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1. 发明申请

WO0241128A3 MEASURING METHOD FOR DETERMINING THE POSITION OF AN OBJECT IN FRONT OF A SCREEN AND A DEVICE FOR CARRYING OUT SAID METHOD 审中-公开
标题翻译：测量方法用于实现该过程确定物体的位置。在前面的屏幕及装置
公开(公告)号：WO0241128A3
公开(公告)日：2003-05-08
申请号：PCT/DE0104382
申请日：2001-11-16
申请人： FRAUNHOFER GES FORSCHUNG , LIU JIN , FEDDERSEN EGGERT , PASTOOR SIEGMUND , TIETJE VOLKERT
发明人： LIU JIN , FEDDERSEN EGGERT , PASTOOR SIEGMUND , TIETJE VOLKERT
IPC分类号： G06F3/00 , G06F3/01 , G06F3/033 , G06F3/042 , G06K11/08
CPC分类号： G06F3/012 , G06F3/0421
摘要： The invention relates to a measuring method, which is primarily used for determining the head position of a user of a display at a computer work station ("head tracking"). A method known in prior art constructs two light barriers, using two permanently emitted parallel infra-red lobes of light, which delimit the permitted residence zone on both sides and only allow a yes/no statement about the position of the object. However, in order to obtain an absolute statement about the current head position with a high degree of accuracy, without placing a physiological stress on the user, the inventive measuring method is provided with a large number N of emission locations (EL) along a virtual line (VL), said locations emitting cyclic short infra-red light pulses (IRP) in sequence. This generates an infra-red light beam, which continually scans the occupied space (OA). A preferably identical number M of measuring locations (ML) is used to measure the current intensity profile by a weighted recording of the infra-red light pulses (IRPR) reflected by the object surface (OS), in order to calculate the centroid (OP) as a relevant position parameter (po). The inventive device is preferably configured as a compact sensor line (SL) with alternately integrated infra-red light sources (IRL) and phototransistors (PT).
摘要翻译：本发明涉及一种测量方法，该方法主要用于确定用户的头部位置上显示一个计算机工作站（“头跟踪”）。一个众所周知的一般类型的方法建立与在该限制两侧的批准休息室和只允许关于对象位置的是/否声明两个光屏障2条永久射出平行的红外光束。然而，为了获得当前磁头位置的绝对指示以非常高的准确度，而无需沿虚拟泽ILE（VL）传输位置的更大的数N（EL）生理学给用户带来负担，在本发明的测量方法被提供，其在时间上按顺序并循环短红外光脉冲（IRP）发送出去。其特征在于，产生的红外光束，其不断地扫描留空间（OA）。由电流强度分布的测量位置的一个优选相同的数目M（ML）的装置是由加权从以由此计算的质心（OP）测量红外光脉冲（IRPR）作为相关位置参数（PO）的物体表面（OS）采集的反射。一种优选的设备是一种紧凑的传感器线（SL）与交替内置建立红外光源（IRL）和光电晶体管（PT）。

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