Optical scanner and software for correcting distorted images

Image analysis – Image enhancement or restoration – Artifact removal or suppression

Reexamination Certificate

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Details

C382S286000, C382S313000, C358S003260, C358S473000

Reexamination Certificate

active

06965703

ABSTRACT:
The invention provides a scanner for scanning a surface having a one-dimensional optical sensor and no mechanical moving parts for determining the scanning speed. A method is also provided for processing a text image obtained by scanning a text with a scanner, where the text image is distorted due to variability of the instantaneous scanning speed. The method utilizes the mode character height and font ration for each font in the text obtaining a local correction factor at each location in the text image. The correction factor is related to the instantaneous scanning speed at the location and is used to correct the distorted text image.

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patent: 0 680 005 (1995-11-01), None

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