Reference grid rectilinear correction

Details Reference grid rectilinear correction Reference grid rectilinear correction

1994-08-24

1997-02-18

Wong, Peter S.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358486, 358406, 358474, H04N 1047

Patent

active

056046014

ABSTRACT:
A scanner for copying an image from substrate including a substrate holder for holding the substrate having a reference grid preferably disposed to one side of the substrate. The scanning means, e.g., a CCD array, simultaneously scans the image and the reference grid as the substrate holder is moved relative to the scanning means. The scanner contains software and/or hardware for interpreting the sensed portion of the reference grid as a position. The position is associated with the raw scan line of the image which was sensed at the same time as the sensed portion of the reference grid.

REFERENCES:
patent: 4160199 (1979-07-01), Bardwell
patent: 4369365 (1983-01-01), Bedford et al.
patent: 4641357 (1987-02-01), Satoh
patent: 4667227 (1987-05-01), Ikeda
patent: 4903131 (1990-02-01), Lingemann et al.
patent: 5537226 (1996-07-01), Wolberg et al.
patent: 5539532 (1996-07-01), Watanabe

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