Patent Number: 7,827,171

Title: Copy detection using contour analysis

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.

Inventors: Brosseau; William A. (Stratford, CT), Haas; Bertrand (New Haven, CT), Zeller; Claude (Shelton, CT)

Assignee: Pitney Bowes Inc.

International Classification: G06F 7/00 (20060101); G06F 17/30 (20060101)

Expiration Date: 2019-11-02 0:00:00