Image analysis – Applications – Document or print quality inspection
Reexamination Certificate
2008-10-23
2011-12-27
Bali, Vikkram (Department: 2624)
Image analysis
Applications
Document or print quality inspection
C382S135000, C358S001140
Reexamination Certificate
active
08085989
ABSTRACT:
In an authenticity determining apparatus, an image-data acquiring unit acquires image data of a paper sheet; a block-value calculating unit divides the image data into a plurality of blocks each composed of a plurality of pixels and calculates a block value of each of blocks; an average-block-value calculating unit calculates an average block value of blocks composing a predetermined area of the image data; a correction-block-value calculating unit calculates a corrected block value of each of the blocks by correcting each of the block values so that the average block value is equal to a predetermined reference value; and an authenticity determining unit that determines authenticity of the paper sheet based on whether each of corrected block values of the blocks composing the predetermined area is within a predetermined allowable numerical range that is preliminarily defined for the predetermined area.
REFERENCES:
patent: 4837840 (1989-06-01), Goldman
patent: 7627161 (2009-12-01), Shimizu et al.
patent: 7862140 (2011-01-01), Yoshida et al.
patent: 2006/0222240 (2006-10-01), Hirota et al.
patent: 2000-182114 (1998-12-01), None
patent: 3501967 (2003-12-01), None
Maeda Shinichi
Ryou Kunihiro
Bali Vikkram
Bitar Nancy
Foley & Lardner LLP
Glory Ltd.
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