bicubic 中文意思是什麼

bicubic 解釋
二元三次的
  1. At first we improve the methods of iris image preprocessing, including an efficient arithmetic of evaluation iris images, an improving method of locating iris, calibrating iris image by the translation of coordinate and the circular shift of code, a eatimate of the background illumination by bicubic spline, and the image enhancement by the dual tree complex wavelet transform. next we designed the recognition arithmetic based on the location of the local maxima of the wavelet transform modulus. in the thesis lots of simulation are performed by means of matlab and visual c + +

    首先改進了虹膜預處理方法，實現了一種快速高效的虹膜質量評價演算法;設計了一種改進的兩步虹膜定位演算法，準確的定位了虹膜的內外邊界;利用坐標轉換和編碼的循環移位實現了對虹膜圖像的配準;利用雙三次樣條函數擬合虹膜圖像背景，去除了非均勻光照對虹膜識別的影響;使用二分樹復數小波方法增強了虹膜圖像的對比度;在識別演算法方面，本文設計了一種「基於小波模極值點位置的虹膜識別演算法」 。
  2. 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。
  3. The smooth connection of two adjacent bicubic b zier patches

    曲面片的光滑拼接
  4. Nurbs surfaces with single interior knots are simple and used widely. the thesis main aims at biuquartic, biquintic, k x fc - degree b - spline surfaces and bicubic nurbs with single interior knots. one of the contributions is to apply knot refinement and the geometric continuous conditions of bezier surfaces to deduce the geometric continuous constraints of nurbs patches and obtain the intrinsic equations of common boundary curves, where the intrinsic equations are the special phenomena of nurbs surfaces

    節點向量是內部單節點的nurbs曲面是最簡單也是最常用的，本文重點針對單節點的雙四次、雙五次和雙k次b樣條曲面及雙三次nurbs曲面，運用節點插入技術和b zier曲面的幾何連續理論成果，導出了它們之間的幾何光滑拼接條件，同時得到了公共邊界曲線所必須滿足的本徵方程，其中本徵方程是nurbs曲面所獨有的現象。
  5. 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。
  6. Specifies high - quality, bicubic interpolation

    指定高質量插值法。
  7. Bicubic rescale algorithm shrinks video to small screen size in best possible quality

    使用雙三插值運算來修改畫面大小，使得畫質得到盡可能的保證。
  8. Bicubic spline functions

    雙三次樣條函數
  9. Bicubic spline function

    雙立方樣條函數
  10. Secondly, on the basis of the discrete data and smooth feature of the surface of the radome, the inner surface is reconstructed by the bicubic uniform b - spline surface approximating means with least square method. finally, a tool - path planning method is presented, which is a combination of the constant scallop - height method with the isoparametric method

    在分析目前最為成熟的結構化和面向對象軟體工程方法的基礎上，應用結構化和面向對象方法相結合的思想，實現了天線罩測量和磨削的軟體系統的分析、設計和開發。
  11. Realization of smooth connection of bicubic b 233 ; zier surface patches

    曲面片光滑拼接的實現
  12. We propose a method that automatically generates discrete bicubic g 1 continuous b - spline surfaces that interpolate the curve network of a ship hullform

    本文中我們提出一種從船殼網格中插值生成離散雙三次g 1連續的b樣條曲面方法。
  13. Otherwise, the other method is used. the method based on catmull - clark subdivision is simple. it creates large, smoothly joining bicubic b - spline patches from a refined catmull - clark subdivision meshes

    當需要比較小的曲面時，採用基於catmull - clark子剖分的方法；當需要較大片的曲面時，採用基於重采樣的方法。
  14. Then it may be generally applied in engineering. we note that it is the first time that the o ( h6 ) cionvergence of the derivative at nodes is achieved by this technique for bicubic finite element, which is proved in the third chapter

    注意到利用這種恢復技術對雙三次矩形元我們第一次在節點處獲得了導數的o （ h ~ 6 ）強超收斂率，本文第三章給予了理論證明。
  15. Our algorithm significantly outperforms the classical bilinear and bicubic interpolation methods in terms of edge sharpness and artifact reduction. 4. the applications of the continued fractions are extended, which will further push forward the study of the continued fractions

    而本文的方法是基於用非線性方法進行邊緣處理，該方法將newton線性插值方法和連分式有理插值方法進行有機的結合，提高了圖像的插值速度和效果。
  16. And the researches of the article have been done as follows : firstly, about the adjustment of rotation, a method, based on susan corner detection algorithm, is presented in the thesis. and the rotated image is rectified exactly by the symmetry of the portrait image and the invariant to rotation of shoulder corner. then the detail of images is preserved by the approximately geometrical processing based on the bicubic interpolation algorithm

    具體工作如下:第一，在旋轉調整方面，本文採用了一種基於susan角點檢測的演算法，利用了人像所具有的對稱性以及肩部拐點旋轉不變特性比較準確的實現旋轉校正;並採用了雙三次插值方法對圖像作幾何近似處理，很好的保持原圖像的細節。
  17. In this paper, we focus on the plate bending problem. a theorem about the anistropic interpolation is proved which is easier to be applied than apel ' s. based on the theorem, it is proved that the bicubic hermite rectangular element and the acm element have the anistropic interpolation property

    應用給出的比apel的定理易於操作的各向異性插值定理，驗證了用於板彎曲問題的協調元雙三次hermite矩形元和非協調元acm元具有各向異性插值特徵。
  18. Using the analytic method of the anisotropic element, it is proved that the precondition is unnec - essary to the two finite element spaces - the bicubic hermite rectangular element and the acm element. then the error estimates of the narrow bicubic hermite rectangular element and the narrow acm element for the plate bending problem is obtained. in the end of the paper, numerical results are given

    文章中應用各向異性單元分析方法，證明了正則性條件對雙三次hermite矩形元和acm元空間是不必要的，從而得到了窄邊雙三次hermite矩形元和窄邊acm元對板彎曲問題的誤差估計。
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