Telecine scanner including means for determining and automatically correcting vertical and horizontal picture steadiness errors in continuous-motion film drive scanning
作者： Karsten Witte
DOI:
关键词: Telecine 、 Photodetector 、 Sprocket 、 Electrical engineering 、 Film frame 、 Scanner 、 Engineering 、 Television lines 、 Horizontal and vertical 、 Optics 、 Edge (geometry)
摘要: A telecine scanner includes a device for determining and automatically correcting vertical horizontal picture steadiness errors (film weave correction) during continuous-motion film drive scanning. To perform an optimum correction, correction signals are derived from photosensors (11 13) arranged in the area of gate scanning sprocket holes entire period each frame. The photosensor (11) provided plurality photoelements transversely to direction substantially corresponding number television lines per (13) photoelement sectors (14 21) along edge, being smaller than hole.
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Dieter Poetsch, Automatic correcting of picture unsteadiness in television film scanning ,(1988)
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