提出了基于最小能量约束的水平集重构方法，用以解决由三维数据点云自动重构复杂拓扑结构物体模型的问题。
A constrained energy minimization based on level set method for 3d reconstruction of object with complex topology is proposed.
本文首先构造一个顶点数目、顶点分布、拓扑结构、二维参数化纹理坐标都非常适合影视特效中使用的三维人脸基本网格；
First we construct a generic face mesh which vertex number, vertex distribution, mesh topology and 2D parameterization are very suitable for the film visual effect field;
建立由智能虚拟器官构成的分枝网络，来存储虚拟植物拓扑结构、几何形态和生理信息，并可直接解析出三维可视化图像。
The branching network composed of IVOs has been established, to store the virtual plant topology, geometry and physical information, and can directly be resolved 3d visualization image.
本文在MPEG - 4的三维人脸动画原理的基础上提出一种新的基于MPEG - 4的、适宜于任意拓扑结构模型的三维人脸动画实现方法。
Based on the theory of facial animation in MPEG-4, a new method of realizing 3-d facial animation is proposed in this thesis. This method is applicable for all topological face models.
目前还没有通用的方法表示三维空间拓扑结构，尤其是三维体对象之间的拓扑关系。
Until now, there is no general representation for 3d topological structure, especially topological relationships between 3d solid objects.
为保证模型相对准确和满足模拟手术过程中三维交互的实时性要求，手术模拟系统要求在保持模型拓扑结构的前提下简化模型。
To keep3D model relatively accurate and meet the realtime requirement of3D interaction on surgery simulation, a simplified model which keeps topological consistency should be acquired.
基于相位映射的三维传感技术对几何形状和拓扑结构复杂或表面梯度很大的物体进行绝对相位测量及相位重建仍然是一个困难的问题。
Absolute phase measurement and phase reconstruction to object surfaces with complex geometric and topologic shapes still remain difficult for phase mapping based on three-dimensional (3d) sensing.
基于相位映射的三维传感技术对几何形状和拓扑结构复杂或表面梯度很大的物体进行绝对相位测量及相位重建仍然是一个困难的问题。
Absolute phase measurement and phase reconstruction to object surfaces with complex geometric and topologic shapes still remain difficult for phase mapping based on three-dimensional (3d) sensing.
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