Based on an analysis of the geometric relationship and interpolation features, an improvement for the present TFI method is proposed with a rotation correction. 依据几何关系并考虑其插值特点,提出了一种带旋转修正的TFI动网格方法。
Using geometric method, a rational interpolation within convex polygons is constructed and extended to include side nodes. 构造出凸多边形上的一个新型有理插值,并将其推广到含有边节点的情况。
Geometric Characterization for Bivariate Interpolation and Plane Configurations of Interpolation Nodes 二元插值的几何特征与插值结点平面构形
Triple Geometric Hermite Interpolation for Spatial Curves 空间曲线的高阶几何Hermite插值
Due to the problems in Geometric Modeling for Historical Cultural Relics ( HCR), a new geometric modeling mending method based on many knot spline interpolation is proposed in this paper. 针对历史文物几何建模中的问题,提出了一种基于多结点样条的几何建模修补方法。
The Shape Preserving Geometric Hermite Interpolation 保形几何Hermite插值
The Natural Neighbour interpolation based on Voronoi Diagram is the mathematical base of Natural Element Method ( NEM), it is a new geometric interpolation method and to be constructed by a special procedure differences from traditional method, meanwhile it possesses some advantages. 新的基于Voronoi图的NaturalNeighbour插值是自然单元法的数学基础,也是一种新型的几何插值方法,具有与其他传统常用插值不同的构造方法,并表现出一定的优越性。
Through the geometric interpolation behind the texture plane, degenerated geometry is produced, thus realizing smooth transition from geometric representation to texture mapping. 转换时,通过对纹理投影面后的几何插值,生成退化几何,实现几何-纹理间的光滑过渡。
Then, they workout a restoration and enhancement scheme for linear motion degradation image by using inverse filter, geometric rectification and cubic spline interpolation. 论文采用奇偶场矫正、反向滤波、多项式矫正和直方图平衡等方法,提出一个运动退化图象恢复的综合方案。
This paper reviews the three main methods of studying geoid and discusses the orthometric height accuracies obtained by combining GPS ellipsoidal height determination results with the surface fitting technique ( or a geometric interpolation method). 本文简单地介绍了研究大地水准面的三种主要方法,及利用GPS高程测量成果结合的表拟合技术求正高高程应用的情况。
This paper discusses the geometric Hermite interpolation of spatial curves by constrained energy minimization with parametric quartic B é zier curve. In addition to its position and tangent direction, the curvature vector is prescribed at each knot. 讨论了空间四次Bézier曲线在具有最小强迫能量的情况下的几何Hermite插值,曲线不仅插值于两端点,而且插值于各端点的切线、曲率。
Mending Method for Geometric Modeling Based on Many-knot Spline Interpolation 基于多结点样条插值的几何造型修补方法
An Improved Geometric Model and Its Realization for Multiple Cubic Bezier Curve Interpolation 多段三次Bezier曲线插值几何模型的改进及实现
Geometric correction of MODIS data based on fractal interpolation method 基于分形插值技术的MODIS资料几何纠正方法
Geometric Method for Hermite Interpolation by a Class of PH Quintics 一类五次PH曲线Hermite插值的几何方法
Geometric Nonlinear Stiffness Matrix Based on Tension-Compression and Torsion-Warping Interpolation Function 基于拉压与翘扭插值函数几何非线性刚度矩阵
Interpolation on gray images is needed in the course of geometric operation. Bilinear interpolation algorithm is effective, but its program is complex and the running time is longer. 几何运算要求对图像进行灰度值插值,双线性算法可产生令人满意的效果,但是程序较复杂,运行时间较长。
Optimized geometric hermite interpolation of space curves by constrained energy minimization 带有强迫能量的最优几何Hermite插值
Adopting geometric method, the rational function interpolation is constructed on polygonal element. 采用几何的方法构造出多边形单元上的有理函数插值。
Analysing a geometric model for interpolation which is based on multiple cubic Bezier curves, this paper puts forward its improved version so as to simplify the calculation of additional vertexes and make the interpolation curves smoother. 分析一个多段三次Bezier曲线插值几何模型,对其进行改进,简化了附加顶点的箕法,使插值曲线更为平滑。
Geometric method and characteristic of a new natural neighbour interpolation using voronoi diagram 用Voronoi图进行新型自然邻居插值的几何学方法与特性
Three Geometric Forms and Free Control Theory of Fractal Interpolation 分形插值的三类几何形式及其自由控制理论
Based on the PM and CPM approaches, an dynamic refinement of the geometric meshes of 3-D models in compression and progressive transmission with linear interpolation in the period of receiving the next batch of compressed data is proposed. 通过对渐进网格(PM)和压缩渐进网格(CPM)技术的探讨,提出了在采用线性插值的方法分批传输压缩数据的同时,动态细化3D模型的几何网格。
The fourth part of the dissertation proposes a modified PTS algorithm, which could efficiently reduce the computational complexity by estimating the maximal envelope of transmitted signals using geometric interpolation. 针对这个问题,本文的第四部分研究了一种改进的PTS算法,通过几何内插估计发射信号的最大包络值,从而降低传统PTS法的计算复杂度。
This paper presents a new Geometric Hermite Interpolation method for the reason that most existed methods may not consider the shape adjustment and the fairing of the interpolation curves. 针对已有的研究工作很少考虑几何Hermite插值曲线的形状调整和光顺问题。
As far as geometric aberration is concerned, mesh template image obtained with polynomial fitting is used for geometric aberration parameter determination of system and then the parameters are used in geometric adjustment and gray interpolation for image reconstruction. 2. 对于图像的几何失真畸变,利用多项式拟合的网格模板图像,得到系统的几何畸变参数,然后利用该参数对图像进行几何校正和灰度插值,得到复原的图像。
Geometric Hermite interpolation is to find a curve which interpolates positions, tangent vectors, curvatures and other conditions at the end. It has widely application in geometric structure and engineering design. 三次Hermite插值,即要求构造一条曲线插值于给定的两端点及端点处的切方向和曲率等条件,在几何造型和工程设计中有着广泛的应用。
Experimental results show that the proposed method has good performance as compared with existing algorithms in both computational accuracy and efficiency. A geometric interpolation algorithm for skinning of circles on unit sphere is put forward. 实验结果表明:与现有的一阶算法以及基于点投影技术的离散投影方法相比,所提出的二阶算法在计算精度和效率方面占用优势。提出了单位球面上圆环序列的蒙皮算法。
This method is an extension of geometric Hermite interpolation. It allows for easy computation and local modifications. 该方法可以看作几何Hermite插值方法的补充,计算简单,可作局部修改。
As an important aspect of Computer Aided Geometric Design, the parameter interpolation curve has also been widely used. In practical applications, interpolation curve is often required to achieve continuous and smooth. 作为计算机辅助几何设计领域中一个重要方面,参数插值曲线也得到了广泛的应用,实际应用中常要求插值曲线达到连续光顺的效果。