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在三次样条中，要寻找三次多项式，以逼近每对数据点间的曲线。在样条术语中，这些数据点称之为断点。因为，两点只能决定一条直线，而在两点间的曲线可用无限多的三次多项式近似。因此，为使结果具有唯一性。在三次样条中，增加了三次多项式的约束条件。通过限定每个三次多项式的一阶和二阶导数，使其在断点处相等，就可以较好地确定所有内部三次多项式。此外，近似多项式通过这些断点的斜率和曲率是连续的。然而，第一个和最后一个三次多项式在第一个和最后一个断点以外，没有伴随多项式。因此必须通过其它方法确定其余的约束。最常用的方法，也是函数spline所采用的方法，就是采用非扭结(not-a-knot)条件。这个条件强迫第一个和第二个三次多项式的三阶导数相等。对最后一个和倒数第二个三次多项式也做同样地处理。
-the Cubic Spline, to find three polynomial, approaching every right to point the data curve. The kind of terms, these data points called breakpoints. Because only two points a straight decisions, and in between the two curves can be used an infinite number of cubic polynomial approximation. Therefore, in order for the outcome of uniqueness. The Cubic Spline, add the cubic polynomial bound by the conditions. By limiting each cubic polynomial of the first order and second-order derivative, it breakpoint in the same Department, we can better identify all internal cubic polynomial. In addition, the polynomial approximation of these breakpoints slope and curvature is continuous. However, the last one and a cubic polynomial in a breakpoint and the final one, not accompanied by polynomials. There
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Size: 3072 |
Author: 讲演 |
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Description: 不管对于图像的编码还是解码，三次样条算法的性能都是很好的，然后由于计算量比较大使他的效率有所下降，在次提出了一个考虑算法质量的前提下的快速算法。-regardless of the coding for images or decoding, cubic spline algorithm performance are good, and then because of the comparison calculation of the efficiency Ambassador he declined, in a meeting of the algorithm to consider the quality of the fast algorithm.
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Size: 275456 |
Author: 王献中 |
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Description: 任意给定点坐标，可以拟合出B样条曲线，用Matlab写的，算法明确。-arbitrary coordinates to the spot, could fit the B-spline curves, using Matlab written in the algorithm clear.
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Size: 1024 |
Author: 赵鹏 |
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Description: 一个完整的通用3次样条插值算法的matlab源代码，有调用方法的举例.-integrity of a common 3-spline interpolation algorithm in Matlab source code, a method call, for example.
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Size: 1024 |
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Description: 三次样条插值的MATLAB程序（三弯矩方程）-Cubic Spline Interpolation MATLAB (3 Moment equation)
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Size: 1024 |
Author: 郭嘉研 |
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Description: 本工具箱主要包含三部分内容
％ (支持平台MATLAB5.3或5.2,Symbolic math,optim,spline,stats)
％ 1. MATLAB常用数学建模工具的中文帮助
％ 2. 贡献MATLAB数学建模工具(打*号)
％ 3. 中国大学生数学建模竞赛历年试题MATLAB程序-the toolbox contains three main parts% (supported platforms MATLAB5.3 or 5.2, Symbolic math, optim, spline, stats)% 1. MATLAB Mathematical modeling tools used by the Chinese to help% 2. several contributions MATLAB Xue modeling tools (striking*)% 3. China Mathematical Contest in Modeling historical questions MATLAB
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Size: 686080 |
Author: 王志波 |
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Description: 涵盖了nurbs方面的基本算法，可以把源码直接拷贝到程序中。
Table of Contents
Chapter 2 Bezier Curves
Chapter 3 B-spline Curves
Chapter 4 Rational B-spline (NURBS) Curves
Chapter 5 Bezier Surfaces
Chapter 6 B-spline Surfaces
Chapter 7 Rational B-spline (NURBS) Surfaces-nurbs covers the basic algorithm, it can copy directly to the source process. Table of Contents Chapter 2 Bezier Curves Chapt er three B-Spline Curves Chapter 4 Rational B-splin e (NURBS) Chapter 5 Bezier Curves Surfaces Chapdelaine ter six B-spline Surfaces Chapter 7 Rational B-sp line (NURBS) Surfaces
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Size: 57344 |
Author: 胖丫 |
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Description: 演示matlab曲线拟和与插直的基本方法，详细的工具箱可供编程人员使用-demonstration Matlab curve fitting and interpolation straight to the basic methods, detailed toolkit for programmers to use
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Size: 1201152 |
Author: 落落 |
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Description: 非刚性强壮点匹配图像配准。用于医学图像配准。thin plate splines robust point matching.-nonrigid strong point matching image registration. For the medical image registration. Thin plate spline robust point matching.
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Size: 46080 |
Author: Jing Fan |
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Description: 用matlab编写的线性插值，最近邻域插值，和双三次样条插值。-using Matlab prepared by the linear interpolation, the recent neighborhood interpolation and bicubic spline interpolation.
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Size: 18432 |
Author: 周萍 |
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Description: 基于小波变换模极大的多尺度图像边缘检测matlab源代码该算法采用的是样条小波-Based on wavelet transform modulus maxima of the multi-scale image edge detection matlab source code of the algorithm is based on spline wavelets
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Size: 66560 |
Author: 张光年 |
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Description: matlab写的B样条函数的计算，计算插值点的值-matlab write B-spline calculation, the calculation of the value of interpolation points
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Size: 1024 |
Author: 孙伟 |
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Description: B-spline曲线、曲面的插值和逼近算法以及B-spline曲线、曲面的显示。代码是matlab格式的。-B-spline curve, surface interpolation and approximation algorithm, as well as B-spline curve, surface display. Code matlab format.
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Size: 8192 |
Author: yang |
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Description: 基于matlab的三次样条插值算法程序-Matlab based on the cubic spline interpolation algorithm procedure
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Size: 1024 |
Author: |
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Description: 使用MATLAB绘制3次均匀B样条曲线，有一定参考价值-The use of MATLAB drawn 3 times uniform B-spline curve, has a certain reference value
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Size: 1024 |
Author: 卓雅 |
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Description: 一个薄板样条模型（thin plate spline）matlab源代码-A thin plate spline model (thin plate spline) matlab source code
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Size: 45056 |
Author: zhu |
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Description: 三次样条插值 MATLAB编程 可直接会出图像并输出样条函数-Cubic spline interpolation can be directly MATLAB programming will be the image and the output spline function
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Size: 10240 |
Author: niyang |
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Description: Matlab学习宝典
插值与拟合
Matlab学习宝典-Learning Matlab Interpolation and Fitting Matlab Baodian learning Baodian
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Size: 179200 |
Author: randy |
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Description: 这是在MATLAB-2008a环境下编写的B样条曲面生成程序，可以通过调整节点矢量和控制顶点来调整曲面形状。-This is a MATLAB-2008a environment, prepared by B-spline surface generation program, you can adjust the knot vector and control points to adjust the surface shape.
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Size: 503808 |
Author: 小胡 |
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Description: 给定控制点，生成节点和B样条基函数，绘制非均匀三次B样条曲线(Given control points, generating nodes and B spline basis functions, drawing non-uniform three times B spline curves)
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Size: 39936 |
Author: D_HH |
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