数据点云分块是逆向工程中一个非常关键的环节，测量数据的分块结果将直接影响到曲面拟合及CAD模型重建的质量。
The point cloud segmentation is an extremely essential step in the reverse model design. The segmentation results will affect the surface fitting and the CAD model reconstruction quality directly.
通过弗格森双三次曲面为研究模型来建立最佳的拟合参数。
At last, through establishing optimal fitting parameters, it is shaped the model of Ferguson bicubic curved surface to surface fitting.
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 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.
在定位的基础上拟合脊柱中心线并建立测点集，应用MC算法输出三角网格模型，重建出脊柱中心曲面。
On the basis of the spine and fitting the centerline of spine, MC algorithm is used to output triangular mesh model to reconstruct the spine center surface.
目的为了提高GPS水准的拟合模型在逼近高程异常曲面时的逼近精度和可信度。
AimIn order to improve approximating precision and reliability of GPS leveling of imitated model in approximating abnormal height curved surface.
受经典物理学中极性场模型及扩展点集思想的启发，提出一种称为“场拟合”的隐曲面重建方法。
Motivated by the concept of classic physical polar field model and off-set points strategy, we present a new approach, called field fitting.
应用有限元法与多面函数法的加权综合模型改进拟合模型在逼近高程异常曲面时的拟合效果。
Combined model on the basis of the Finite Element Method and Multisurface Function was used to improve approximating precision and reliability in modelling abnormal height surface.
高程异常一般呈多曲面分布，在局部区域内，建立多面函数模型进行GPS高程拟合，可以达到较高的精度。
In local area, we can arrive at preferable precision by GPS height fitting using polyhedral function model.
对于参数曲面，采用先离散，再重新拟合的处理方法，建立统一的双三次参数样条曲面通用工件模型。
The input parametric surfaces are discrete, then we will get new surfaces with bicubic parameter spline function and build uniform workpiece model.
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.
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。
For the traditional reverse engineering, the tool-path is generated based on the surface fitting, surface offset and triangulation to construct the surface model.
GPS水准的单一模型在逼近高程异常曲面时其拟合效果往往不稳定。
The results of those simple model of GPS leveling are often unstable.
根据分层吉布斯随机场模型，采用小波函数分级拟合均值曲面，提出了二值化方法。
By using the multi resolution analysis to interpolate the mean values based on hierachical model of Gibbs random field, a method for binary sketch of grey imagre was proposed.
利用这一曲面拟合理论成功地研究了地壳水平形变模型。详细推导了相应的公式。
In this paper the model of horizontal crustal deformation with the fitting method is studied and related formulas are derived.
利用这一曲面拟合理论成功地研究了地壳水平形变模型。详细推导了相应的公式。
In this paper the model of horizontal crustal deformation with the fitting method is studied and related formulas are derived.
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