Multi-stage watermarking process and system

• US 7,184,571 B2
• Filed: 06/02/2005
• Issued: 02/27/2007
• Est. Priority Date: 12/29/2000
• Status: Expired due to Term

• Current Assignee: ContentGuard Holdings, Inc. (Pendrell Corporation)
• Original Assignee: Contentgaurd Holdings Incorporated
• Inventors: Wang, Xin, Okamoto, Steve Atsushi, Ishigo, Nancy Lynn, Lear, Russell Robert
• Primary Examiner(s): Wu; Jingge
• Assistant Examiner(s): Tabatabai; Abolfazl
• Application Number:
  US11/142,256
• Publication Number:
  US 20050280876A1
• Time in Patent Office: 635 Days
• Field of Search: 382/100, 382/232, 382/240, 380/51.54, 380/201, 380/210, 380/252, 380/287, 380/51, 380/54, 713/176, 713/179, 370522-529, 283/72, 283 74- 81, 283/85, 283/93, 283/113, 283/901, 283/902, 348/461, 348/463, 386/94, 725/9, 725/20, 725/22, 705/57, 705/58, 358/3.28
• US Class Current: 382/100
• CPC Class Codes: G06T 1/0021 Image watermarking
• CPC Class Codes: H04N 1/32149 Methods relating to embedding, encoding, decoding, detection or retrieval operations
• CPC Class Codes: H04N 1/32315 Selecting a particular method from amongst a plurality of methods
• CPC Class Codes: H04N 2201/3236 Details of authentication information generation

Abstract

A multi-stage watermarking system and process that creates a watermark specification which describes how to generate a watermark, generates a template specification which describes how to merge the watermark into a target document, generates the watermark based on the watermark specification, and merges the watermark into the target document based on the template specification to provide a watermarked document.

Claims

1. A method for binding dynamic information in a watermark comprising the steps of:

creating a dynamic content specification that describes how to specify, generate, embed, render, or merge the watermark in a target document at different stages of the life cycle of the target document;

generating the watermark based on the dynamic content specification; and

merging the watermark into the target document based on the dynamic content specification to provide a watermarked document.

2. The method of claim 1, wherein the dynamic content specification created is described using a watermark specification language including grammar elements that identify the dynamic content specification, identify a specific watermarking technology to be used, and identify a target object in which the watermark is generated.

3. The method of claim 1, further comprising generating a template specification that describes how to merge the watermark into the target document.

4. The method of claim 3, wherein the template specification generated is described using a watermark specification language including grammar elements that identify a version of the watermark specification language, provide a list of a plurality of watermark specifications to be used, and provide a mapped list of how a plurality of watermarks associated with the plurality of watermarks is to be merged with the target document.

5. The method of claim 1, wherein the dynamic information includes at least one content information.

6. The method of claim 5, wherein the at least one content information changes during the life cycle of the target document.

7. The method of claim 5, wherein the content information changes in accordance with the passage of time.

8. The method of claim 5, wherein the content information changes in accordance with users that access the target document.

9. The method of claim 5, wherein the dynamic content information changes in accordance with fights associated to the target document.

10. The method of claim 5, wherein the content information changes in accordance with the application used to generate the watermark.

11. The method of claim 1, further comprising the step of recovering the watermark, including recouping the dynamic information from the watermarked document.

12. The method of claim 1, wherein the watermarked document provided by merging the watermark into the target document is at least one of correspondence, books, magazines, journals, newspapers, forms, software, photographs, images, audio clips, video clips, multimedia presentations, and multimedia products.

13. The method of claim 1, wherein the dynamic content specification describes content to be included in the watermark.

14. The method of claim 13, wherein the watermark has a plurality of content information associated therewith.

15. The method of claim 13, wherein the content to be included in the watermark is application-specific.

16. The method of claim 1, wherein the step of generating the watermark based on the dynamic content specification further includes checking the size of content information in the watermark specification against the data capacity of the watermark.

17. The method of claim 16, wherein the checking the size of content further includes:

determining the size of the content information;

determining the data capacity of the watermark;

comparing the determined size of the content information against the data capacity of the watermark; and

truncating the content information if the determined size of the content information exceeds the data capacity of the watermark.

18. The method of claim 1, wherein the step of creating the dynamic content specification is performed on a first computer system and the step of generating the watermark based on the dynamic content specification and the dynamic content information is performed on a second computer system.

19. A method for binding dynamic information in a watermark comprising the steps of:

obtaining the watermark wherein the watermark is based on a dynamic content specification that describes how to specify, generate, embed, render, or merge a watermark in a target document at a stage of the life cycle of the target document;

merging the watermark into the target document based on the dynamic content specification to provide a watermarked document.

20. The method of claim 19, wherein the dynamic content specification created is described using a watermark specification language including grammar elements that identify the watermark specification, identify a specific watermarking technology to be used, and identify a target object in which the watermark is generated.

21. The method of claim 19, further comprising obtaining a template specification that describes how to merge the watermark into a target document.

22. The method of claim 21, wherein the template specification obtained is described using a watermark specification language including grammar elements that identify a version of the watermark specification language, provide a list of a plurality of watermark specifications to be used, and provide a mapped list of how a plurality of watermarks associated with the plurality of watermarks is to be merged with the target document.

23. The method of claim 19, wherein the dynamic information includes at least one content information.

24. The method of claim 23, wherein the content information changes during the life cycle of the target document.

25. The method of claim 23, wherein the content information changes in accordance with the passage of time.

26. The method of claim 23, wherein the content information changes in accordance with users that access the target document.

