Enabling Customized Behaviors of 3D Avatar in Semantic Virtual Environment

• Main Authors: Chu, Yu Lin, 朱鈺琳
• Other Authors: Li, Tsai Yen
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/87196178311925346479

碩士 === 國立政治大學 === 資訊科學學系 === 96 === In the design of multi-user virtual environments, in order to share 3D contents designed by users, it is crucial to allow the behaviors of an avatar to be designed as animation components and loaded at the run time. In this thesis, we attempt to address the problem of designing a semantic virtual environment by considering the following three parts. First, we have designed a mechanism for user-designed animation procedures to be installed and loaded at run time. Second, we have augmented our virtual environment system with semantic descriptions and enhanced the flexibility of message interchange. Third, we have used two types of interaction scenarios, avatar-environment and avatar-avatar, to illustrate how customized animation components can be designed to enhance the functionality of a virtual environment. In our system, we allow users to design their own XML tags and the corresponding animation components managed in the OSGi framework. These components can acquire world information and generate appropriate animations according to application requirements and environment constraints. We have used ontology to describe the semantics of environments and avatars. Two example components: the motion planner and the avatar-avatar interaction have been designed to illustrate the dynamic installation process and the retrieval of semantic information for the realization of customizing avatar behaviors.