first projection 中文意思是什麼

first projection 解釋
第一次投影
  • first : adj 1 最初的，最早的。2 最上等的，第一流的。3 基本的，概要的。4 高音（調）的。n 1 最初，第一；第...
  • projection : n 1 射出，投擲，發射，噴射。2 投射；投影，投影法；（地圖）投影圖製法；【電影】放映。3 凸出；凸出...
  1. Projection algorithm is presented as follows : first, characterize the reference image and the float image and turn into binary images ; then, project the binary images onto the abscissa and y - axis and get the projection vectors ; last, according to the elements of the vectors, the rotation and translation parameters were calculated separately

    投影法通過二值化參考圖象和浮動圖象，沿x軸、 y軸投影得到投影向量，然後根據投影向量元素的大小和位置，分別檢測圖象間旋轉、平移運動的大小。
  2. Applying the information extracted from numerous hydrographic data of field trials collected by h / hcs - 017, the first set of multi - beam swath bathymeter developed in china, a series of mosaic techniques have been carefully studied in this thesis, including digital terrain model building, statistical error analyzing, hydrographic data mosaicking as well as tides correction and projection of the earth coordinates. finally, standard digital sea - charts and three dimensional seafloor images are successfully developed that are consistent with hydrographic surveying principles

    本文利用我國第一臺h hcs ? 017型條帶測深儀的測量數據進行拼圖技術的研究，主要研究的內容有：利用分帶原理對深度數據進行潮汐修正，得到瞬時海面的深度數據；對測深數據進行誤差分析處理，去除野值；將多波束數據進行坐標變換及投影轉換后構建數字地理模型，進而根據海道測量規范繪制標準海圖。
  3. Position of condyle projection in first wearing patients of non - teeth complete denture

    無牙頜患者初戴全口義齒時髁突位置的探討
  4. The difficulties lie hi that there is any disturbance of yawp, character conglutination, and character rupture etc. the paper first presents some methods that adopt prior knowledge of the license plate, perpendicular projection, and minimum character area and so on

    車牌圖像的單字元分割即把車牌的整體區域分割成單字元的區域，以便后續進行識別，車牌字元分割的難點在於噪聲和字元粘連、斷裂對分割的影響。
  5. First, this dissertation gives a geometrical projection - based 3d warp algorithm, which has proved the feasibility to bring the studying method of ibr into geometry models - based modeling and rendering. it is an all - purpose algorithm, which can perform coordinate warping under different projection for scene and object models, and, this algorithm can perform color warping according to lighting characteristics

    演算法的提出證明了將圖像繪制的研究方法引入幾何繪制領域的可行性，演算法通用性好，對場景模型與對象模型均能夠依據不同的投影關系進行圖像的坐標變換，同時，演算法還能夠依據光照特性對象素點顏色值進行變換。
  6. First calculation method : doing horizontal projection drawing on drawing piece, k value is introduced by area equation of projection drawing, k value is obtained by area equation, along outline of projection drawing to add k value, that is, outline shape of blank drawing, principle area - equal and shape similar are used. second calculation method : along outline of drawing piece horizontal projection drawing, to do normal line of penetration line for wantonly point of this point, to obtain high of drawing piece on this point normal line, point and point is to form outline shape of blank

    計算方法之一為k值法：作拉深件水平投影圖，在該投影圖面積方程中引入k值，利用面積相等原理解方程，求得k值，沿水平投影外沿加上k值，即為毛坯圖的外廓形狀。計算方法之二為拉深線法：沿拉深件水平投影圖外廓，在任意點作該點切線的法線，在該法線上以該點拉深件的高度為量，在法線上取截點。
  7. In china, the first - angle projection is adopted preferencially following related national standards

    國家標準規定，我國優先採用第一角畫法繪制機件的圖樣。
  8. From the practical view, this paper summarizes the theory of orthogonal projection based on the first - angle projection, the ways of manual reading drawings and discusses the problems relevant. the mechanism similar with csg is used to reconstruct 3d object with priority to csg and aid by b - rep

