Derivation and quantization of robust non-local characteristics for blind watermarking
First Claim
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1. A method for facilitating the protection of digital signals, the method comprising obtaining a digital signal;
- obtaining a watermark;
using quantization index modulation (QIM), watermarking the signal with the watermark, wherein such QIM is based upon non-local characteristics 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
22 Claims
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1. A method for facilitating the protection of digital signals, the method comprising
obtaining a digital signal; -
obtaining a watermark;
using quantization index modulation (QIM), watermarking the signal with the watermark, wherein such QIM is based upon non-local characteristics of the signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for facilitating the protection of digital signals, the method comprising
obtaining a digital signal, the signal being composed of multiple segments; -
obtaining a watermark;
using quantization index modulation (QIM), watermarking the signal with the watermark, wherein such QIM is based upon non-local characteristics of the signal, the non-local characteristics comprises statistics representative of a plurality of segments of the digital signal. - View Dependent Claims (12, 13, 14, 15, 16)
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17. One or more 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 is based upon non-local characteristics of the signal and the non-local characteristics are representative characteristics of more than a single element of a signal. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification