Data content identification

Details Data content identification Data content identification

2011-03-01

2011-03-01

Le, Brian Q (Department: 2624)

Image analysis

Applications

C713S176000, C713S177000, C713S178000, C713S179000, C713S180000, C705S057000, C705S058000, C380S201000, C380S202000, C380S203000, C380S204000, C358S003280

Reexamination Certificate

active

07899205

ABSTRACT:
A method of detecting a version of input data content, there being a plurality of different versions of said data content, in which:said data content is arranged as two or more segments according to a segmentation pattern; andsaid versions of said data content are identifiable by corresponding identification data patterns by which at least some of said segments have respective identification data;said method comprising the steps of:(i) detecting said identification data in respect of said segments of said input data content;(ii) comparing said detected identification data with said identification data patterns corresponding to said different versions of said data content; and(iii) detecting that said input data content comprises at least a contribution from a certain version of said data content if a sum of matches obtained between said detected identification data and said identification data pattern for said certain version exceeds a threshold number.

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