正投影面 的英文怎麼說
中文拼音 [zhēngtóuyǐngmiàn]
正投影面
英文
frontal plane of projection-
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。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。According to the theory of scalar diffraction, first, the equipollence of spatial distribution of the plane - wave interferential field and parallel projective sine grating is discussed
摘要根據標量衍射理論，首先討論了兩平面波干涉場的空間分佈與平行投影正弦光柵的等價性。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。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） 。In order to represent the six direction shape of the part, according to the national standards, the principle views are the projective views of basic projective planes, putting the part into the three - dimensional box, which six planes as the basic projective planes
為了表達機件上下、左右、前後的形狀，制圖標準中規定，以正六面體的六個面作為基本投影面，將機件置於正六面體內，分別向各個基本投影面投射所得的圖形稱為基本視圖。Multimedia systems and equipment - colour measurement and management - part 6 : front projection displays
多媒體系統和設備.色彩測量和管理.第6部分:正面投影顯示器Due to its high outputting luminance, large screen and the high quality of the projective image, the projection display for large screen has been used in many fields, such as official business work, conferences, etc. liquid crystal projection display, for example, one of the most important micro - display techniques, has shown the tendency for substituting the crt projection display in the conventional video display field
大屏幕投影顯示以它的高亮度、大面積、高質量的顯示圖像，已逐步成為現代顯示技術的主流，廣泛應用於辦公、會議、家庭影院等領域。以液晶投影顯示技術為例，目前這項技術以及得到了廣泛應用，而且正在逐步取代傳統的crt顯示技術。In this paper, we study and analysis the base distribution in human dna sequences. on the basis of the distribution sphere whose radius equal to 1 / 4 by zhang et al. expounded, with the method of plane mapping figure studying 6000 human dna sequences, and according to the figure of sierpinski gasket ' s patch and the brillouin zones of the face - centered cube, we obtain two new distribution figures, one is the frustum - octahedron, another is the regular - octahedron
我們在zhangetal .提出的人類dna序列的堿基分佈為半徑是1 / 4球分佈的基礎上，用平面投影圖的方法研究和分析了6000組人類dna序列的數據，並且根據塞爾賓斯基鋪墊的補形和面心立方的布里淵區圖形提出了兩種新的分布圖，一種是正八面體，另一種是截角八面體（十四面體） 。The paper introduces the arithmetic idea for the quick rectification of facade texture of buildings based on the parallels existed in buildings and the theory of perspective projection, and analyses the factors affected the geometrical quality of the images
摘要介紹了基於建築物上平行線和透視投影理論進行建築立面紋理快速糾正的演算法思想，分析了影響圖像幾何質量的因素。The sinusoidal gray fringes are simulated by computer and projected on the object by the liquid - crystal light valve in this method, in with the phase - shifting is controlled by computer. then the deformed fringes modulated by object is collected by ccd camera, so optical 3 - d phase measurement for large - scale object can be realized
（ b ）針對目前大尺寸物體光學位相測量輪廓中存在的問題，提出一種用液晶光閥把模擬正弦分佈及多幅有一定相移量的灰度條紋投影到大尺寸三維物體上，通過控制計算機在同一位置進行窗口變換，直接實現相移，進行物體的光學位相三維面形測量。It is introduced the representations of straight lines in two - dimensional plane and three - dimensional space, line drawing labeling, the theory and methods of computer interpretation of line drawings based on the relative position relationships of the vertices and the planes on a planar object
在已有基於點與平面的相對位置關系解釋線框圖研究成果的基礎上，提出一種計算機遞歸解釋線框圖的方法，主要針對的是正軸測投影線框圖的計算機解釋。Accordingly, the origin of geometric distortion is first introduced in this paper, and through analysis, a geometric correction algorithm is presented. applying the transformation of three - dimension - projection, image series are finally converted into the same coordinate system
