正投影法 的英文怎麼說
中文拼音 [zhēngtóuyǐngfǎ]
正投影法
英文
orthography-
Combined with the reseaching panoramic aerial camera with tdi ccd, the paper deduced the formula of imv with two methods. one is coordinate system transformation method, the other is orthogonal projective analytic method
本文結合在研的tdiccd全景航空相機，用兩種不同的方法實現對像移速度公式的推導：坐標系變換法和正交投影解析法。Sequentially, the author discussed the technologies of medical image 3d visualization according to the clinical applications. with the development of computer, 3d visualization and computer graphics, the 3d visualization of medical images has progressed from fourier transform and convolve inverse projection to mpr ( multi - planar reformation, mpr ) and mtp ( maximum intensity projection, mtp ), nowadays, the real 3d reconstruction method, surface and volume rendering has risen. the image registering, image segmentation, pixel data set construction and 3d special interpolation are the key technologies in medical images 3d reconstruction
隨著計算機技術、三維可視化理論和計算機圖形學的發展，醫學圖像的三維可視化技術也從傅立葉變換、卷積反投影等基本圖像處理演算法，發展到真正的三維重建演算法：面繪制和體繪制；醫學圖像的三維可視化技術的應用也從三維醫學成像發展到虛擬內窺鏡，以及今天的虛擬可視化人體研究；而圖像的配準、圖像分割、體數據集的構建、三維空間插值則是醫學圖像三維可視化實現過程中的關鍵技術環節。Technical drawings - projection methods - orthographic representations
技術圖紙.投影法.正交表示法The results of numerical experiment are reported to show the effectiveness of the proposed algorithms. reduced hessian algorithm has became one of the very popular and most effecive methods for solving nonlinear equality constrained programming. recently, chaya gur - witz proposed the two - piece update of a projected hessian matrix
最近， chayagurwitz在nocedal和overton等人工作的基礎上，提出了兩塊校正的投影hesse矩陣方法，討論了其演算法的局部收斂速率，但未涉及整體收斂性。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。By this means, user can recover the model with arbitrary geometry and topology. during the interaction, the reconstructed results can be computed and displayed instantly because we use an optimization - tree based symbolic and numeric hybrid optimization - solving approach
採用這種方法，系統在接受使用者的交互之後，可以實時地求解幾何參數與照相機投影矩陣，並即時地在一個三維窗口中顯示重建結果，做到真正的所見即所得。Abstract : in this paper a new identification model constructed by neural networks with modified inputs and stable filters is presented for continuous time nonlinear systems in order to reduce the inherent network approximation errors. an adaptive law with projection algorithm is employed to adjust the parameters of networks. under certain conditions, convergence of the identification error is proved
文摘:在用神經網路進行系統建模時，建模誤差的存在是難免的.為了減小這種誤差，本文對連續時間非線性系統提出了一種新的神經網路辨識模型，它是由帶有輸入修正的神經網路和穩定濾波器組合而成.文中給出了權值的學習演算法，即權值是根據辨識誤差的投影演算法來改變，證明了在一定條件下辨識誤差的收斂性By taking advantages of epipolar line features and depth discontinuities in reference 中國科學院 軟件 研究所 博士 學位 論文 基于 圖 象 的 快速 繪制 技術 的 研究 images ， an efficient inverse wmping algorithm is pfoposed in chapter 3 for gcnerating nagcs of novel views by combining multiple eference images 帆 enhm different vie 呷 oints because continuous segnents determi 。 d by pairs ofedge pixels at co 。 spending epipolar lines are order kept ， only pairs of edge pixels in the reference 渝 明 e e necess 叨 口 cowute to obtain generalized disparity of all points in the desired image as a result ， sighficant acceleraion could be made in the endering pfo 比 鴕 two accelerating techiq 此 s e presented in this algori 山 mb accelerate the hole illing process his algorithm extends the reference images rom projection of single col ： ii ’ ected surface in previously developed nvnverse w 出 下 er to ima 驢 s captured rom complex scene in chapter 4 ， an 《 dent ibr method is prese 庇 仙 y takn ull 訕 antage of 呷 bies c 咖 the method can simulate the 3d details on sllri ： ace of object successfully he 。 叩 proach ， called rered ature mopmp consists of two pans at fst ， an origi 。 ltexture with orthogonal displacements per pixel is deco 啊 osed into a series of new t6 刀 mfcs with each 他 lug a given displacement per pixel ， called ae ， ea atures ， or lt hen hese lt e used to render the novel view by conventional texture mapping d avoid gaps n the endered hlla 驢 ， some phels are to be interpolated nd extended in the 廠 kaccoding to the depth differe eee between two neighbor pixels in the original texture as these ltlt fc … e much storage nd therefore much time is equired to install ltlt into the text ’ ufc buffec an 舊 thod is pfoposed to co 呷 fcss the ltlt ， nd the cottcspondingfclldering method is given experimental esults show that the new method is efficient ， especially n rendering those objects with a smaller depth rnge compared withtheir size ， such as relief surfaces of building
