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- This paper describes four surface modeling methods being perspective for CAD/CAMapplications,which are scattered data interpolation Gregory patch ,free-form deformation andpartial differential equation methods. 本文叙述可望在近期内进入CAD/CAM系统的4种曲面造型方法,即散列数据插值曲面、gregory的曲面构造方法(gregory曲面片)、自由变形技术(FFD)和用偏微分方程方法构造曲面(PDE)。
- Scattered in disorder data interpolation. 散乱数据插值
- Keywords Interpolation between slices;Three-dimensional reconstruction;grey level interpolation;Scattered data interpolation;Match interpolation;Nonrigid Registration; 断层插值;三维重建;灰度插值;离散数据插值;匹配点插值;非刚体配准;
- scattered data interpolation 散乱数据插值
- First,data interpolation and smoothness are adopted for removing absent dots and bug dots. 首先针对缺损点和毛刺点进行数据插补和平滑处理;
- Sinc data interpolation method is more suitable for those systems which have a stringent demand for low SNR environment and acquisition time. Sinc内插算法更适合在低信噪比下工作和对捕获时间有严格要求的系统。
- The scattered data that holds the history and awareness of the Living Library is now lining up. 保存历史和生命觉醒图书馆的分散数据正在重新排列。
- Developers frequently require guidance when building JDBC code; bad JDBC code often results in having scattered data access code all over the place. 在建立JDBC程式码时开发人员常常需要一些指导;差的JDBC程式码往往使得到处都是资料存取程式码。
- The relation between the maximum radial error and arc radius and approach step-length in the secant mode of arc data interpolation in CNC system is detailed. 并讨论了圆弧分象限“均差”割线方式插补时,圆弧的起始步距角和终止步距角、起始象限步数和终止限步数;
- A new algorithm is presented in this paper for piecewise quadric B-splines curve reconstruction from scattered data in a plane. 摘要基于控制顶点扰动的思想提出了一种新的曲线重构算法,用于构造一条分段二次B样条曲线来逼近平面上的散乱数据点。
- The paper studies the main algorithm of morphing between spatial triangle meshes, which follows former articles of scatter data triangulation. 摘要研究了在散乱数据的三角剖分后对所形成的空间三角形网格进行变形的具体操作算法。
- Scattered Data Smoothing Surface Interpolation over a Sphere 球面上散乱数据的光滑性曲面插值
- Realize the transformation of data from operating type to analysis type, including colligate the data, coordinate the data, change the continues date to scatter data, and so on. 实现了从操作型数据到分析型数据的转换。其中包括对数据的综合,数据整理(统一表现形式、命名习惯等),根据分析需要,将连续型数据转化为离散型数据等等。
- Based on previous research on geostatistical data interpolation,this paper demonstrates how to use Kriging to design and implement a module to sequence and spatialize data of monitoring station. 该文在对地统计学插值方法研究的基础上,利用普通克里格法设计与实现了站点观测数据的连续空间化模型,并详细讨论了该方法的技术实现细节。最后给出系统的实现结果及用户界面。
- Some application examples of simplified Dynamic NURBS Swung Surfaces are showed, which include rounding and blending, scattered data fitting and interactive sculpting. 举出了一些准D-NURBS摆转曲面的应用实例,如曲面倒圆角与调和、曲面拟合及交互式造型等。
- Edwards attributed that to a lucky twist: The computer was running an ancient operating system, DOS, which does not scatter data all over drives as other approaches do. 爱德华兹将其归功于一件幸运的事上:那部电脑运行的是旧的DOS操作系统,它与其它系统不同,并不是将数据分散在整个磁盘上。
- It is very important and useful technology in the Speediness Prototype manufacture technology that three dimension scatter data are reversed to the STL format data. 摘要在快速原型制造技术中由三维实体离散数据反求STL数据文件是非常重要且实用的技术。
- The fractal interpolation based on the self-similar of data interpolates data by certain mathematical model. 以分形布朗运动为基础来构造地形的相关数据可以较好地体现出地形这一具有复杂特征的自然景物的特点。
- The triangular interpolating surface construction based on scattered data points has extensive applications in CAD/CAM, scientific visualization, image processing. 基于散乱数据点集构造三角插值曲面的方法,在CAD/CAM、科学计算可视化、图像处理等领域有着广泛的应用。
- Several methods of the data interpolating and curve fitting are introduced. 介绍了多种插值方法与曲线拟合方法,对光谱辐射照度标准灯在所需波长间隔上的照度值进行内插运算,包括这些方法的模型建立、参数计算及误差分析过程。