Abstract: This paper presents an efficient collision detection scheme based on component technique by means of oriented bounding boxes (OBBs) for sophisticated virtual hand model. Firstly, hand model is divided into parts and then the algorithm used the OBB of these parts to build a component hierarchical tree in a bottomup manner. As a result, not only parts’ constraints are satisfied but also the issues of low speed in building and refitting the hierarchical bounding volume tree are solved. In the end, we gave the precision and efficiency evaluation about the algorithm and it was found that it might be a reasonable choice for virtual hand in virtual reality.

Key words: collision detection, component, oriented bounding box, virtual hand