基于反馈控制的自主虚拟人感知模型  

Perception Model for Autonomous Virtual Humans Based on the Feedback Control

作　　者：孙立博[1] 孙济洲[1] 刘艳[1] 倪慧[1] 

机构地区：[1]天津大学计算机科学与技术学院,天津300072

出　　处：《软件学报》2010年第5期1171-1180,共10页Journal of Software

基　　金：天津市科技攻关培育项目No.06YFGZGX06200;天津市应用基础及前沿技术研究计划No.08JCYBJC14300~~

摘　　要：提出了一种基于反馈控制的自主虚拟人感知模型.该模型首先使用感知过滤器模拟人类器官感知限制,然后设计了环形队列存储感知对象的相关信息来模拟人类的记忆功能,进而利用感知和记忆的结果,对感知过滤器的各项参数进行反馈控制,从而体现感知结果对感知过程的影响.实验结果表明,基于反馈控制的感知模型不仅能够较好地体现人类感知系统的特性,而且能够为自主虚拟人行为控制和决策提供更为真实的环境信息.This paper presents a perception model based on the feedback control for autonomous virtual humans. In this model, the perception constraints of the organs are firstly maintained by the perceptual filters. Then, humans’ memory function is simulated since the circular queue is designed to store the relevant information of the perceived objects. Furthermore, according to the results of the perception and memory, all the parameters of the perceptual filter are controlled by feedback so that the effect of the perceived outcome on the process of the perception is demonstrated. The experimental results show that the perception model based on the feedback control not only reflects the characteristics of the human perception system well, but also provides more authentic environment information for autonomous virtual humans to control their behaviors and make decisions.

关 键 词：反馈控制 感知模型 感知过滤器 记忆模型 自主虚拟人 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]