For dealing with the cloud data in reverse engineering, one region-division method which based on character is presented to divide up cloud data, this provides advantage to the later surface fitting.
对反求工程中的点云数据处理，给出一种基于特征的区域分割法来划分点云，为后续曲面拟合提供有利条件。
A data fusion algorithm for sample set transforms surface problem into a curve fitting problem and a curve interpolation problem.
该算法将曲面问题转化为一个曲线拟合问题和一个曲线插值问题。
In optics polishing process, the active lap can reshape the profile for fitting the surface of large optical component with different local position and rotating Angle in real time.
能动磨盘在光学抛光时随磨盘移动位置和旋转角度不同而产生不同的变形以实时与大口径被抛光工件表面实现良好的吻合。
Nowadays, general fitting methods are based on the character equations of quadratic surface to implement. For it is so complicated that a lot of fitting software exist a lot of restrict conditions.
目前的通用方法都是基于二次曲面的特征方程进行拟合，由于特征方程求解复杂，因此这些拟合软件在进行曲面拟合时均存在很多的限制条件。
As an important approach for improvement of productive efficiency and shape design, more and more attention is paid for reverse engineering, fitting of quadratic surface is one of its components.
作为提高生产效率和改善造型设计的重要途径，逆向工程受到越来越多的重视，空间二次曲面拟合是其重要组成部分之一。
To solve the problem of quadric surface reconstruction in reverse modeling for mechanical parts, a two-step fitting algorithm was presented.
针对机械零件反求建模过程中常见二次曲面的表面重建问题，提出了曲面拟合分步计算法。
Local interpolation model is used to replace Zernick polynomials for surface contour error fitting at the grinding stage.
提出了线性插值法代替惯用的泽尼克多项式拟合用于表面的精磨。
For the traditional reverse engineering, the tool-path is generated based on the surface fitting, surface offset and triangulation to construct the surface model.
传统逆向工程要经过曲面拟合、等距、裁剪或三角网格剖分建立其曲面模型，进而才能在曲面模型上生成数控加工刀位。
A novel algorithm for fitting surface reconstruction of unorganized data points is presented in this paper.
给出了一个新的散乱数据的曲面重建算法。
In addition, on the basis of available experimental data a formula for the exact prediction of liquid droplet surface tension was obtained by using a fitting process.
然后综合考虑了水蒸气状态方程、表面张力计算方法和水的密度计算方法对计算临界液滴半径的影响，进而得出了计算过饱和状态下临界液滴半径的具体形式。
The local fitting method is a common method of measure and geometric modeling systems for complicated curved surface because of its mathematical model the same as that of current CAD system.
局部拟合因其具有与通用CAD系统相同的数学模型，所以它是复杂曲面测量几何造型系统的常用方法。
The rules and methods for curve and surface smooth fitting are given. Especially we study for the mathematics model and application with the minimum energy method.
给出了曲线曲面光顺的准则和方法，并着重探讨了最小能量法数学模型的建立及其应用。
The rules and methods for curve and surface smooth fitting are given. Especially we study for the mathematics model and application with the minimum energy method.
给出了曲线曲面光顺的准则和方法，并着重探讨了最小能量法数学模型的建立及其应用。
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