種兩點重設型期權，同時考慮股票價格在風險中性下遵循以下幾何布朗運動: ds （ t ） = s （ t ） [ （ r （ t ） -
Shape features include many global shape features, such as invariance moments, geometric shape features and projection statistical features, and many local shape features, such as the ratio of antenna length and body length and antenna statistical projection feature
形狀特徵包括不變矩、幾何形狀特徵和投影量統計特徵等全局形狀特徵，以及觸角與軀體長度之比、觸角統計投影特徵等局部形狀特徵 -
The light spot image thresholding part of the suite puts forward the iterative algorithm to gain the best threshold by comparing, which could perfectly hold the original image feature. in the extracting the light spot image features part, the algorithms on calculating the coordinates of the " energy distribution barycenter " in the 256 gray levels image and the " geometric - center " in the binary image are adopted respectively and so on
如在對光斑圖像進行二值化的過程中，通過比較發現使用迭代法求出最佳閾值的演算法能夠較好的保留原圖像的特徵。在對光斑圖像進行特徵提取的過程中，分別採用了對256級灰度的光斑圖像求其「能量分佈的重心」坐標；對光斑的二值化圖像求其「形心」坐標等演算法。 -
Using the different gradients of the plate area and the non - plate areas in a car image, a neural network is trained. then the image is classified with the trained network. finally, with the help of the projection features and the geometric features of car license plate, the license plate is located
該演算法利用牌照區和非牌照區不同的梯度特徵對神經網路進行訓練，之後用訓練好的神經網路對圖像進行分類，最後結合牌照的投影特徵和幾何特徵實現牌照的定位。 -
This algorithm is based on the texture feature of the characters on a license plate. firstly, the long horizontal lines with small change in gray level in a car image are removed. secondly, small areas are got rid of, then an analysis of the geometric features of the connected areas and the number of inner pixels and pixels on its edge is made, and with the help of the geometric features and the projected features of car license plate, the license plate area is found out
提出了一種基於字元紋理特徵的汽車牌照自動定位演算法；該演算法結合牌照區字元的紋理特徵，首先將汽車圖像中灰度值變化平緩的長水平線去掉，之後將小的區域去除，然後對留下的連通區域的幾何特性、內部象素個數、邊緣象素個數等信息進行分析，結合牌照的幾何特徵和投影特徵，找出真正的牌照區域。 -
In chapter 3, by identifying of geometric features of all basic entities, the shaping information of all basic entities of a part is recognized, and the carrier information for constructing dimension model is extracted. according to interrelations of all basic entities, and connections between shaping dimensions and topological structures of basic entities, a new method is presented to identify disappearing dimensions caused by interacting features. at the same time, a new strategy to create locating constraint dimensions and convert locating constraint dimensions to locating dimensions is introduced
在第三章中，通過基元體的幾何特徵識別出零件體中各個基元體的幾何形狀，並提取生成尺寸模型所需的載體信息；根據定形尺寸同基元體拓撲結構之間的聯系和各基元體之間的相互關系，提出了由相交特徵引起的消失尺寸的確定方法；介紹了基元體之間定位約束尺寸的生成方法，以及山定位約束尺寸轉化成定位尺寸的調整策略。 -
The model made rough classification to the human ears first according to their geometric features, then ica was used to extract the algebra features and support vector machine ( svm ) was for detailed classification, finally the results were achieved, which was in accordance with human natural recognition process
該模型首先根據人耳的幾何特徵對人耳進行粗分類；然後應用獨立分量分析的方法提取代數特徵，支持向量機進行細分類，最後給出分類結果。 -
Guide to assessment of position, size and departure from nominal form of geometric features
幾何特徵的位置尺寸和公稱形式偏差評估指南 -
Because every point on the surface of a sphere has the same geometric features, if there are no clear textures, we can not use feature matching to realize sphere orientation
由於球面上的每一點都具有相同的幾何特性，那麼如果球的表面沒有明顯的紋理，就無法利用特徵匹配來實現球的定位。
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