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METHOD AND DEVICE FOR HYPERACUTE DETECTION OF AN ESSENTIALLY RECTILINEAR CONTRAST EDGE AND SYSTEM FOR FINE FOLLOWING AND FIXING OF SAID CONTRAST EDGE
METHOD AND DEVICE FOR HYPERACUTE DETECTION OF AN ESSENTIALLY RECTILINEAR CONTRAST EDGE AND SYSTEM FOR FINE FOLLOWING AND FIXING OF SAID CONTRAST EDGE
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机译：超直线检测基本直线对比度边缘的方法和装置以及所述对比度边缘的精细跟踪和固定系统
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摘要
The invention relates to a method and a device for the detection of an essentially rectilinear contrast edge (E) in a direction, whereby a periodic sweep (Φ) of the global visual angle (Δγ) of the optical sensors (D1, D2), by translation (S) in another direction transverse to the first direction, is carried out. Said translation provides a periodic sweep of non-uniform angular speed (Φ) during a part of the period of sweeping and a measurement of a time difference (t) from the signals provided by the sensors (D1, D2), depending on the angular position of the contrast edge (E) with relation to a reference direction (OY12) within the global visual angle (Δγ) from the sweep law (Φ), said reference direction being connected to a specific value for the time difference (t). The above is of application to spatial stabilisation of a sight line and the fine following and fixing of an object with at least one contrast edge.
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