Search of similar features representing objects in a large...

Details Search of similar features representing objects in a large... Search of similar features representing objects in a large...

2008-07-15

2008-07-15

Patel, Kanji (Department: 2624)

Image analysis

Image transformation or preprocessing

Image storage or retrieval

C707S793000

Reexamination Certificate

active

10968624

ABSTRACT:
This invention is a method dedicated to pseudo-invariant features retrieval and, more particularly, applied to content-based copy identification. The range of a query is computed during the search according to deviation statistics between original and observed features. This approximate search range is directly mapped onto a Hilbert's space-filling curve allowing an efficient access to the database. Such a method is sublinear in database size and does not suffer from dimensionality problems.

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