Image management system and methods using digital watermarks

• US 7,098,931 B2
• Filed: 05/15/2001
• Issued: 08/29/2006
• Est. Priority Date: 03/05/2001
• Status: Expired due to Term

• Current Assignee: Digimarc Corporation
• Original Assignee: Digimarc Corporation
• Inventors: Rhoads, Geoffrey B., Clements, Lorie, Lofgren, Neil A., Patterson, Phillip R.
• Primary Examiner(s): Tung, Kee M.
• Assistant Examiner(s): WANG, JIN CHENG
• Application Number:
  US09/858,336
• Publication Number:
  US 20020124024A1
• Time in Patent Office: 1,932 Days
• Field of Search: 382/232, 382/100, 709/217, 713/200, 713/170, 713/176, 345/634
• US Class Current: 345/634
• CPC Class Codes: G01C 11/00 Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
• CPC Class Codes: G06F 21/6209 to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
• CPC Class Codes: G06T 1/0021 Image watermarking

Abstract

Digital watermarking technology is used in an image management system. Images are uniquely identified by digital watermarks. The images are stored so as to be indexed according to their unique identifiers. In the preferred embodiment, related images are linked together by the unique watermark identifier. The unique watermark identifiers are also used to manage metadata, and provide forensic tracking.

Claims

1. A method for managing images, the images including a first image comprising a first identifier steganographically embedded therein, said method comprising:

retrieving a copy of the first image from an image database;

altering the copy of the first image to provide a second image;

steganographically embedding a second identifier in the second image; and

providing the steganographically embedded second image to the image database for storage, wherein the image database associates the second identifier with the first identifier so as to associate the first image and the second image.

2. The method according to claim 1, further comprising removing the first identifier from the second image.

3. The method according to claim 1, further comprising altering the first identifier in the second image.

4. The method according to claim 1, further comprising storing information related to the first image in the database.

5. The method according to claim 4, wherein the related information comprises at least one of metadata, location, date, permission level, security access levels, analyst comments, notes, files, and past usage information.

6. The method according to claim 5, wherein the database comprises a plurality of databases.

7. A system comprising:

a first user terminal;

a second user terminal;

a database, wherein the first user terminal and the second user terminal are in communication, and the first user terminal and the second user terminal are each in communication with the database; and

a gatekeeper to regulate the flow of at least a first image between the first user terminal and the second user terminal, wherein the first image comprises at least a first digital watermark including a first identifier, said gatekeeper to determine a security level associated with the first image, compare the first image security level with a user security level, and to allow access by the second user terminal to the first image based on a result of the comparison, wherein said gatekeeper comprises or communicates with a digital watermark decoder to decode the digital watermark to determine the first identifier, and to interrogate the database with the first identifier to retrieve the security level.

8. The system according to claim 7, wherein the user security level comprises at least one of a security level for a user and a security level for a user terminal.

9. The system according to claim 7, wherein said gatekeeper records in the database a transmission of the first image from the first user terminal to the second user terminal.

10. The system of claim 7, further comprising a communications server, wherein the first user terminal and the second user terminal are in communication via said communications server.

11. A system comprising:

a first user terminal;

a second user terminal;

a database, wherein the first user terminal and the second user terminal are in communication, and the first user terminal and the second user terminal are each in communication with the database; and

a gatekeeper to regulate the flow of at least a first image between the first user terminal and the second user terminal, wherein the first image comprises at least a first digital watermark including a first identifier, said gatekeeper to determine a security level associated with the first image, compare the first image security level with a user security level, and to allow access by the second user terminal to the first image based on a result of the comparison, wherein said first image digital watermark includes security level data, and wherein said gatekeeper comprises or communicates with a digital watermark decoder to decode the digital watermark to determine the security level data.

12. The system according to claim 11, wherein the user security level comprises at least one of a security level for a user and a security level for a user terminal.

13. The system according to claim 11, wherein said gatekeeper records in the database a transmission of the first image from the first user terminal to the second user terminal.

14. The system of claim 11, further comprising a communications server, wherein the first user terminal and the second user terminal are in communication via said communications server.

15. An apparatus comprising:

electronic processing circuitry; and

memory,

said memory comprising records stored therein, the records comprising a plurality of images, the plurality of images including a first image and a second image,

wherein the first image includes a first identifier steganographically embedded therein, and

wherein the second image includes a second identifier steganographically embedded therein,

wherein the second image is derived from the first image, and

wherein the second identifier is associated with the first identifier so that the first image and the second image are associated with one another.