Method and apparatus for embedding auxiliary information within original data

• US 8,611,589 B2
• Filed: 09/27/2011
• Issued: 12/17/2013
• Est. Priority Date: 09/25/1998
• Status: Expired due to Fees

• Current Assignee: Digimarc Corporation
• Original Assignee: Digimarc Corporation
• Inventors: Levy, Kenneth L.
• Primary Examiner(s): Kassa, Yosef
• Application Number:
  US13/246,534
• Publication Number:
  US 20120134528A1
• Time in Patent Office: 812 Days
• Field of Search: 382/100, 382/232, 382/235, 382/243, 713/176, 713/179
• US Class Current: 382/100
• CPC Class Codes: G06T 1/0028 Adaptive watermarking, e.g. Human Visual System [HVS]-based watermarking
• CPC Class Codes: G06T 1/005 Robust watermarking, e.g. average attack or collusion attack resistant
• CPC Class Codes: G06T 2201/0051 Embedding of the watermark in the spatial domain
• CPC Class Codes: G06T 2201/0083 whereby only watermarked image required at decoder, e.g. source-based, blind, oblivious
• CPC Class Codes: H04N 1/32203 Spatial or amplitude domain methods H04N1/32309 takes precedence
• CPC Class Codes: H04N 1/32208 involving changing the magnitude of selected pixels, e.g. overlay of information or super-imposition H04N1/32219, H04N1/32224 take precedence
• CPC Class Codes: H04N 1/32229 with selective or adaptive application of the additional information, e.g. in selected regions of the image H04N1/32213 takes precedence
• CPC Class Codes: H04N 2201/327 which are undetectable to the naked eye, e.g. embedded codes

Abstract

This patent application is generally related to watermarking and steganography. One claim recites a method of transmarking an audio or video signal previously embedded with a first digital watermark using a first digital watermark embedding method. The method includes: utilizing a programmed electronic processor, decoding the first digital watermark from the audio or video signal; converting the audio or video signal into a different form; and utilizing a programmed electronic processor, embedding decoded message information from the first digital watermark into a second digital watermark in the different form such that the second digital watermark is adapted to robustness or perceptibility parameters associated with the different form. Of course, other combinations and claims are provided as well.

Claims

1. A method comprising:

obtaining a media signal; and

utilizing a processor programmed, i) decoding a first signal hidden in a media signal, the media signal being altered with the first signal using a first process; and

ii) hiding information from the first signal into the media signal using a second process that is different than the first process before the media signal undergoes a transformation process, such that the information is hidden to survive the transformation process.

2. An electronic processor programmed to perform the method of claim 1.

3. A non-transitory computer readable medium comprising instructions stored thereon to cause a processor to perform the method of claim 1.

4. A method of transmarking an audio or video signal previously embedded with a first digital watermark using a first digital watermark embedding method, comprising:

utilizing a programmed electronic processor, decoding the first digital watermark from the audio or video signal;

converting the audio or video signal into a different form;

utilizing a programmed electronic processor, embedding decoded message information from the first digital watermark into a second digital watermark in the different form such that the second digital watermark is adapted to robustness or perceptibility parameters associated with the different form.

5. An electronic processor programmed to perform the method of claim 4.

6. A non-transitory computer readable medium comprising instructions stored thereon to cause a processor to perform the method of claim 4.

7. An apparatus comprising:

memory for buffering a media signal; and

a processor programmed for;

i) decoding a first signal hidden in a media signal, the media signal being altered with the first signal using a first process; and

ii) hiding information from the first signal into the media signal using a second process that is different than the first process before the media signal undergoes a transformation process, such that the information is hidden to survive the transformation process.