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1. 发明申请

US20090303459A1 METHOD AND APPARATUS FOR CONTACTLESS DETERMINATION OF A LATERAL OFFSET RELATIVE TO A STRAIGHT-AHEAD DIRECTION 有权
标题翻译：与直线前沿方向相关的侧向偏移的方法和装置
公开(公告)号：US20090303459A1
公开(公告)日：2009-12-10
申请号：US12540989
申请日：2009-08-13
申请人： Lukas PUELLEN , Dietmar KAUL , Michael DOERR
发明人： Lukas PUELLEN , Dietmar KAUL , Michael DOERR
IPC分类号： G01P3/36 , G01C1/00
CPC分类号： G01B11/002 , G01B11/2755
摘要： Method and apparatus for contactless determination of lateral offset relative to a straight-ahead direction when an object moves relative to an object with a stochastic surface structure, in which the surface structure is imaged on at least two similar photosensors arranged behind one another at a defined separation in the straight-ahead direction and having a spatially resolving longitudinal extent transverse to the straight-ahead direction, a spatial frequency signal corresponding to the surface structure is generated by the sensors, the spatial frequency signal of a second sensor in the movement direction is read, temporally shifted relative to the spatial frequency signal of the first sensor, such that the same, at least partially overlapping surface structure is imaged on both sensors, the spatial frequency signals of the first and second sensors are correlated to determine a correlation coefficient, and the lateral offset of the correlated spatial frequency signals on the sensors is determined.
摘要翻译：当物体相对于具有随机表面结构的物体移动时，相对于直前方向的非偏移确定侧向偏移的方法和装置，其中表面结构被成像在至少两个类似的光敏传感器之间，所述至少两个类似的光敏传感器以规定的在直线方向上分离并且具有横向于直线前进方向的空间分辨的纵向范围，由传感器产生与表面结构相对应的空间频率信号，第二传感器在移动方向上的空间频率信号是读取，相对于第一传感器的空间频率信号暂时移位，使得相同的至少部分重叠的表面结构被成像在两个传感器上，第一和第二传感器的空间频率信号被相关联以确定相关系数，以及相关空间频率信号在传感器上的横向偏移决心，决意，决定。

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