摘要
基于Gibson的可供性理论 ,提出了虚拟人一种导航方法 .某个可供性是环境的不变量 ,是关于空间、时间和行动之间的一种联系 .虚拟人能够直接感知到可供性 ,可以在虚拟环境中的特定区域设定语义信息 ,从而建立导航区域的概念 .场景的八叉树用来模拟虚拟人对空间的知觉 ,并引入注意机制来增强感知的真实性 .最后 ,在微机上实现了一个基于本文模型的虚拟人行为动画系统 .
A navigation method of virtual human is presented based on the Gibson’s theory of affordances. An affordance is invariance for environment and it is a relation among space, time and action. A virtual human can perceive these affordances directly. Some semantic information is set up for special area in virtual environment. The concept of navigating region is presented. Scene octree is used to simulate the perception of virtual human for space. The attention mechanism is introduced to enhance the reality of sense and perception. A behavioral animation system based on the model is also realized on PC.
出处
《宁波大学学报（理工版）》
CAS
2004年第3期313-318,共6页
Journal of Ningbo University：Natural Science and Engineering Edition
关键词
虚拟人
导航
知觉
注意
virtual human
navigation
perception
attention
