spline surface 中文意思是什麼
spline surface
解釋
樣條曲面-
Auto - adapted fitting algorithm of b - spline surface objects
樣條曲面自適應擬合演算法 -
Fair fitting method of b - spline surface and computation of fitting precision for sectional points
樣條曲面光順擬合及其精度計算 -
Secondly, an improved approach for fairing of bi - cubic b - spline surface is presented
提出了一種改進的雙三次b樣條曲面光順方法。 -
Finally, a discrete g 1 continuous b - spline surface is generated by a surface fitting algorithm
最後，通過曲面擬合演算法得到離散g 1連續的b樣條曲面。 -
The problem of triangular mesh based c2 - continuous piecewise bi - cubic b - spline surface reconstruction has been studied
對分片雙三次b樣條曲面重建問題進行了研究。 -
The dissertation is summarized as follows : 1 ) b - spline curve fitting is studied. several curve fitting methods are disc ussed, and a method for b - spline curve fitting in the specified tolerance is pr esented. 2 ) b - spline surface fitting is studied
作者完成的主要工作如下： 1 ）研究了b樣條曲線擬合的問題，討論分析了數種常用的曲線擬合方法，並提出了一種給定允差下b樣條曲線擬合的方法。 -
Then this dissertation implements most of algorithm of non - uniform b - spline surface such as positive calculation, reverse calculation, knot interposer etc. based on the g0, g1 continuous conditions of uniform bicubic b - spline surface, the paper deduces the g0, g1 continuous conditions in the surface reverse calculation then implements it for each face. the last step is the data exporting
然後運用非均勻b樣條曲面反算構造插值曲面，研究了雙三次非均勻b樣條曲面反算過程中的g ~ 0 ， g ~ 1連續條件，並根據該條件針對不同的表面給出了相應的連續策略，實現了各曲面間的g ~ 0或g ~ 1連續。 -
In chapter 6, the usage of floater ' s algorithm on a disk is discussed which is for geometric reconstruction of surface with four edges using double cubic b - spline surface, and the algorithm is generalized to a cylinder and a mobius
第六章討論了floater關於四邊拓撲曲面的雙三次b樣條幾何重建方法在圓一摘要浙江大學博士學位論文一盤拓撲曲面上的應用，並將其推廣到平環與mbbius帶上。 -
Aiming at the lack of traditional ploting method in the areas of three dimension graphics, the b - spline surface is adopted. in order to more easily build the b - spline surface the control points are replaced with one center point during the storage, and make it clear to simulate the curve of branches
在三維圖形的繪制方面，針對傳統繪制方法的不足，採用b樣條曲面來構造三維幾何模型，在曲面的生成及存儲過程中用一個中心點代替多個控制頂點，將對曲面的控制轉為對曲線的控制，使得對枝條形狀的模擬更加方便直觀，並且減少了存儲空間。 -
First, this paper construct the mathematical model of blade according to the original data point of blade surface with 23 degree nurbs ( non - uniform - rational b - spline ) surface
首先，本文根據葉片型面原始型值點數據信息，提出了較合理的數學模型，採用23次非均勻有理b樣條擬合葉片型面，成功的擬合了葉片空間型面。 -
Firstly surface region with bad quality is extracted and vertices of the surface region are approximated with b - spline surface. then the b - spline
首先將品質較差的曲面局部區域分離，然後擬合局部區域中的型值點建立可視模型。 -
And it is a main task for computer vision and image processing to get the accurate subpixel motion information. we introduce bicubic spline surface fitting to the field of image registration
如何得到精確可信的亞象素級運動信息也是計算機視覺和圖象配準中所要解塊的主要問題之一。 -
With this approach, the surface model can approximate inner scattered points and interpolate boundary conditions while keeping the global gl continuity. actually, the study on the theory and technology of b - spline surface reconstruction with complicated boundary constraints is an essential and innovative point of this thesis
實際的運行例子表明，基於這種方案創建出來的曲面模型不僅能夠可調節性地逼近區域內部的散亂數據點，而且同時能夠插值于要求的邊界約束條件，從而保證整個曲面模型的全局g連續性。 -
Surface fairing is an inevitable operation on reconstructed b - spline surface in reverse engineering cad modeling. because of some random factors in data acquisition process or limitation on modeling methods, the quality of the constructed b - spline surfaces may not always satisfy the users " requirements
由於各種各種測量因素和造型手段的局限性，基於測量數據重構出來的b樣條曲面模型的表面品質有時並不能滿足用戶的要求，因此經常需要通過光順來改善重構曲面的品質。 -
( 3 ) the thesis proposes an improved algorithm for fairing of bi - cubic b - spline surface which detects the location of non - fairing automatically and adjusts the relative control points. in addition, a new highlight - line method used for surface interrogation is presented
另外，對曲面光順性檢查的高光線方法進行了改進，用光片模型取代光柱模型，解決了現有高光線方法存在的檢查結果與基準光線相關的問題。 -
The main content of this dissertation includes the processing of the distillation of the contour line from the paper map and the design of the b - spline surface interpolation for the scattered data
主要內容涉及了從紙地圖掃描圖像中提取等高線的實現方法和步驟，以及基於等高線的b樣條曲面插值的方案設計和演算法實現。 -
Free form surface reconstruction is a key step in reverse engineering cad modeling. on the basis of segmentation, an approach of b - spline surface reconstruction with complicated boundary constraints is addressed
基於復雜邊界約束和內部散亂逼近的b樣條曲面重構理論和技術的研究是本文的一個重點和創新之處。 -
Many application examples show that this local b - spline surface designing strategy cannot only guarantee the quality of the surface, but also preserve the global geometric continuity of the whole cad model
大量的實際例子和操作表明，這種基於復雜裁剪邊界約束的局部b樣條曲面設計方案既能保證曲面模型的表面品質，同時又能保持曲面模型的全局連續性。 -
According to the particular characteristics of cad modeling in reverse engineering and the practical demands from customers, the author made an elaborate and in - depth study on b - spline surface reconstruction in three aspects, including b - spline surface fairing, local b - spline surface designing and b - spline surface approximating based on complicated boundary constraints
本文結合反求工程cad建模自身的特點和用戶的實際需要，主要對b樣條曲面造型三個方面的工作做了較為細致和深入的研究和探討： b樣條曲面光順、 b樣條曲面局部設計和基於復雜邊界約束的b樣條曲面逼近。 -
So as to deal with this problem, local b - spline surface designing method with complicated trimmed boundary constraints is advanced. for two neighboring surfaces, we first trim a belt along the common boundary and then bridge a b - spline surface between these two trimmed surfaces with a smooth blending. with respect to the comer area comprised of several adjoining surfaces, a rectangular region covering the comer area is obtained by trimming operations at first, and later a local b - spline for filling the rectangular region is completed through interpolation or approximation
在兩張相鄰的曲面之間，先在其公共邊界處裁剪出一個帶狀區域，然後再採用曲面搭接的方式實現曲面之間的光滑過渡；而在鄰接曲面的公共角點處，先在該角點附近區域裁剪出一個矩形拓撲域，然後運用插值或逼近的方法，設計出一張既滿足於該區域的邊界條件同時又插值或逼近內部采樣點的b樣條曲面。
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