Copy detection using contour analysis

Details Copy detection using contour analysis Copy detection using contour analysis

2005-09-30

2010-11-02

Rones, Charles (Department: 2164)

Data processing: database and file management or data structures

Database and file access

Post processing of search results

C707S727000

Reexamination Certificate

active

07827171

ABSTRACT:
Systems and methods for detecting copies of images are described. In one example, the system utilizes a threshold based contour analysis technique that uses known contour ratios to determine if a scan of an image or document being tested is a first generation scan of an original or of a higher generation copy. In another example, a method for calibrating the copy detection system for use with a particular printer and scanner in described.

REFERENCES:
patent: 6108703 (2000-08-01), Leighton et al.
patent: 6125213 (2000-09-01), Morimoto
patent: 6381037 (2002-04-01), Balasubramanian et al.
patent: 7158267 (2007-01-01), Chiu
patent: 2002/0040204 (2002-04-01), Dev et al.
patent: 2003/0034992 (2003-02-01), Brown Elliott et al.
patent: 2004/0005245 (2004-01-01), Watson et al.
patent: 2004/0086168 (2004-05-01), Kuwabara
patent: 2004/0135898 (2004-07-01), Zador
patent: 2004/0202382 (2004-10-01), Pilu
patent: 2005/0248972 (2005-11-01), Kondo et al.
patent: 2006/0023970 (2006-02-01), Wang
patent: 2006/0224895 (2006-10-01), Mayer

Affiliated with

Also associated with

Rating

Copy detection using contour analysis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Copy detection using contour analysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Copy detection using contour analysis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4177531