首先，我们对几何活动轮廊模型中吸引力场进行正则化，扩大目标轮廊边缘对的轮廊曲线的吸引力范围，增加轮廊曲线搜寻凹轮廊的能力。
First, we regularize the attraction force field in the geometric active contour model to extend the capture range of the object boundaries, and improve the ability of convergence to the concavities.
进一步应用基于微分几何的反馈线性化方法，将原非线性系统等价为完全可控型线性化模型。
By means of the feedback linearization procedure of differential geometry, an equivalent, fully controllable and linear model was derived via a homomorphic transformation for the AMT clutch system.
此过程包括几何属性和物理属性模型化。
The process includes modeling the geometry and physics properties.
由于单元能按不同的连接方式进行组合，且单元本身又可以有不同形状，因此可以模型化几何形状复杂的求解域。
Since the element compose of the difference mode, and the element in itself may possess not one shape , hence we can model resolution domain of complex geometry shape .
地质体可视化的关键点在于如何将数据数值映射到几何数据，即如何来建立科学数据的几何模型。
Geological visualization methods on how to mapping the geometry data by data numeric value. that is, how establish the scientific data geometries model.
基于几何特征参数化提出了一种支持模型几何外形再设计的重建模型表达和建模方法。
A novel scheme of reconstructed model representation and modeling for innovative styling is presented based on parameterization of geometric features.
在虚拟环境中，对人体头部变形曲面提取特征并参数化，建立基于弹簧质点系统的标准几何模型；
In a visual environment, the characters of transformative head surface were parametrically drown out and a standard geometrical model of head was established based on the spring mass system.
参数化设计的关键是几何约束关系的提取和表达，几何约束的求解及参数化几何模型构造。
The main problems of Parameter design are abstraction and expression of the geometric constraint relationship, solver of geometric constraint and creation of geometry model.
参数化设计是一种使用重要几何参数快速构造和修改几何模型的造型方法。
Parametric design is a modeling method. It uses important geometric parameters to construct and modify geometric model.
此模型能有效捕捉并自动识别服装制板过程中反映用户设计意图的几何约束关系，实现服装纸样的参数化。
This model could capture geometric constraints effectively and distinguish user's intentions automatically in the process of drawing graph theory so as to realize parametric design of apparel pattern.
为了获取三维数值化概念机模型的浸润面积和横截面积等几何特性，本文提出了一种基于离散化面元的估算方法。
To estimate the geometric characteristics, especially wet areas and section areas, of three dimensional numerical conceptual aircraft models, a method based on surface elements is proposed.
根据结构实体几何法（CSG）建模思想，采用层次化、结构化的建模方法，构建了机床本体（包括刀具）模型；
On the basis of the idea of CSG modeling method, the hierarchical structural modeling method was adopted to construct machine(including tool)model.
通过分析mcnp中子学模型文本描述和构造立体几何表示法的关系，指出从构造立体几何表示法到CAD模型的转换是MCNP中子学模型可视化的关键所在。
Analysis on the relationship between the text description of MCNP neutronics model and the CSG shows that the conversion from CSG to CAD model is the key issue of the visualization.
参数化几何造型可以控制设计元素之间的关系，并且自动更新对模型和工程图所作的修改。
Parameterized model technology can control the relationship between design elements and renew the change of model and engineering drawing automatically.
GIS学者在研究三维地形可视化和数字城市可视化时，普遍在地形、城市建筑物的几何模型上叠加了纹理。
The scholars in the GIS domain always add adding texture on geometry model of the 3D things in the study on the 3D terrain and the digital city.
基于参数化建模模块，构建了LA4V型轴向柱塞泵的几何模型。
Based on parametric modeling module, geometric model of LA4V type axial piston pump was built.
该方法引入了建立和管理参数化模型的策略，通过扩展一般的图形数据结构统一表示几何约束。
A new strategy of constructing and managing the parametric model is used in used in this method. It extends usual graphics data structure to describe geometric constraint.
基于断层图象的几何重建是三维数据场可视化技术的主要研究内容，重建物体的三维几何模型也是分析、仿真、决策的前提。
Geometry reconstruction from slice-images is a main topic of visualization of 3d volume data. Reconstruction of model is the premise of analysis, emulation and decision-making.
根据检测结果用径向基函数插值方法将事先选择好的一个中性标准网格模型进行空间网格变形使其变形为个性化人脸几何模型；
Thirdly we employ radial basis functions (RBF) interpolation method to deform a neutral generic model to the personalized geometry model according to the detected features.
包括运动模型化、目标模型化、几何变换、红外仿真、扫描填充和噪声仿真几部分。
The model involves modeling of target movements, modeling of 3-d targets, translation of geometry, infrared simulation, scanning and filling and noises simulation, etc.
应用于EX系统的NURBS曲面模型是本文的主要研究对象，EX系统从外部CAD／CAM系统获取曲面模型参数信息，通过IGES文件传递，将参数化曲面模型转化为系统可操作的几何模型。
The surface mesh is used in a GCAD system DressingSim EX. Our research aims at NURBS surface models. The models are transferred from exterior CAD/CAM system to EX system by IGES files.
实现这一方法的要点有：（1 ）建立一个合理的联结翼飞机外形的参数化几何模型；
Two key issues concerned in this paper are as follows: (1) geometric description of the joined-wing aircraft configurations with a relatively small number of parameters;
实现这一方法的要点有：（1 ）建立一个合理的联结翼飞机外形的参数化几何模型；
Two key issues concerned in this paper are as follows: (1) geometric description of the joined-wing aircraft configurations with a relatively small number of parameters;
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