虚拟人环境感知的仿真方法研究

Perception simulation of virtual human in virtual environment

针对目标驱动的追击问题,将视线升维为柱体的视线筒,提出了一种虚拟人环境感知的筒视线方法。根据虚拟人所处的环境和行进速度,以变频方式、周期性地向目标发射筒视线,根据该筒视线与环境中障碍物的各碰撞点的信息和预先设置的行动推理知识库,确定虚拟人的追逐行动;为不完全可知的、动态虚拟环境中的目标追击问题提供了一种新的解决方案。该方案抛开了基于传统视野范围的拟人方式,以通过性的感知为中心,形成虚拟世界的互动性感知标准,建立虚拟人自身的感知功能,取得了更加逼真的仿真效果。原型系统验证了该方法的可行性和有效性。

Aiming at the goal-driven pursuit problem,this paper provided a context-aware virtual human tube line-of-sight by increasing the dimension of line-of-sight to a column-of-sight. This structural model of the tube line-of-sight periodically launches tube sight to the target in frequency mode according to the environment and travel speed of the virtual human. It determined the virtual human chase action according to the information of each obstacle collision point between the tube sight and the environment,and the pre-set action reasoning knowledge. Thereby this paper provided a new solution of the target pursuit problem in a not entirely knowable and dynamic virtual environment. The program set aside the anthropomorphic approach based on the traditional field of view,through passability perception as the center,forming a virtual world of interactive perception standards,to create a virtual person’s own perception of the function and obtain a more realistic simulation results. The prototype system verifies the feasibility and effectiveness of this method.