inverse surface 中文意思是什麼
inverse surface
解釋
反曲面-
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。 -
As we know, inverse techniques make blade ' s profile well compatible with its surface velocity distribution, however, they give designers big challenges that the ideal velocity distribution is hard to obtained and sometimes the non - physical solution, such as double covering of flow field or unclosed profiles, would come out. the proposed design procedure in the paper has avoided the disadvantage mentioned above. in this paper, a quasi - irrotational equation is used to describe the flow in cascade instead of the generally used irrotational equation
眾所周知，一般的反問題和混合問題的最大特點，是在給定的壓力面和吸力面上的壓力分佈或速度分佈條件下，直接得到葉片的幾何形狀，它可以使葉型型面與表面氣流參數有機結起來；其不足之處在於，對設計者而言，很難給定理想的葉片表面壓力分佈或速度分佈，並且有時會得到一個非物理解，如：得出的初始葉型可能會出現前緣、尾緣不封閉的現象。 -
As a result, in the paper, considering the altitudinal effect ( topography factor ) and the influence on the temperature lapse rate by topography and latitude and longitude and moisture transfer, the study on the daily surface air mean, max and min temperature in the reaches of yangtze rive is attempted by five models, which include the gaussian weighted model, the gaussian weighted model associated with the error - modification, the gradient plus inverse distance squared model and the modified gaussian weighted model a and b that take topography - factor into account
本文考慮海拔高度和溫度直減率受地形和經、緯度及水汽等因素的影響，通過利用高斯權重法、結合逐步訂正的高斯權重法、梯度距離權重反比法和加入地形影響項（地形因子）的兩種改進高斯權重法的方案a 、 b ，對長江流域的地面日平均、最高和最低氣溫場進行了空間化插值研究。 -
Since there exists ill - posedness in reconstructing velocity on the surface and reconstructing pressures in the field, this paper attempts to introduce an iterative regularization method to resolve such inverse problems
由輻射聲壓重構結構表面振動速度和聲場聲壓存在解的離散病態問題，試圖利用一種迭代正則化方法來解決此類逆問題。 -
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。 -
Furthermore, how to get the surface heat flux of the billet by its surface temperature and initial temperature is a typical inverse heat conduction problem ( ihcp ) in the mathematical sense
在數學意義上，就是一個利用偏微分方程的初始條件和一個邊界條件來求得另一個邊界條件的問題，這又恰恰就是一個典型的逆熱傳導問題（ ihcp ） 。 -
On the long working step, internal force of beam - on - foundation can be calculated as inverse continuous beam on cutting slope surface operated by slope pressure with linear distribution
在工作階段，可直接按倒扣于坡面上的連續梁來計算地梁內力。 -
By use of the 3 - d display tool, we can combinate the different results of forward modeling and inverse ( mainly include surface data, vsp data and snapshot record ), and display them in different direction, then we can compare them very efficiently
有了三維顯示工具，聲波與彈性波正反演的各類數據結果（主要包括地面數據、 vsp數據與時間快照）就能夠在三維框架上進行方便的組合顯示，這樣就能有效方便的查看和比較結果。 -
In the thesis, the design method of the diagonal flow fan impeller has detailedly researched different from the previous means borrowing and extending design methods for axial flow or centrifugal type, a complete design method has presented on the basis of quasi - three dimensional design idea. the course is mainly composed of such steps as meridional surface design, inverse problem computation in meridional surface, blade shaping on stream surface, and verifying through three dimensional computation, until the design requirement is met at last
不同於以往的軸流式或離心式延長設計方法或經驗方法，本文按照準三元設計的思路給出了一套完整的設計方法，即子午面設計?子午面反問題計算?斜流流面上葉片造型?三維計算驗證優化，直至符合設計目標。 -
Modified surface spreading four - node element in one - step inverse forming simulation and its application in automobile front fender
局部減縮積分曲面展開單元在某汽車翼子板一步成形模擬中的應用 -
