第二部分是移动曲面拟合法的研究和改进。
In the second part, we mainly research and improve the moving surface fitting.
算例表明此方法快速简便，避免多次曲面拟合。
The example shows the approach is quick and convenient and multiple surface fitting is avoidable.
数据分块和曲面拟合是逆向工程中最关键的部分。
Data segmentation and surface fitting are most key parts of reverse engineering.
以谱图表列数据或曲面拟合参数为放电样本的特征量。
The tabulated data or surface fitting parameters of these patterns were used as characteristic vectors.
提出了一种基于参数曲面拟合的三维网格自动生成方法。
A scheme of automatic3D finite element mesh generation, based on parametric cubic surface, is proposed.
针对这种情况，提出一种基于曲面拟合的阈值曲面分割方法。
With regard to this situation, a segmentation method using threshold surface based on surface fitting is proposed.
采用NURBS曲面拟合方法对几何层的人体曲面网格数据进行了拟合。
Human surface control points in geometry layer are fitted with NURBS surface fitting method.
实现了一个从带噪声的密集三角形拟合出带尖锐特征的细分曲面拟合系统。
A fitting system is developed to fit subdivision surface with sharp feature from noising and dense triangular meshes of arbitrary topology.
水利行业经常要进行流量计算，这样就会遇到曲面拟合和曲面积分的问题。
The calculation of flow is often needed in water conservancy, and surface-fitting and double integration are usually met in order to solve this problem.
本文介绍光滑曲面拟合的一个算法，它在709机和TQ-16机上考核通过。
This paper introduces an algorithm of smooth surface fitting. This algorithm has been examined on the 709 and TQ-16 computer.
针对呈格网或接近格网状分布的采样点数据，本文研究了移动曲面拟合内插算法。
According to data which points distribute as grid or approach to grid, the thesis researches the algorithm of mobile curved fitting.
本文主要由复杂曲面造型方法、改进的移动曲面拟合法研究和实例应用三部分组成。
This paper mainly consists of the theoretical methods of complex surface modeling, the research of improved moving surface fitting and analysis of example.
初始曲面拟合是利用UG的二次开发功能，将截面线与边界曲线拟合成一张初始曲面。
Original surface is formed from boundary curve and section curve using the redevelopement interface of UG.
仿真实验和实物测量实验表明，给出的二次曲面拟合方法和不确定度估计方法是正确的。
The simulation and actual measurement experiments were conducted, which suggested that the methods of quadric surface fitting and uncertainty assessment presented be correct.
这个问题可以分为四个子问题，即轮廓对应问题、分叉问题、拼接问题和曲面拟合问题。
The problem can be decomposed into four sub-problems, the correspondence problem, the branching problem, the tiling problem and the surface fitting problem.
这种方法首先对背景进行光顺限制的曲面拟合，再通过设置一个偏移量来形成阈值曲面。
This method includes two steps: surface fitting based on fairing constraint and adding offset to form the threshold surface.
本文介绍一种利用离散正交多项式进行物体表面局部曲面拟合以检测物体的特征的方法。
In this paper a method of using discrete orthogonal polynomials to fitting local surface of object in order to detect characteristics of range images is presented.
利用曲面拟合的方法，分析斜浪中甲板的变形规律，提出了扭转变形分析的分量组合方法。
Use curved surface fitting method, to analyze the rule of main deck's deformation in oblique wave; present method of sub value and combination to analyze torsion deformation.
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。
To solve the problem of quadric surface reconstruction in reverse modeling for mechanical parts, a two-step fitting algorithm was presented.
介绍了激光扫描系统的原理，三角法测量原理，激光扫描仪的结构特征以及曲面拟合有关问题。
The principle of the laser scanning system, principle of triangulation measuring method, the structure characteristics and the relative affairs about surface fitting of laser scanner are introduced.
简要介绍了转换GPS高程的二次曲面拟合法，以及神经网络BP算法的基本结构和数学公式。
The conicoid fitting method used for transforming GPS elevation, and the basic structure and mathematic formulas of BP algorithm of neural networks are introduced briefly in this paper.
分析了应用于反求工程的几种曲面拟合方法，提出一种基于神经网络技术的自由曲面拟合新方法。
Some curve surface fitting methods used in the reverse engineering are analyzed, and a new free curve surface fitting method based on ANN is presented.
本文利用环太湖地区站点的月降水资料，用曲面拟合方法作客观分析，与太湖水位进行相关性研究。
The monthly rainfall data of the stations around Taihu were objectively analysed by a method of curved surface fitting in this paper and the correlation with the Taihu water level was studied.
本文采用曲线拟合及曲面拟合的方法，对商用车发动机外特性和发动机万有特性进行数学模型描述。
It is identical curve surface or curve in this paper. Business car engine's characteristics describe with mathematics' model.
其次，在曲面片内部，曲面拟合点和边界方向导数可以从参考曲线中通过构建虚拟等参线的方法得到。
Next, in the interior of the patches, surface fitting points and cross boundary derivatives are estimated from the reference curves by constructing virtual iso-parametric curves.
为了提高网格简化后的三角形质量，提出了一种新的基于顶点局部多项式曲面拟合的三角网格简化算法。
To enhance the triangle quality of the simplified mesh, a novel triangular mesh simplification algorithm based on local polynomial fitting surface of vertices was proposed.
为了提高网格简化后的三角形质量，提出了一种新的基于顶点局部多项式曲面拟合的三角网格简化算法。
To enhance the triangle quality of the simplified mesh, a novel triangular mesh simplification algorithm based on local polynomial fitting surface of vertices was proposed.
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