Haptics-based dynamic implicit solid modeling
Haptics-based dynamic implicit solid modeling
复制标题
基于触觉的动态隐式实体建模
DOI：
10.1109/tvcg.2004.28
复制
发表时间：
2004
影响因子：
5.2
通讯作者：
Hong Qin
中科院分区：
文献类型：
--
作者：
Jing Hua;Hong Qin
我们系统地提出了一种新颖的交互式实体建模框架，即基于触觉的动态隐式实体建模，该框架建立在体积隐式函数和强大的基于物理的建模基础上。特别是，我们用触觉机制增强了我们的建模框架，以便利用与 3D 触觉界面相关的额外真实感。我们的动态隐式实体是体积隐式函数的半代数集，并受动力学原理控制，因此以自然且可预测的方式响应雕刻力。为了直接操作现有的体积数据集和点云，我们开发了一种分层拟合算法，使用我们的连续隐函数来重建和表示离散数据集，这允许用户使用各种触觉和几何工具包进一步实时设计和编辑现有的 3D 模型，并以任意分辨率可视化它们的交互变形。附加的几何和物理约束提供了对动态隐式实体的更复杂的控制。我们的动态隐式建模的多功能性使用户能够轻松修改建模对象的几何形状和拓扑，而固有的物理属性可以提供直观的触觉界面，用于通过力反馈进行直接操作。
We systematically present a novel, interactive solid modeling framework, haptics-based dynamic implicit solid modeling, which is founded upon volumetric implicit functions and powerful physics-based modeling. In particular, we augment our modeling framework with a haptic mechanism in order to take advantage of additional realism associated with a 3D haptic interface. Our dynamic implicit solids are semialgebraic sets of volumetric implicit functions and are governed by the principles of dynamics, hence responding to sculpting forces in a natural and predictable manner. In order to directly manipulate existing volumetric data sets as well as point clouds, we develop a hierarchical fitting algorithm to reconstruct and represent discrete data sets using our continuous implicit functions, which permit users to further design and edit those existing 3D models in real-time using a large variety of haptic and geometric toolkits, and visualize their interactive deformation at arbitrary resolution. The additional geometric and physical constraints afford more sophisticated control of the dynamic implicit solids. The versatility of our dynamic implicit modeling enables the user to easily modify both the geometry and the topology of modeled objects, while the inherent physical properties can offer an intuitive haptic interface for direct manipulation with force feedback.