OPTIMIZATION METHODS FOR THE INSERTION, PROTECTION, AND DETECTION OF DIGITAL WATERMARKS IN DIGITIZED DATA
First Claim
1. A method of detecting a watermark message comprising:
- identifying, with a processor, signal characteristics suitable for embedding one or more bits of a watermark message within a signal;
using a watermarking key to detect said watermark message from the identified signal characteristics.
3 Assignments
0 Petitions
Accused Products
Abstract
The implementations of digital watermarks can be optimally suited to particular transmission, distribution and storage mediums given the nature of digitally-sampled audio, video and other multimedia works. Watermark application parameters can be adapted to the individual characteristics of a given digital sample stream. Watermark information can be either carried in individual samples or in relationships between multiple samples, such as in a waveform shape. More optimal models may be obtained to design watermark systems that are tamper-resistant given the number and breadth of existent digitized sample options with different frequency and time components. The highest quality of a given content signal may be maintained as it is mastered, with the watermark suitably hidden, taking into account usage of digital filters and error correction. The quality of the underlying content signals can be used to identify and highlight advantageous locations for the insertion of digital watermarks. The watermark is integrated as closely as possible to the content signal, at a maximum level to force degradation of the content signal when attempts are made to remove the watermarks.
108 Citations
16 Claims
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1. A method of detecting a watermark message comprising:
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identifying, with a processor, signal characteristics suitable for embedding one or more bits of a watermark message within a signal; using a watermarking key to detect said watermark message from the identified signal characteristics. - View Dependent Claims (2, 3)
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4. An article of manufacture comprising a machine readable medium, having thereon stored instructions adapted to be executed by a processor, which instructions when executed result in a process comprising:
identifying signal characteristics within a signal that are signal characteristics are suitable for embedding one or more bits of a watermark message;
using a watermarking key to detect the watermark message from the identified signal characteristics.
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5. An article of manufacture comprising a machine readable medium, having thereon stored instructions adapted to be executed by a processor, which instructions when executed result in a process comprising:
identifying signal characteristics within a signal, which signal characteristics are suitable for embedding one or more bits of a watermark message;
using a watermarking key to detect the watermark message from the identified signal characteristics.
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6. A method of decoding a watermark message from a signal, comprising:
analyzing said signal to identify signal features within said signal that are suitable for embedding one or more bits of a watermark message; and
decoding a watermark message from said signal using said signal features identified by the analyzing step.
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7. An article of manufacture comprising a machine readable medium, having thereon stored instructions adapted to be executed by a processor, which instructions when executed result in a process comprising:
identifying signal characteristics within a signal that are suitable for embedding one or more bits of a watermark message;
using a watermark key to embed the watermark message into the identified signal characteristics.
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8. A method of embedding a watermark message comprising:
identifying, with a processor, signal characteristics within a signal that are suitable for embedding one or more bits of a watermark message;
using a watermark key to embed the watermark message into the identified signal characteristics.- View Dependent Claims (9, 10)
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11. An article of manufacture comprising a machine readable medium, having thereon stored instructions adapted to be executed by a processor, which instructions when executed result in a process comprising:
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identifying signal features capable of carrying one or more bits of a watermark message within a signal, using a perceptual model; and analyzing at least a portion of the signal to determine at least a portion of the watermark message. - View Dependent Claims (12, 14)
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13. A method of determining at least a portion of the watermark message comprising:
identifying, using a processor, signal features capable of carrying one or more bits of a watermark message within a signal, using a perceptual model; and
analyzing, using said processor, at least a portion of the signal to determine at least a portion of the watermark message.- View Dependent Claims (15, 16)
Specification
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- Resources
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Current AssigneeWistaria Trading Inc.
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Original AssigneeWistaria Trading Inc.
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InventorsMOSKOWITZ, SCOTT, Cooperman, Marc
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current382/100
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CPC Class CodesG06T 1/0028 Adaptive watermarking, e.g....G06T 1/005 Robust watermarking, e.g. a...G06T 1/0092 Payload characteristic dete...G06T 2201/0064 for copy protection or copy...G06T 2201/0065 Extraction of an embedded w...H04K 1/00 Secret communicationH04L 2209/08 Randomization, e.g. dummy o...H04L 2209/34 Encoding or coding, e.g. Hu...H04L 2209/608 WatermarkingH04N 1/32149 Methods relating to embeddi...H04N 1/32187 with selective or adaptive ...H04N 1/32229 with selective or adaptive ...H04N 1/3232 Robust embedding or waterma...H04N 21/23892 involving embedding informa...H04N 21/8358 involving watermark protect...H04N 2201/3233 of authentication informati...H04N 2201/327 which are undetectable to t...
