Derivation and quantization of robust non-local characteristics for blind watermarking
First Claim
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1. A computer implemented method for facilitating the protection of digital signals, the method comprisingobtaining a digital signal;
- obtaining a watermark;
using guantization index modulation (QIM), watermarking the signal with the 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.
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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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6 Claims
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1. A computer implemented method for facilitating the protection of digital signals, the method comprising
obtaining a digital signal; -
obtaining a watermark; using guantization index modulation (QIM), watermarking the signal with the 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 computer implemented method for facilitating the protection of digital signals, the method comprising
obtaining a digital signal, the signal being composed of multiple seaments; -
obtaining a watermark; using quantization index modulation (QIM), watermarking the signal with the watermark, wherein such QIM utilizes non-local characteristics of the signal, the non-local characteristics comprises statistics representative of a plurality of segments of the digital signal; and wherein the non-local characteristics comprise statistics representative of a plurality of pseudorandomly sized segments of the digital signal. - View Dependent Claims (4)
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5. One or more tangible computer readable media having computer-executable instructions that, when executed by a computer, perform the acts comprising:
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obtaining a digital signal; obtaining a watermark; using quantization index modulation (QIM), watermarking the signal with the watermark, wherein such QIM utilizes non-local characteristics of the signal and the non-local characteristics are representative characteristics of more than a single element of a 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