Method of inverse displacement analysis for hybrid twe pmts is a1so given. an analytical method, which is based on surface analysis, for workspace - analysis of 6 - sps type pmts is proposed in this dissertation. topological diagram of workspace for 6 - sps type pmts is derived, the equations of workspace boundny surfaces for 6 - sps type pmts are also derived based on the kinematic characteristic of the pmts
提出了一種求解6 - sps型並聯機床主進給機構工作空間的解析方法，該方法以曲面分析為基礎，通過分析得到了6 - sps型並聯機床主進給機構工作空間四川大學博士學位論文的拓撲邏輯結構圖，結合主進給機構的運動特性，得到了主進給機構工作空間邊界曲面的曲面方程。 -
Investigation of the surface property of copolyester and miscibility of its blends by inverse gas chromatography
反氣相色譜法研究共聚酯的表面性質及共混體系的相容性 -
In this thesis, a internal and external analyse and research about design, modeling and machining of ball - end cutters is reviewed. on the base of grinding trait of mk6335a five - axis numerical control drill grinder, in the present study, differential geometry, ruled surface concept, envelope and inverse - envelope theory, coodinate transfer and numeric analyse are used to develop a mathmatical model and systematic method for the design, analyse and simulation of ball - end cutters
本論文在國內外關于球頭立銑刀設計、建模、加工等方面研究的基礎上，根據現有的mk6335a五軸數控鉆尖磨床刃磨運動的特點，應用微分幾何、包絡與反包絡理論、坐標轉換、數值分析等理論知識，研究了基於五軸數控磨床加工球頭立銑刀的數學模型及分析與模擬。 -
By solving an inverse heat conduction problem, one method is given about to compute wall thickness of cylinder - shaped equipment based on the outer surface tempereture
摘要利用紅外測溫技術，結合導熱反問題求解，給出了一種根據圓筒外壁溫度計算筒壁厚的方法。 -
We have proved that the surface energy induced by the flexoelectric effect has the same form but inverse sign at the up or down substrate. the expressions of the threshold voltage and the saturated voltage which have correlation with e1 + e3 ( the flexoelectric coefficients )
給出了閾值電壓和飽和電壓的表達式，它們都與e _ 1 + e _ 3 （撓曲電系數）有關，即撓曲電效應將導致閾值電壓和飽和電壓的變化。 -
We generated its grid surface on the fuselage or missile body according to the geometry projection relation between aerodynamic components and the bilinear interpolation approach. finally, we successfully developed a new algebra grid generation technique in virtue of the improved four - boundary interpolation. in this thesis, we put emphasis on the researches of aerodynamic inverse design and drag reduction questions for airfoil and wing using euler equations and control theory proposed by jameson
（ 2 ）進行了應用控制理論和二維歐拉方程的翼型氣動反設計，以及有升力約束情形下翼型跨音速減阻問題研究，分別推導了相應的共軛方程及邊界條件的數學形式，並給出了相應的梯度求解公式形式，研究發展了共軛方程及梯度的數值求解方法，成功進行了多個翼型的反設計和減阻問題研究。 -
It can be used not only to infer position of the magnetic body relative to the drill hole but also to make quantitative - semi - quantitative calculation and inverse interpretation and calculation of the distance and depth from head or tail of ore bodies to the known drill hole at surface by rotating an angle so as to design drilling depth, dip angle and orientation of the next drill hole
其作用不僅可以判斷磁性體相對于鉆孔的位置，而且可以進行定量和半定量計算，以及經旋轉一角度採用地面方法作反演解釋，計算礦體頭部或尾部距已知鉆孔的距離、深度，設計下一鉆孔的深度、頂角、方位角。 -
The paper proposed the methods of multi - azimuth inverse vsp tomography to calculate near - surface velocity aimed replacing micro - log method at complex surface places
本文首先就復雜地表常規微測井技術求取表層速度存在的問題，提出了多方位角逆vsp層析成像方法。 -
The convergence for this method is proved and applied to solve inverse problem of fractal rough surface
最後將這一演算法運用於分形粗糙面的反演問題中，得到了很好的反演效果。 -
Since the target surface is one big, very complex projector you should treat every face on it as if it where an inverse uv projector, sucking up the image instead of projecting it
（因為目標表面是一個大的，非常復雜的放射體，你需要處理它上面的每一個面，例如在那些uv投影反轉的地方，會使圖像凹進去而不是凸起來。
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