足球比赛仿真中虚拟人的感知建模研究

Perception Modeling of Virtual Human in Football Game Simulation

感知建模是虚拟人足球比赛仿真行为建模的一个重要部分,直接影响着虚拟人的行为决策。根据虚拟球员的注意力聚焦规律、视觉生理特点,提出了一种基于注意力聚焦机制的虚拟球员的智能化感知模型,包括虚拟视觉、虚拟听觉和感知聚焦器。在几何视觉模型基础上建立了虚拟视觉模型,采用包围盒技术设计了视野感知器,障碍物感知器采用人工势场法计算出虚拟球员的避碰情况下的视觉方向;根据足球比赛中球员的行为特点,设计了感知聚焦器。实验结果表明该模型是可行的。

Perception modeling is an important part of football game simulation behavior modeling of virtual human, which directly influences virtual human＇ s behavior plan. Perception model was introduced based on attention focusing mechanism according to the attention focusing ntle of footballer and the visual physiological characteristics, including virtual vision, virtual hearing and focusing sensor. Virtual vision model was built based on geometry vision model, view sensor was designed with bounding box, and visual direction in the situation of avoiding collision was computed by artificial field method in obstacle sensor. According to the characteristic of footballer＇s behaviors, focusing sensor was designed. The model is proved feasible by simulation results.