27. The method of claim 23, wherein the content information changes in accordance with rights granted related to the target document.

28. The method of claim 23, wherein the content information changes in accordance with the application used to generate the watermark.

29. The method of claim 23, further comprising the step of recovering the watermark, including recouping the dynamic content information from the watermarked document.

30. The method of claim 19, wherein the watermarked document provided by merging the watermark into the target document is at least one of correspondence, books, magazines, journals, newspapers, forms, software, photographs, images, audio clips, video clips, multimedia presentations, and multimedia products.

31. The method of claim 23, wherein the content information describes content to be included in the watermark.

32. The method of claim 31, wherein the watermark has a plurality of content information associated therewith.

33. The method of claim 31, wherein the content to be included in the watermark is application-specific.

34. The method of claim 19, wherein the step of merging the watermark based on the dynamic content specification includes:

determining the size of the content information;

determining the data capacity of the watermark;

comparing the determined size of the content information against the data capacity of the watermark; and

truncating the content information if the determined size of the content information exceeds the data capacity of the watermark.

35. The method of claim 19, wherein the step of obtaining the watermark is performed on a first computer system and the step of merging the watermark into the target document is performed on a second computer system.

36. A method for creating a watermark in a target object at different stages of the target object'"'"'s life cycle, the method comprising:

describing application-specific content for binding into the watermark, the application-specific content being generated by multiple applications and including application identification information;

specifying static content for binding into the watermark, the static content determined by the time the target object is created;

specifying dynamic content for binding into the watermark, the dynamic content determined by the time of at least one of generating the watermark and creating a watermarked document; and

creating the watermark based upon the merging of the application-specific content, the static content and the dynamic content.

37. The method of claim 36, wherein the watermarks are created based on a watermark specification using a watermark specification language tat includes grammar elements that identify the watermark specification, identify a specific watermarking technology to be used, and identify a target object in which the watermark is generated.

38. The method of claim 37, wherein the watermarks are created based on a template specification using a watermark specification language that includes grammar elements that identify a version of the watermark specification language, provide a list of watermark specifications to be used, and provide a mapped list of how a watermark is to be merged with the target object.

39. The method for creating a watermark of claim 37, wherein identifying a specific watermarking technology to be used includes identifying a mark technology specification to determine the manner in which the watermark is created based upon the merging of the application-specific content, the static content, and the dynamic content.

40. The method for creating a watermark of claim 37, further comprising identifying multiple marking technologies that are interpreted by a mark specification interpreter to determine the manner in which the watermark is created based upon the merging of the application-specific content, the static content, and the dynamic content.

41. The method for creating a watermark of claim 37, wherein identifying a specific watermarking technology to be used includes identifying a merge technology specification to determine the manner in which the watermark is created based upon the merging of the application-specific content, the static content, and the dynamic content.

42. The method for creating a watermark of claim 37, wherein identifying a specific watermarking technology to be used includes identifying a merge technology specification to determine the manner in which the watermark is created based upon the merging of the application-specific content, the static content, and the dynamic content.

43. A system for binding dynamic information into a watermark comprising:

means for creating a dynamic content specification that describes how to specify, generate, embed, render, or merge the watermark in a target document at different stages of the life cycle of the target document;

means for generating the watermark based on the dynamic content specification; and

means for merging the watermark into the target document based on the dynamic content specification to provide a watermarked document.

44. A computer readable medium with computer-executable instructions for binding dynamic information in a watermark, the medium comprising:

instructions for creating a dynamic content specification that describes how to specify, generate, embed, render, or merge a watermark in a target document at different stages of the life cycle of the target document;

instructions for generating the watermark based on the dynamic content specification; and

instructions for merging the watermark into the target document based on the dynamic content specification to provide a watermarked document.

45. A system for binding dynamic information in a watermark comprising:

means for obtaining the watermark wherein the watermark is based on a dynamic content specification that describes how to specify, generate, embed, render, or merge a watermark in a target document at different stages of the life cycle of the target document; and

means for merging the watermark into the target document based on the dynamic content specification to provide a watermarked document.

46. A computer readable medium with computer-executable instructions for binding dynamic information in a watermark comprising the steps of:

instructions for obtaining the watermark wherein the watermark is based on a dynamic content specification that describes how to specify, generate, embed, render, or merge a watermark in a target document at different stages of the life cycle of the target document; and

instructions for merging the watermark into the target document based on the dynamic content specification to provide a watermarked document.

47. A system for creating a digital watermark in a target object at different stages of the target object'"'"'s life cycle, the system comprising:

means for describing application-specific content for binding into the digital watermarks, the application-specific content being generated by multiple applications and including application identification information;

means for specifying static content for binding into the digital watermark, the static content determined by the time the target object is created;

means for specifying dynamic content for binding into the digital watermark, the dynamic content determined by the time of at least one of generating the watermark and creating a watermarked document; and

means for creating the watermark based upon the merging of the application-specific content, the static content, and the dynamic content.

48. A computer readable medium with computer-executable instructions for creating a digital watermark in a target object at different stages of the target object'"'"'s life cycle, the medium comprising:

instructions for describing application-specific content for binding to the dynamic digital watermarks, the application-specific content being generated by multiple applications and including application identification information;

instructions for specifying static content for binding to the dynamic digital watermark, the static content determined by the time the target object is created;

instructions for specifying dynamic content for binding to the dynamic digital watermark, the dynamic content determined by the time of at least one of generating the watermark and creating a watermarked document; and

instructions for creating the watermark based upon the merging of the application-specific content, the static content, and the dynamic content.