與己有的三維變換方法相比較，該方法不但成功地填補了由於投影區域擴張而產生的第一類空洞，而且成功地填補了由於空間深度非連續物體相互遮擋而產生的第二類空洞，從而方便地實現了虛擬環境中的漫遊；基於物體表面深度的連續性，本文提出了一個位移預測方法? ?此方法可以從單幅參考圖象獲得逆映射過程中所需要的目標圖象的位移信息，從而大大提高了演算法的效率：與通常的正向映射演算法相比，此演算法克服了多幅參考圖象所帶來的計算量成倍增長等問題，而且誤差較小。 2 ）基於極線幾何的快速逆映射演算法。利用參考圖象的邊界信息與隱含的遮擋關系，以及極線幾何的性質，本文第三章提出了一個基於極線幾何的快速3 『一中國科學院軟體研究所博士學位論文基於圖象的快速繪制技術的研究逆映射演算法，從多幅參考圖象精確合成當前視點目標圖象。Multi - pose face recognition based on orthogonal views
基於正投影視圖的多姿態人臉識別演算法Technical drawings - projection methods - part 2 : orthographic representations
技術繪圖.投影方法.第2部分:正投影表示法Employing the oblique projection shifting method, we have solved some graphic problem in descriptive geometry. it is very simple and fruitful to deal with difficult problems in orthographic drawing
摘要介紹了投影變換中的斜投射法及其在解決工程圖學一些問題中的應用。用這種方法可解決工程圖學中用正投影方法不便解決的圖示、圖解問題，而且具有應用范圍廣、作圖簡便的優點。The algorithm, basing on convolution filtering technique and the fringes " gray values max - min distribution, can automatically and accurately carry out space frequency spectra shifting without spectra analysis and spectrogram in the technique of phase method of projected grating for 3 - d object shapes measurement. the new algorithm makes image processing much caster and the technique of object shapes measurement more automated. the phase error caused by filtering and the crossed - optical - axes geometry setup is also discussed
本文採用投影光棚相位法和數字卷積濾波技術：根據柵線的條紋灰度值分佈具有極大極小分佈的特性，提出卷積濾波形貌光學自動檢測的圖像處理方法，有效地實現了頻譜自動移位，從而進一步提高了圖像處理的速度和形貌測量技術的自動化程度；同時對採用兩光學主軸相交，且非遠心投影系統所產生的誤差進行了分析，並提出了修正方法。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。In order to analysis the paleo - current effectively on the conglomerate, i proposed a method that can be carried out by orthogonal photo in field and statistic analysis at room. it has been improved to be efficient and veracity, especially for the case that the states of gravels can not be measured directly
為了更有效的分析古流向，對礫巖發育地層，提出了野外正射投影照相?室內統計計算的方法，該方法能提高工作效率及分析準確性，尤其適用於野外不易直接測量產狀的細礫巖層。This software can be used to construct automatically 16 electrodes and 32 electrical electrodes finite element method ( fem ) division model. the equi - potential lines in any drive pattern can be plotted and the boundary potential changes in its forward problem can be obtained. using back projection method, the impedance imaging in simulation and real measurement can be reconstructed
該軟體對任意形狀、結構的場域可實現自動剖分，可建立16電極、 32電極求解模型；正問題部分可給出各種激勵情況下的等位線分佈和邊界電位變化情況；逆問題部分用反投影法實現了圖像重構，並成功應用於所研製的測試系統。Chapter three studies the problem of interferometric phase images filtering and estimation, and details spin filtering with curve windows along the fringe tangent orientation and an estimation method based on the technique of joint space - image subspace projection
第三章研究了干涉相位的濾波和估計問題，重點研究了曲線窗口旋濾波演算法和子空間正交投影法。Technical drawings. projection methods. part 2 : orthographic representations
技術圖紙.投影法.第2部分:正交表示法Iso 5456 - 2 : 199 technical drawings - projection methods - part 2 : orthographic representations iso 5456 - 2 : 1996
技術圖紙.投影法.第2部分:正交表示法This paper is composed of two parts including 5 chapters. in the first part ( including chapter 2 ^ 3 ), this paper explains an improved geometry - model method to eliminating eclipse shadow, using satellite imaging theory and projection theory to convert plane rectangular coordinates into rectangular spherical coordinates. otherwise, through studying eclipse ' s shape and size, this paper uses a math - function - model to eliminating eclipse shadow
本文共有五章，主要內容分為兩部分；第一部分包括第二、三章的內容，利用可見光雲圖成像原理以及點的投影法，將平面雲圖投影到三維直角坐標的球面上，對用於雲圖陰影訂正的原幾何模型法加以改進，得到改進的幾何模型法，並進行日食陰影訂正實驗；本文還利用數學函數模型法，通過研究月球在地球表面投射陰影的形狀及其受影響程度，從另一方面進行可見光雲圖日食陰影的訂正實驗研究。The experimental and computational results agree well with each other. the conclusion is that the proposed method, i. e., to divide a complex - cylinder flow field into basic flow field, and then to solve them respectively and coincide them on the common boundary, is a good way to simulate the whole flow field. further more, to solve basic flow field with the project method and coordinate transformation is suitable
實驗表明：理論計算是可靠和正確的；投影法結合坐標變換法是求解基本動邊界流場的有效方法；基於基本流場的求解，將復雜流場分解為幾個基本流場，分別求解，然後在其共有邊界上將涉及的基本流場耦合迭代，直到物理參數一致，是求解某些復雜動邊界流場的可行方法。分享友人