The present invention relates to linking documents through digital watermarking. In one implementation, an identification document is embedded with a first digital watermark. The first digital watermark includes a first identifier. Before issuing a second document, like a boarding pass or ticket, the first identifier is extracted from the identification document. The first identifier is manipulated or altered to produce a second identifier. The second identifier, however, remains related to the first identifier. The second document is embedded with a second digital watermark including the second identifier. Thus, the identification document and the second document are linked through the first and second watermark identifiers.
RELATED APPLICATION DATA
The present application is a continuation in part of U.S. patent application Ser. No. 10/094,593, filed Mar. 6, 2002. The present application also claims the benefit of U.S. Provisional Application No. 60/356,881, filed Feb. 12, 2002.
The present invention also relates to assignee's U.S. Pat. No. 6,332,031 (issued on Dec. 18, 2001).
Each of the above-mentioned patent documents is herein incorporated by reference.
An image processing apparatus includes a feature value generating unit configured to generate a feature value of an image of a first page; and an embedding unit configured to embed the feature value of the image of the first page generated by the feature value generating unit in an image of a second page, which is different from the first page.
An automated teller machine (10) comprises a fascia (12) having a check entry/exit slot (56), and a check processing module (60) for processing checks entered via the slot (56). The terminal (10) includes a control means (86), biometric data capture means (112, 156, 158), a printer (74) and a check transport mechanism (70) for transporting checks between the slot (56) and the printer (74). The control means is arranged to cause the printer (74) to print a representation of a biometric characteristic of a user onto a check during an attempt to deposit the check in the terminal (10).
A system that facilitates document retrieval and/or indexing is provided. A component receives an image of a document, and a search component searches data store(s) for a match to the document image. The match is performed over word-level topological properties of images of documents stored in the data store(s).
A computer-implemented system for digital ink revisions is provided. The system comprises an annotation module that recognizes a handwritten annotation in an image of a document. The system further comprises a command module that executes a command associated with the recognized handwritten annotation. Methods for using the system are also provided.
A computer-implemented system for obtaining ink annotations from paper comprises a comparator that compares an initial electronic version of a document with an electronic image of an annotated version of the document to identify a handwritten annotation. The system also includes an annotation lifter that extracts the handwritten annotation from the electronic image and converts the handwritten annotation into a computer-usable form. Methods for using the system are also provided.
