提出了一种基于三维网格模型的布尔运算方法。
A kind of Boolean operational method based on a three-dimensional grid model was proposed.
将其点云利用一系列的软件转换成三维网格模型。
Its point cloud could be transformed into mesh model by a series of computer software.
给出一种稳定、高效的三维网格模型的布尔运算算法。
This paper proposed a stable and precise algorithm for 3d mesh model.
可见三维网格模型简化的研究课题具有一定的应用价值。
Obviously, the simplification of 3d mesh models is a valuable research direction.
因此三维网格模型的变形算法是网格模型研究中很重要的组成部分。
So the deformation algorithm of 3d mesh models is a very important part of mesh researches.
因此，三维网格模型的平滑研究已成为三维模型处理的一个重要方向。
So, the smoothing research of the three-dimensional meshes model has already become an important direction in which the three dimensional model has dealt with.
人眼采用三维网格模型，并结合纹理匹配，获得了较逼真的人眼模型。
This model has been simulated on a PC computer, and the eye model is realistic.
与三维网格模型的K均值聚类分割、点云模型的谱系聚类分割的实验结果比较证实了这一点。
This is supported by the comparison with the results of hierarchical clustering segmentation of point cloud model and K-Means clustering segmentation of mesh model.
该系统使用三维物体的一组序列照片及各幅照片相应的DLT参数作为输入，生成一个三维网格模型。
It USES a sequence of images and related DLT parameters of each photo to produce a 3d mesh.
通过保形自适应重采样，可将三维网格模型转化为规则排列的二维几何图像，从而可借鉴成熟的图像压缩技术对其进行压缩。
The 3d mesh model is transformed into geometric image by adaptive shape-preserving resampling, and compressed using the image processing technique.
方法：根据人体下颌骨的螺旋CT扫描图像，利用三维重建、图像处理和网格划分技术，建立人体下颌骨的三维有限元模型。
Methods: a Finite Element Model of human mandible is developed from ct scan images by the technologies of three-dimensional reconstruction, image processing and meshing.
我们从高程控制点中提取高程数据，利用规则矩形网格模型实现了三维地貌的显示。
We drew out the elevation data from elevation control points, and made use of the regular square grid to display three-dimensional terrain.
采用作者给出的三维紊流模型，结合混合有限分析法及交错网格对浅水型河道中扩散器垂向排放的流动进行了数值计算。
A three dimensional mathematical model for calculating the steady flow of multiple non buoyant turbulent jets in a cross flowing is present in this paper.
目前基于点云的三维重建，大都是通过一些算法构造出三维表面网格模型。
Now based on the three-dimensional reconstruction of point cloud, it is to make three-dimensional surface grid model through some algorithm.
本文介绍一种合并三维地质模型网格数据体的新方法。
This paper presents a new scale-up technique for the grid data volume of a 3D geological model.
本文使用非结构化网格有限体积法三维水动力模型，分析研究了河流对近岸水环境的影响。
In the paper, three-dimensional finite volume hydrodynamic model with unstructured grid are adopted to study the impacts of rivers on the coastal water environment.
根据人体下颌骨的螺旋CT扫描图像，利用三维重建、图像处理和网格划分技术，建立了人体下颌骨的三维有限元模型。
A finite element model of human mandible is developed from ct scan images by the technologies of three-dimensional reconstruction, image processing and meshing.
针对有限三维点集的表面重构问题，提出一种可变形网格模型的建模方法。
A deformable mesh model was presented for surface reconstruction from a finite 3d point set.
本文从三维编织复合材料的细观单胞模型出发，将结构单胞作为离散单元对三维编织复合材料进行宏观网格剖分，建立了细观单胞元刚度矩阵的求解方法。
Based on the unit-cell model of 3-d braided composites, the composite structure is meshed by the unit cells, then the stiffness of the cell-element is formulated.
在生成三维随机球形骨料模型的基础上，研究了形成随机凸多面体骨料模型的方法，并利用FORTRAN语言编制凸多面体骨料生成程序和细观有限元网格剖分程序。
FORTRAN program to generate random convex polyhedron aggregate based on the topology of spherical aggregates and the codes of the mesoscale structured finite element grids of concrete is developed.
其次根据宿主网格模型定义三维构图知识，包括构图坐标系类型和其他纹理映射参数；
The second is defining the 3D design knowledge of host polygonal model, including mapping coordinate type and other parameters.
然后，利用UG软件建立叶轮流道的三维模型，并将该模型导入到ANSYS中划分计算网格。
Then establish the three-dimension model of the impeller passage with UG soft and put the model into the girding caved up by the ANSYS.
以非均质各向同性渗流模型仿真地下水流，用不规则三角网格有限差分法求解三维数值仿真模型。
The groundwater flow is simulated with the seepage model of heterogeneity isotrope, and the partial differential equations are solved with finite difference scheme of irregular triangle net.
在三维任意曲线坐标系下采用不同的亚网格燃烧模型对环形燃烧室火焰筒气液两相湍流瞬态反应流进行大涡模拟。
Two different subgrid-scale combustion models were used for the Large-Eddy Simulation (LES) of turbulent chemical reaction flows in a model combustor with V-gutter flame holder.
针对由数字地图等以均匀网格形式给出的高程数据生成真实三维地形的仿真需求，提出了一种基于加权外推算法的地形几何模型。
For the requirements of creating 3d terrain based on the elevation data which is in the form of regular grid, a kind of modeling method based on weighted average algorithm is proposed.
将亏格为零的三维模型进行球面参数化的方法大致可以分成3类：(1)基于累进网格的方法(2)球面松弛的方法(3)保角参数化方法。
These methods can be divided into three: (1) method based on progressive mesh (2) method based on sphere relaxation (3) conformal method. The three methods have their own advantages and shortcomings.
本文提出了一种适合多分界面三维结构的有限网格自动划分方法，在网格划分的同时建立起三维模型。
An automatic mesh generation scheme is proposed, it suites to the 3-d structure with multi-surface, in the same time the 3-d model is constructed.
消除网格噪声是构造完美三维模型过程中必不可少的一步。
Mesh denoising is an essential step in creating perfect 3D models.
消除网格噪声是构造完美三维模型过程中必不可少的一步。
Mesh denoising is an essential step in creating perfect 3D models.
应用推荐