    本文從實用的角度出發，總結了正投影工程圖中的投影理論基礎、人工讀圖方法以及注意的相關問題，採用了以csg方法為主， b ? rep方法為輔，類似於csg建模的機制來實現二維視圖的三維重建過程。
  9. Collects the fine conference interior facility to be complete, has the small conference and the multi - purpose assembly halls, the multi - purpose assembly halls may continue 150 human of medium conferences and conduct the large - scale activity, provides the specialized sound, the ultra big background projection, is holds the banquet and the conference place of first choice

    匯嘉會議內部設施齊全，有小型會議及多功能會議廳，多功能會議廳可承接150人的中型會議和舉辦大型活動，配備專業音響，超大背景投影，是舉辦宴會和會議的首選之地。
  10. Based on the analysis of the digital image print head, we first discuss the key technique of the lcos projection display, including the cell characteristic and optical projection system characteristic, then the application of lcos for the digital image print head, its hardware system. this wins initial success for the color correction and system software of our digital image print head

    論文在分析國內外數碼電子片夾的基礎上（第一章） ，首先論述了lcos投影系統的關鍵技術，著重分析了lcos投影儀中液晶盒特性以及投影系統光學特性，然後在此基礎上結合實際情況就現階段lcos用於數碼照片擴印系統的基本結構進行一些具體分析，並重點設計與分析了金成lcos數碼電子片夾的系統結構以及各個組成部分，為後面lcos數碼擴印系統的顏色校正以及數碼照片擴印系統軟體的研究提供了一定的基礎（第二章） 。
  11. Since we defined the frustum, we know the angle at which the sides of the frustum meet - this is the field of view we used to create the projection matrix in the first place

    確定好錐截體，我們就知道錐截體頂角的大小?這是我們在第一個地方用來創建投影矩陣的視場。
  12. Schools equipped with the first projection system

    教署向學校提供投影系統
  13. The coordinate systems and time systems are described in detail at first, then the paper presents the whole algorithm containing line of sight generation and projection attitude data combination scan mirror calibration, find corresponding grid cell, resample. at the same time, scan gaps and detector delays are analyzed in detail

    論文首先對校正過程中用到的時間系統和坐標系統作了介紹，然後給出了完整的校正演算法，包括視線產生和投影、姿態合成、掃描鏡校正、尋找校正圖像空間像素到未校正圖像空間的對應像素位置、重采樣這幾個部分，並在相鄰掃描行間隙的插值上採用了簡潔的方法。
  14. First angle projection

    第一角投影法
  15. In this paper, the method vision - based for uav autonomous landing is researched using technology of image processing, computer vision and projection geometry. the first task of computer vision - based uav autonomous landing is to recognize and track the runway using computer vision. a simple method is discussed to recognize and track the runway in the image sequences using template matching

    本文的研究工作來源於「 973 -無人作戰飛機系統」項目，以某型無人機試飛過程中拍攝的著陸場景圖像為基本研究材料，綜合利用了圖像處理技術、計算機視覺技術、射影幾何學等方法研究了跑道識別與跟蹤、進場著陸段的圖像處理、無人機著陸段飛行參數提取等相關問題。
  16. The direct analysis method has more efficient than the line programming for the shakedown analysis of contact surface layer, therefore, the mentality of shakedown analysis of contact surface layer was introduced based on the direct analysis method as follows : first, the direct method for shakedown analysis was presented and its application to a two - dimensional rolling / sliding contact problem was demonstrated. the direct method consists of operator split technique, which transforms the elastic - plastic problem into a purely elastic problem and a residual problem with prescribed eigenstrains, and an incremental projection method to determine the eigenstrain

