Method and apparatus to compensate for imperfect scanner motion

Details Method and apparatus to compensate for imperfect scanner motion Method and apparatus to compensate for imperfect scanner motion

2004-06-09

2009-10-20

Safaipour, Houshang (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S496000, C358S497000, C358S412000

Reexamination Certificate

active

07605953

ABSTRACT:
A method to compensate for imperfect scanner motion in a scanning apparatus having a moveable scanner includes generating an error array by measuring errors in a scanner position at each of a plurality of spaced positions along a direction of travel of the scanner; generating an error compensation array from the error array based on a low frequency component of the error array; and using the error compensation array to adjust at least one parameter associated with the scanning apparatus during a document scanning operation.

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