Noise influenced watermarking methods and apparatus
First Claim
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1. A method comprising:
- determining one or more noise characteristics of a device, wherein the one or more noise characteristics comprise fixed pattern noise characteristics, wherein the fixed pattern noise characteristics result from a predetermined pattern corresponding to an orientation component, and wherein the orientation component comprises a set of impulse functions in a transform domain each with a pseudorandom phase;
influencing a steganographic embedding process associated with the device by guiding or masking embedding locations based at least upon the fixed pattern noise characteristics; and
steganographically embedding, using a processor, plural-bit auxiliary data in host content handled or processed by the device according to the influenced steganographic embedding process.
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Abstract
The present disclosure describes, e.g., methods, system and apparatus for steganographically encoding information in image or video data. One claim recites a method including: determining one or more noise characteristics of a device; based at least on the one or more noise characteristics, influencing a steganographic embedding process associated with the device; and using a programmed electronic processor, steganographically embedding plural-bit auxiliary data in host content handled or processed by the device according to the influenced steganographic embedding process. Of course, other claims are provided too.
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Citations
20 Claims
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1. A method comprising:
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determining one or more noise characteristics of a device, wherein the one or more noise characteristics comprise fixed pattern noise characteristics, wherein the fixed pattern noise characteristics result from a predetermined pattern corresponding to an orientation component, and wherein the orientation component comprises a set of impulse functions in a transform domain each with a pseudorandom phase; influencing a steganographic embedding process associated with the device by guiding or masking embedding locations based at least upon the fixed pattern noise characteristics; and steganographically embedding, using a processor, plural-bit auxiliary data in host content handled or processed by the device according to the influenced steganographic embedding process. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A non-transitory computer readable medium having instructions stored thereon that, if executed by a computing device, cause the computing device to perform operations comprising:
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determining one or more noise characteristics of a device, wherein the one or more noise characteristics comprise fixed pattern noise characteristics, wherein the fixed pattern noise characteristics result from a predetermined pattern corresponding to an orientation component, and wherein the orientation component comprises a set of impulse functions in a transform domain each with a pseudorandom phase; influencing a steganographic embedding process associated with the device by guiding or masking embedding locations based at least upon the fixed pattern noise characteristics; and steganographically embedding plural-bit auxiliary data in host content handled or processed by the device according to the influenced steganographic embedding process. - View Dependent Claims (9, 10, 11)
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12. An apparatus comprising:
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electronic memory configured to store noise characteristics associated with a device, wherein the noise characteristics comprise fixed pattern noise characteristics, wherein the fixed pattern noise characteristics result from a predetermined pattern corresponding to an orientation component, and wherein the orientation component comprises a set of impulse functions in a transform domain each with a pseudorandom phase; and a processor configured to; influence a steganographic embedding process associated with the device by guiding or masking embedding locations based at least on the fixed pattern noise characteristics stored in the electronic memory; and steganographically embed plural-bit auxiliary data in host content handled or processed by the device according to the influenced steganographic embedding process. - View Dependent Claims (13, 14, 15, 16, 17)
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18. An apparatus comprising:
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means for storing noise characteristics associated with a device, wherein the noise characteristics comprise fixed pattern noise characteristics, wherein the fixed pattern noise characteristics result from a predetermined pattern corresponding to an orientation component, and wherein the orientation component comprises a set of impulse functions in a transform domain each with a pseudorandom phase; means for influencing a steganographic embedding process associated with the device by guiding or masking embedding locations based at least on the fixed pattern noise characteristics; and means for steganographically embedding plural-bit auxiliary data in host content handled or processed by the device according to the influenced steganographic embedding process. - View Dependent Claims (19, 20)
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Specification