    這些方法各有創新，其特點是計算速度快、收斂性好及精度可靠，計算規模避免了彈塑性隨動強化分析的非線性的影響，並使彈塑性問題轉化為殘余問題和線彈性問題，適用於滾動、滾滑及滑動接觸失效分析，從而有效地解決了接觸體安定性分析與裂紋萌生壽命預測的實際問題，也是本文對表面強化接觸失效的安定分析成為可能。
  17. Engineering drawing has always been labeled as a practical subject. a combination of geometrical, building. mechanical and electrical drawing, it relates between theory and the picture of reality. engineering drawing will provide an accurate and complete ptcture for every object tn terms of shapes and sizes. usually, it is taught using the face - to - face teaching mode even in an odl environment. due to its nature, some students may find difficulty in imagining and interpreting the drawings. however, the availability of sophisticated technology provides the opportunity for the learning of engineering drawing to be enhanced via online. a web - based system for teaching and learning engineering drawing was developed based on a constructivism model. the web - based system is tailored for several topics of engineering drawing such as orthographic projection, sectional view, isometric and oblique drawing at the secondary level. the learning strategy consists of multiple phases beginning with introduction, concept learning, engineering drawing method, application and exercises. during introduction, students will be exposed to an overview of the topic followed by learning of specific concepts. the system provides a learning environment that allows engineering students to view objects from different angles, such as third angle projection and first angle projection as well as views of plans, side and front elevations. after learning about the concepts, students wilt be guided through the various steps in drawing methods for each topic via animations and simulations. learners are able to view any section repeatedly. examples of real application of engineering drawings were also given using graphic, animations and video. to evaluate students understanding, exercises were given at the end of each session

    工程制圖一直被認為是一門實踐性學科，其整合了幾何學、建築、力學、電子制圖等，從而將理論與現實圖像聯系起來，工程制圖能為每個不同形狀、尺寸的物體提供精確的、完整的圖像.通常，即使在開放與遠程教育環境中，工程制圖的教學也是通過面對面的教學模式來進行的.由於其特殊性，一些學習者可能難以想象並解釋這些圖像.然而，尖端的技術使得可以通過在線的方式加強工程制圖的學習.研究者基於建構主義模式開發了一個面向工程制圖教學和學習的網路系統.該系統適用於幾種工程制圖，例如展開圖、刻面圖、等角圖和斜角圖.學習過程包括導論、概念學習、工程制圖方法，以及應用與練習等階段.在導論階段，系統為學習者提供了專題簡介，然後是概念學習階段.系統所提供的學習環境允許工程專業的學生從三維透視、一維透視、平面圖、側立面、正立面等不同角度來觀察物體.經過概念學習階段后，系統將引導學生通過動畫和模擬學習每個專題中制圖方法的不同步驟，學習者也能重復觀察任何剖面.另外，還通過圖像、動畫和視頻等方式展示真實的工程制圖應用案例.最後，為了評價學生的理解能力，在每部分內容後面都附有相關的練習
  18. Experiment data is analyzed with method of projection pursuit for more reliability and utility value. this paper first systematically studied energy dissipater of suspension girder in steep gradient with supercritical flow according to used in actual engineering and received perfect effect. experimental studies about the distribution velocity, the variation of water surface and pressure are undertaken

    然而，文章主要針對已獲國家自然科學基金資助，且已在實際工程實踐中產生了良好消能效果的陡坡急流懸柵消能工的部分試驗成果，進行了較全面深入地討論，即具體根據試驗資料系統分析了懸柵陡槽內泄水時的流速分佈、底板壓力分佈及水面線變化情況。
  19. Located on the first floor of the middle building, the international conference hall, equipped with world - class facilities such as 8 channel simultaneous interpretation systems, broad band network and communication systems, video teleconferencing systems, projection display systems, is the top choice for holding conferences and press conferences for increasing international activities

    國際會議廳位於中樓一層，設有8路同聲翻譯系統、電視電話會議系統、寬帶通訊網路系統、放映系統和大屏幕投影系統等設施，達到國際先進水平，為日益增多的國際間交流提供了一個高規格的平臺。
  20. First, method for initialization of wavelet basis in wavelet frames is proposed ; second, according to the data distribution, a modified method for rough selection of wavelet basis is given ; and the last, an adaptive projection algorithm combined with aic criterion is used to purify the wavelet basis, meanwhile finishing the parameters identification

    首先在小波框架內提出一種小波基初始化方法；然後根據樣本的分佈特點，提出一種改進的小波基粗選方法；最後將自適應投影演算法與aic準則相結合，對小波基進行精選，同時完成網路參數的辨識。
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