公开(公告)号：WO2003081432A1

公开(公告)日：2003-10-02

申请号：PCT/US2002/012677

申请日：2002-04-11

Applicant: PITNEY BOWES INC.

Inventor： ZELLER, Claude ,  MACKAY, Donald, G. ,  KILMARTIN, William ,  BROSSEAU, William, A. ,  EUCHNER, James ,  CORDERY, Robert, A.

IPC: G06F11/30

CPC classification number: G06T1/0042 ,  G06K7/1417 ,  G06K19/06037 ,  G06T2201/0051

Abstract: A method that detects when an image is copied or scanned in order to reduce the production of fraudulent images. The invention allows an inspector to conduct an analysis of an image with a simple set of tools on site without the need to check a remote database through a network and look for duplicate images. This minimizes the infrastructure and cost required to implement the system. A local inspection can be made by scanning an image and decoding it with relatively inexpensive tools available on site. The invention accomplishes the foregoing by producing a fragile watermark image that produces a noticeable and measurable loss of invention when it is reproduced. The loss of information is due to effects associated with scanning and printing processes.

Abstract translation: 检测何时复制或扫描图像以减少欺诈图像的产生的方法。 本发明允许检查员使用现场简单的工具集来对图像进行分析，而不需要通过网络检查远程数据库并查找重复的图像。 这将实现系统所需的基础架构和成本降至最低。 可以通过扫描图像进行本地检查，并使用现场可用的相对便宜的工具进行解码。 本发明通过产生脆弱水印图像来实现上述，当它被再现时产生显着和可测量的发明损失。 信息的丢失是由于与扫描和打印过程相关的影响。