【作者】 王彤；

【导师】 刘艳；

【作者基本信息】 天津大学 ， 计算机科学与技术， 2017， 硕士

【摘要】 随着近年来计算机运行速度的快速提高以及计算机图形学的发展进步,群体仿真技术也逐渐成为研究热点。作为仿真技术的一个分支,群体仿真具有很高的实际应用价值。它在某些重大事故现场的模拟等领域发挥极大地作用,科研人员可以利用群体仿真技术提前模拟现场情况,为建筑物的设计以及灾难应急计划的制定提供数据支持。为提高原有群体仿真技术的拟真度,科研人员尝试将情绪传染与人格相结合,提出了一些基于情绪传染的仿真方法;同时为了更好地表达人格与情绪传染的关系、情绪传染的过程以及情绪传染对行为的影响,将情绪以及情绪传染量化,在定性的基础上做到定量描述群体仿真中的情绪模型。但是现有模型依然存在着一些问题导致仿真系统的拟真度不足,因此本文以更深入的视角探索情绪传染的本质过程,以情绪传染基本理论为可靠的理论根据,结合人格特质描述模型,以全新的建模思路建立一个新型情绪传染模型并根据所设计的模型在代码层级进行实现,以提高仿真系统拟真度。同时为了在不影响速度的情况下优化仿真系统的最终效果,结合本文群体仿真系统的具体实现,本文在势能场分层技术上进行了改进,清晰了全局势能场与局部势能场的功能分配,着重明确局部势能场的意义以及所具有的功能,分析了局部势能场的特点并选取了针对性的计算方法,最终在仿真系统的效果和性能之间达到了一个更好的平衡。最后将情绪传染模块与路径规划模块与现有的碰撞避免运行库对接,结合可视化功能实现一套完整的基于情绪传染模型的群体仿真系统。为了验证模型的有效性,本文选择突发事件下的人群疏散场景进行群体仿真过程,通过可视化模块获取仿真的动态效果图以及仿真过程中的数据,与现有技术的数据作对比,以验证本文系统的有效性和先进性。经过数据对比,可证明运用新型情绪传染模型的群体仿真技术更准确地描述了群体仿真中的情绪传染,更加贴近现实。更多还原

【Abstract】 In recent years,with the rapid development of computer operation speed and the computer graphics,the crowd simulation technology has gradually become a research focus.As a branch of simulation technology,crowd simulation has high practical application value.It plays a great role in some major accident scene simulation technology,researchers can simulate the field situation in advance using simulation technology and provide data support for the design of buildings and disaster emergency plan.With a view to improving the verisimilitude of original simulation technology,researchers try to combine emotional contagion and personality;at the same time in order to better express the relation between personality and emotional contagion,the process of emotional contagion and influence of emotional contagion,researchers do quantitative description of emotion model.But the existing model still have some problems leading to the lack of verisimilitude,so this paper establishes a completely new emotional contagion model and implements it with basic theory of emotional contagion as a reliable theoretical basis and combining the personality description model,in order to improve the fidelity of simulation system.At the same time,in order to improve the result while increasing the performance,this paper improves the layered technology of potential field on the basis of system implementation.This paper clears the function distribution,especially clear and define the function of local potential field and select the appropriate algorithm,finally achieve a better balance of performance and result.Finally,a complete set of simulation system based on emotional contagion model has been completed including the emotional contagion model,the path planning module,existing collision avoidance module and the visual module.For purpose of verifying the validity of the model,this paper selects a scene of emergency evacuation to execute crowd simulation system,get the simulation data and the dynamic effect diagram through the visualization module and compare them with the prior data.Through the data comparison,it can be proved that the new model of emotional contagion is more accurate to describe the emotional contagion,which is more close to reality.更多还原