介绍了环绕智能(简称为 AmI)的概念和一种新型的交互式的环绕智能显示应用技术.首先,作者介绍了环绕智能系统的机理和一些具体的技术问题.系统采用了基于隐马尔可夫模型的人脸识别算法进行用户身份的识别,以实现个性化的服务目标,实验结果表明该方法是十分有效的.这样用户身份可以通过人脸识别的方法加以确定,然后通过 LCS(学习分类器)技术提供个性化的服务.另一方面,我们采用了小波分析和模版匹配技术来估计用户的基本脸部朝向状态,以驱动视频投影机旋转到与人脸朝向一致的方向.总之,文中描述的研究成果将可能应用于智能会议或智能教学环境.%The conception of Ambient Intelligence (AmI) and an new interactive display technique applied to AmI application are introduced here. First of all, the mechanism of our AmI system and several idiographic technique issue is expounded stepwise. For providing personalized service an algorithm of face recognition based on Hidden Markov Model is researched and the experimental results show efficient. In this way the user can be identified by the method of face recognition, and the system with a LCS(learning classifier sys-tem) can provide personalized services. Otherwise, we adopt the wavelet analysis and template matching technique to estimate the user's several basic face orientation, thus the video projector is driven to rotate toward the same direction. In sum, the study described here is likely to be used in the intelligent meeting or teaching environment.
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