Film scanner which doubly scans to correct for film speed and po

Details Film scanner which doubly scans to correct for film speed and po Film scanner which doubly scans to correct for film speed and po

1995-06-02

1997-02-18

Garber, Wendy

Television

Special applications

Film, disc or card scanning

348106, H04N 338

Patent

active

056045336

ABSTRACT:
In a film scanner for optically scanning a film for obtaining a picture signal, which film is moved at a constant speed, an image position correction which is as motion-independent as possible, is ensured in that the film scanner at least doubly scans at least parts of each film image and determines image position errors by comparing the two scanning signals of the same nominal image content, and corrects the picture signal in dependence upon the determined image position error.

REFERENCES:
patent: 4875102 (1989-10-01), Peotsch
patent: 4903131 (1990-02-01), Lingemann et al.
patent: 5023711 (1991-06-01), Erhardt
patent: 5475423 (1995-12-01), Eiberger

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