Image analysis – Histogram processing – With a gray-level transformation
Reexamination Certificate
2006-04-05
2010-10-12
Couso, Jose L (Department: 2624)
Image analysis
Histogram processing
With a gray-level transformation
Reexamination Certificate
active
07813547
ABSTRACT:
An apparatus and method for detecting and analyzing imagery, wherein the apparatus includes an image data acquisition means, an image data conversion means, and an adaptive thresholding means. The image data acquisition means acquires image data from a document. The acquired image data is converted into a grayscale image frame by the image data conversion means. In addition, the adaptive thresholding means converts the grayscale image frame into a bi-tonal frame.
REFERENCES:
patent: 5185852 (1993-02-01), Mayer
patent: 5889885 (1999-03-01), Moed et al.
patent: 6728391 (2004-04-01), Wu et al.
patent: 7003166 (2006-02-01), Abhyankar et al.
patent: 7177476 (2007-02-01), Abhyankar et al.
S. Mori et al, “Optical character recognition”, 1999, John Wiley & Sons, Inc., XP002454531, Section 4.3. “Adaptive thresholding based on topographical image analysis”.
D4: U.U. Sheikh—“Real-time barcode reader using active vision”, Master's thesis, Faculty of Electrical Engineering, Tech. Univ. Malaysia, Oct. 2004.
D5: Li et al.—“A window-based bar code acquisition system”, SPIE vol. 2181 Document recognition, pp. 125-132, Feb. 9, 1994, XP000642511.
Couso Jose L
Goepel James E.
Unisys Corporation
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