Data processing apparatus and method

Details Data processing apparatus and method Data processing apparatus and method

2007-03-20

2007-03-20

Bella, Matthew C. (Department: 2624)

Image analysis

Applications

C380S201000, C705S057000

Reexamination Certificate

active

10611735

ABSTRACT:
A detecting data processing apparatus determines whether one or more code words of a predetermined set of code words are present in a suspected version of a material item. The apparatus comprises a registration processor operable to associate samples of the suspected version with samples of a copy of the original material item, a recovery processor and a detection processor. The recovery processor is operable to generate a recovered code word by comparing the registered copy of the original and the suspect material items. The detection processor is operable to detect one or more code words from a correlation between the recovered code word and the code words from the set. The registration processor is operable to form at least one reduced-bandwidth-version of the material item and to associate the suspected version and the copy of the material item in accordance with a comparison between the reduced-bandwidth-versions of the suspected version and the original material item.

REFERENCES:
patent: 5664018 (1997-09-01), Leighton
patent: 5710834 (1998-01-01), Rhoads
patent: 1 215 880 (2002-06-01), None
patent: WO 01/94461 (2001-12-01), None

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