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	利用热释电红外传感器探测人体运动特征
	程卫东 ; 董永贵 ; Cheng Weidong ; Dong Yonggui
	2010-05-13 ; 2010-05-13
关键词	热释电红外传感器 人体运动特征 主成分分析 模式识别 pyroelectric infrared(PIR)sensor human body motion feature principal component analysis pattern recognition TP212.9
其他题名	Detection of human body motion features using pyroelectric infrared sensor
中文摘要	热释电红外(PIR)传感器探测人体发出的红外辐射,在有效探测范围内可实现运动人体的检测。由于它的低成本低功耗,在入侵检测及自动照明控制等方面有广泛的应用。本文对用这种传感器提取人体行走时的运动特征进行了研究。人作为动态的分布式的红外源由体貌特征及步态特征所决定,利用探头表面安装有菲涅耳透镜的PIR传感器得到时域电压信号,对信号的频谱特性进行分析来解析人体的运动特征。采用主成分分析方法对不同个体不同速度的数据进行分类,探讨了这种方式应用于人体运动特征信息的提取及分类识别的可行性。实验结果表明,不同的人以不同的速度步行的频谱数据足以用来分类识别,为安全级别较低场所的人体身份识别提供了一种低成本的方案。; Pyroelectric infrared(PIR)sensors can detect human body motion within a fairly reasonable distance by heat emission.PIR sensors have been used for a wide range of applications such as intruder detection,light actuator due to its low cost and low power consumption.Human body movement characteristic extraction for a walking person is investigated in this paper using a PIR sensor.Each person acts as a distributed infrared source that is determined by the body shape and walking gait of the person.In our study,temporal voltage signals collected by a PIR sensor with coded Fresnel lens arrays were analyzed using spectral techniques to extract the motion features of the individual.We employed principal component analysis(PCA)method to cluster data with respect to different objects at different speed levels,and explored the feasibility of using this method to extract the motion features of individuals for identification.The experimental results display that the spectral distinctions among different persons walking at different speeds are sufficiently discriminatory for classification identification,and the proposed method is also a low-cost human body identification system scheme in some low-security applications.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/30967]
专题	清华大学
推荐引用方式 GB/T 7714	程卫东,董永贵,Cheng Weidong,等. 利用热释电红外传感器探测人体运动特征[J],2010, 2010.
APA	程卫东,董永贵,Cheng Weidong,&Dong Yonggui.(2010).利用热释电红外传感器探测人体运动特征..
MLA	程卫东,et al."利用热释电红外传感器探测人体运动特征".(2010).

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