Image analysis – Image enhancement or restoration – Variable threshold – gain – or slice level
Reexamination Certificate
2007-06-26
2007-06-26
Mehta, Shavesh M (Department: 2624)
Image analysis
Image enhancement or restoration
Variable threshold, gain, or slice level
C382S101000, C382S169000, C382S177000, C382S260000, C382S274000, C358S447000, C358S463000, C358S466000, C345S611000, C345S618000, C345S647000, C345S694000, C348S606000, C348S607000
Reexamination Certificate
active
10104878
ABSTRACT:
In order to render information contained in images more detectable in the presence of noise, the present invention discloses a system and method to binarize the images in the presence of noise. The method of this invention comprises the steps of applying a dynamic range reducing filter to the digitized image values, obtaining a range reduced image; applying an edge detecting filter to the range reduced image, obtaining a filtered image; and then, adaptively binarizing the digitized image utilizing the corresponding filtered image to obtain an adaptive threshold.
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Albertelli Lawrence E.
Ii David L.
Kung Nina
Burns & Levinson LLP
Erlich Jacob N.
Lockheed Martin Corporation
Lopez Orlando
Mehta Shavesh M
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