Derivation and quantization of robust non-local characteristics for blind watermarking
First Claim
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1. A computing apparatus for facilitating the protection of digital signals comprising:
- a processor; and
a memory configured to maintain one or more module executable on the processor to;
obtain a digital signal; and
using quantization index modulation (QIM), detect whether the signal includes a watermark, wherein such QIM utilizes non-local characteristics of the signal andwherein the non-local characteristics comprise statistics representative of one or more pseudorandomly dimensioned segments of the signal.
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Abstract
An implementation of a technology is described herein for deriving robust non-local characteristics and quantizing such characteristics for blind watermarking of a digital good.
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Citations
6 Claims
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1. A computing apparatus for facilitating the protection of digital signals comprising:
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a processor; and a memory configured to maintain one or more module executable on the processor to; obtain a digital signal; and using quantization index modulation (QIM), detect whether the signal includes a watermark, wherein such QIM utilizes non-local characteristics of the signal and wherein the non-local characteristics comprise statistics representative of one or more pseudorandomly dimensioned segments of the signal. - View Dependent Claims (2)
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3. A system for facilitating the protection of digital signals comprising:
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means for obtaining a digital signal;
the signal being composed of multiple segments;means for detecting whether the signal includes a watermark using quantization index modulation (QIM), wherein such QIM utilizes non-local characteristics of the signal and wherein the non-local characteristics comprise statistics representative of one or more pseudorandomly dimensioned segments of the signal. - View Dependent Claims (4)
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5. One or more computer readable media having computer executable instruction that, when executed by a computer, perform acts comprising:
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obtaining a digital signal;
the signal being composed of multiple segments;using quantization index modulation, detecting whether the signal includes a watermark, wherein such QIM utilizes non-local characteristics of the signal and wherein the non-local characteristics comprise statistics representative of one or more pseudorandomly dimensioned segments of the signal. - View Dependent Claims (6)
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Specification