Derivation and quantization of robust non-local characteristics for blind watermarking
First Claim
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1. A method facilitating protection of digital signals, the method comprising:
- partitioning a digital signal into segments;
for one or more segments;
calculating statistics of a segment that are representative of that segment;
quantizing such statistics of a segment;
generating a marked signal approximately equivalent to a combination of the digital signal and the combination of the quantized statistics of the one or more segments.
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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
28 Claims
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1. A method facilitating protection of digital signals, the method comprising:
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partitioning a digital signal into segments;
for one or more segments;
calculating statistics of a segment that are representative of that segment;
quantizing such statistics of a segment;
generating a marked signal approximately equivalent to a combination of the digital signal and the combination of the quantized statistics of the one or more segments. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. One or more computer-readable media having computer-executable instructions that, when executed by a computer, performs acts for facilitating protection of digital signals, the acts comprising:
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pseudorandomly partitioning a digital signal into segments;
for each of a plurality segments;
calculating statistics of a subject segment that are representative of that segment;
quantizing such statistics of the subject segment;
generating a marked signal approximately equivalent to a combination of the digital signal and the combination of the quantized statistics of the plurality segments. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A system for facilitating the protection of digital signals, the system comprising:
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a partitioner configured to segment a digital signal;
a segment-statistics calculator configured to calculate statistics of a segment that are representative of that segment;
a segment quantizer configured to quantize such statistics of a segment a signal marker configured to generate a marked signal approximately equivalent to a combination of the digital signal and the combination of the quantized statistics of the one or more segments. - View Dependent Claims (27, 28)
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Specification