論文首先介紹了圖像幾何畸變的產生，並通過分析得到幾何畸變的校正演算法，通過三維投影變換把系列航空圖像變換為同一坐標系（地面坐標系）下的幾何畸變校正圖像。Finally, a new 3d surface ranging method based on a digital fringe projection and shifting technique is systematically studied and non - linear rectification algorithms which reduce measurement error is proposed. at the same time, the noise - immune phase unwrapping algorithm is deeply studied and a new algorithm for phase unwrapping of phase map is proposed. experiment make known the algorithm can reduce measurement error, bypass the noise points automatically, solve the problem of the shade sheltering or cavity, overcome the error propagation problem and better results have been obtained
論文最後系統研究了基於數字相移條紋投影曲面三維測量方法，創造性地提出了一種減小測量誤差的非線性校正演算法，取得了預期的效果；同時對相位去包裹演算法進行了較深入研究，提出了一種噪聲圖像相位去包裹方法；實驗表明該方法能減小非線性測量誤差，自動避開噪聲點和間斷點，獲得了滿意的結果。By using matrix theory and the theory of finite fields, we study the applications of projection matrix, permutation matrix, difference matrix, hadamard product, the generalized hadarnard product, kronecker product, kronecker sum and the generalized kronecker sum to construction of orthogonal arrays
本文利用矩陣理論和有限域理論，研究了投影矩陣、置換矩陣、差集矩陣、 hadamard積、廣義的hadamard積、 kronecker積， kronecker和、廣義的kronecker和在構造正交表方面的應用。In chapter 3 we analyze a useful statistical method - projection pursuit ( pp ), including its basic theory and application. we put out definitions of projection index and projection pursuit, then prove that pca is a special case of pp with sample variance as projection index and list some indices often used. in section 3. 3 we apply pp with information divergence index to hyperspectral image, and demonstrate the advanced ability of it by the comparison between it and pca
第三章圍繞一種新興的統計降維方法? ?投影尋蹤展開討論，概述投影尋蹤的一般理論，定義了投影指標和投影尋蹤的概念，證明了傳統的主成分分析方法是投影尋蹤的一個特例，證明了正態性與friedman指標為0的等價性；第三節針對高光譜圖像處理問題，從實例和理論兩個方面，論證了以信息散度為指標的投影尋蹤方法在提取信息的能力上優于以方差大小作為衡量信息量多少標準的主成分分析方法。A software to process modis data is made in vc + + 6. 0 development environment based on the hdf4 library and the general cartographic transformation package ( gctp ). from which users can extract earth view data of different band or resolution and other ancillary data according to users " demand. it supports most current projection types and can transform projection coordinates forwardly or inversely and can calculate ndvi and evi
利用vc + + 6 . 0面向對象開發環境，以hdf4庫和gctp投影軟體包為基礎，編寫了modis數據處理軟體，可根據用戶需要提取不同波段和解析度的對地觀測數據以及各種輔助數據，支持目前通用的大部分投影方式，可對投影坐標做正向和逆向變換，能計算ndvi和evi數值等等。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 eyes can be considered as a salient and relatively stable feature of faces, so firstly eyes - analogue regions in cluttered images are segmented using local adaptive threshold edge detector. then the small eye - analogue regions are grouped together and labeled using a traditional labeling process according to their geometrical and color features. instead of finding potential eye - pairs from eye - analogue regions one by one, all possible pairs of eyes are encode as the solution, and the potential face are searched by gas
新意之處：利用膚色是一種感知現象的特性以及神經網路的強大感知、學習功能，採用進化神經網路對膚色進行感知和分類；以眼睛的幾何和周邊的膚色特徵分割眼睛塊，克服了在完整的膚色區域內檢測人臉方法的局限性；對候選眼睛對的編號而不是人臉在圖像中的位置、人臉的尺度和方向進行編碼，使遺傳演算法用於人臉定位時的問題空間得以大大簡化，採用一個新穎的眼睛及臉頰部位的灰度投影及膚色模板驗證，可以實現多尺度、任意方向的正面人臉檢測，實驗結果令人滿意。The projection display based on lcos technology caters for the requirements of large - area image and high resolution, and grows up with vigor currently
基於lcos技術的投影顯示更是大畫面和高清晰度顯示的傑出代表，並正以迅猛速度增長。分享友人