虚拟装配中面贴合感知构造研究

人机交互是虚拟装配的一个重要特性和瓶颈技术，基于碰撞检测的交互无法满足桌面虚拟装配的实时需要，让虚拟环境感知复杂对象关系是解决人机交互问题的一条重要途径，提出了面贴合感知的实现机制，面贴合的感知模式和相应的感知算法，基于面贴合感知的人机交互摆脱了虚拟装配基于碰撞检测的交互模式，从而避免了碰撞检测算法的复杂度，实验证明面贴合感知增强了虚拟环境对装配过程中人的交互意图的理解，同时有效地保证了交互的实时性，是虚拟装配人机交互的有效手段。

RESEARCH ON CONSTRUCTION OF MATING PERCEPTION IN VIRTUAL ASSEMBLY

Interaction is one of the virtual assembly's important features and a technique bottleneck. Collision-detection-based interaction cannot satisfy real-time requirement. It is an important approach to let virtual environment perceive complicated object relationships in order to solve the problems in interaction. Here put forward are a mechanism, an interaction mode and a relevant algorithm of face-mating perception. They make virtual assembly break away from collision detection based interaction, so the complexity of dynamic collision detection is avoided. The experimental results demonstrate that face-mating perception has enhanced the virtual environment's understanding of users intention, and at the same time it has ensured the interaction being real-time, and is an effective interaction assistant in virtual assembly.