Forensic marking using a common customization function
First Claim
1. A method for producing a marked content, comprising:
- receiving customization information and a plurality of tributaries, the plurality of tributaries having been produced by pre-processing an original content or content element; and
processing two or more of the received tributaries in accordance with the customization information using a common customization function to produce a marked content, whereinthe customization information and the plurality of the tributaries are sufficient for producing the marked content with any of a multiplicity of mark messages, without a further need for utilizing said original content, andthe customization information comprises instructions to the common customization function as to how the received tributaries should be combined to produce a marked content that comprises one or more of the mark messages.
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Abstract
Methods, systems, and apparatus are disclosed which enable flexible insertion of forensic watermarks into a digital content signal using a common customization function. The common customization function flexibly employs a range of different marking techniques that are applicable to a wide range of forensic marking schemes. These customization functions are also applicable to pre-processing and post-processing operations that may be necessary for enhancing the security and transparency of the embedded marks, as well as improving the computational efficiency of the marking process. The common customization function supports a well-defined set of operations specific to the task of forensic mark customization that can be carried out with a modest and preferably bounded effort on a wide range of devices. This is accomplished through the use of a generic transformation technique for use as a “customization” step for producing versions of content forensically marked with any of a multiplicity of mark messages.
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Citations
20 Claims
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1. A method for producing a marked content, comprising:
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receiving customization information and a plurality of tributaries, the plurality of tributaries having been produced by pre-processing an original content or content element; and processing two or more of the received tributaries in accordance with the customization information using a common customization function to produce a marked content, wherein the customization information and the plurality of the tributaries are sufficient for producing the marked content with any of a multiplicity of mark messages, without a further need for utilizing said original content, and the customization information comprises instructions to the common customization function as to how the received tributaries should be combined to produce a marked content that comprises one or more of the mark messages. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device, comprising:
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a receiver implemented at least partly in hardware and configured to receive customization information and a plurality of tributaries, the plurality of tributaries and customization information having been produced by preprocessing an original content or content element; and a common customization component implemented at least partly in hardware and configured to process two or more of the received tributaries in accordance with the customization information to produce a marked content, wherein; the customization information and the plurality of the tributaries are sufficient for producing the marked content with any of a multiplicity of mark messages, without a further need for utilizing said original content, and the customization information comprises instructions to the common customization component as to how the received tributaries should be combined to produce a marked content that comprises one or more of the mark messages. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A device, comprising:
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a processor, and a memory comprising processor executable code, the processor executable code, when executed by the processor, configuring the device to; receive customization information and a plurality of tributaries, the plurality of tributaries having been produced by pre-processing an original content or content element; and process two or more of the received tributaries in accordance with the customization information using a common customization function to produce a marked content, wherein the customization information and the plurality of the tributaries are sufficient for producing the marked content with any of a multiplicity of mark messages, without a further need for utilizing said original content, and the customization information comprises instructions to the common customization function as to how the received tributaries should be combined to produce a marked content that comprises one or more of the mark messages.
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20. A computer program product, embodied on a non-transitory computer readable medium, comprising:
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program code for receiving customization information and a plurality of tributaries, the plurality of tributaries having been produced by pre-processing an original content or content element; and program code for processing two or more of the received tributaries in accordance with the customization information using a common customization function to produce a marked content, wherein the customization information and the plurality of the tributaries are sufficient for producing the marked content with any of a multiplicity of mark messages, without a further need for utilizing said original content, and the customization information comprises instructions to the common customization function as to how the received tributaries should be combined to produce a marked content that comprises one or more of the mark messages.
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Specification