US7430302B2
Expired / Lapsed
US
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Covert and robust mark for media identification
Assignee: Thorwirth Neils J
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Filing: 2006-07-19
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Granted: 2008-09-30
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Expires: 2026-07-19
Abstract
Abstract Systems and methods are described for repeatedly embedding information in media that is recoverable by emphasizing subtle variations between the media. In many embodiments perceptual models are used to identify portions of the media in which the embedded information is unlikely to be apparent to a human observer. One embodiment of the invention includes rendering the information in the form of a media, selecting a plurality of portions of media from the carrier media, combining at least part of the rendered media with each of the selected portions of the carrier media to form modified media portions, where the modifications to the modified media portions are not apparent to a human observer and creating a modified carrier medium using the modified media portions.
Inventors
- 👤 Niels Thorwirth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:33
CPC Classifications
G; G06; G06T; G06T1/00; G06T1/0021; G06T1/0028; G06F; G06F21/00; G06T1/005; H; H04; H04N; H04N1/00; H04N1/32; H04N1/32101; H04N1/32144; H04N1/32149; H04N1/32203; H04N1/32229; H04N21/00; H04N21/20; H04N21/23; H04N21/238; H04N21/2389; H04N21/23892; H04N21/40; H04N21/43; H04N21/442; H04N21/44236; H04N21/80; H04N21/83; H04N21/835; H04N21/8358; G06T2201/00; G06T2201/005; G06T2201/0083; G06T2201/0202
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
141 words
A method of imperceptibly and robustly embedding information as a human recognizable image in a video sequence, comprising: rendering the information as a human recognizable image, where the information is visually represented within the human recognizable image; obtaining a plurality of video frames from the video sequence; directly combining at least part of the rendered human recognizable image with each of the plurality of video frames to form modified video frames, where the parts of the rendered human recognizable image are embedded in corresponding embedding positions across the plurality of video frames and can be used to recreate the rendered human recognizable image by combining the plurality of video frames, and the modifications to the video frames are not apparent to a human observer; and thereby creating a modified video sequence containing the human recognizable image, using the modified video frames.
Claim 2
Independent Claim
141 words
A method of imperceptibly and robustly embedding information as a human recognizable image in a video sequence, comprising: rendering the information as a human recognizable image, where the information is visually represented within the human recognizable image; obtaining a plurality of video frames from the video sequence; directly combining at least part of the rendered human recognizable image with each of the plurality of video frames to form modified video frames, where the parts of the rendered human recognizable image are embedded in corresponding embedding positions across the plurality of video frames and can be used to recreate the rendered human recognizable image by combining the plurality of video frames, and the modifications to the video frames are not apparent to a human observer; and thereby creating a modified video sequence containing the human recognizable image, using the modified video frames.
Claim 3
Dependent Claim
16 words
The method of claim 1 further comprising varying the geometry of the rendered human recognizable image.
Claim 4
Dependent Claim
34 words
The method of claim 1 wherein combining parts of the rendered human recognizable image with each of the plurality of video frames includes modifying the rendered human recognizable image according to a perceptual model.
Claim 5
Dependent Claim
24 words
The method of claim 1 wherein the portions of the rendered human recognizable image that are combined with video frames are selected pseudo randomly.
Claim 6
Dependent Claim
28 words
The method of claim 1 wherein a lens is used to combine at least part of the human recognizable image with each of the plurality of video frames.
Claim 7
Dependent Claim
14 words
The method of claim 1 wherein the information comprises metadata related to the media.
Claim 8
Dependent Claim
16 words
The method of claim 1 wherein the information identifies the time and location of video playback.
Claim 9
Dependent Claim
17 words
The method of claim 1 wherein the information identifies the copyright owner or recipient of the media.
Claim 10
Dependent Claim
14 words
The method of claim 1 wherein the information includes a reference to a database.
Claim 11
Independent Claim
136 words
A method of uncovering information represented within a human recognizable image robustly and imperceptibly embedded in a marked video sequence, where the marked video sequence is generated by combining at least part of the human recognizable image with each of a plurality of frames of a video sequence in corresponding embedding locations, comprising: using video frames from the marked video sequence, where parts of the human recognizable image are imperceptibly present in a plurality of the video frames; and combining the video frames in a predetermined manner that results in an accumulated image in which the parts of the human recognizable image present in the video frames are emphasized, where the combining of video frames in a predetermined manner proceeds until the human recognizable image is sufficiently emphasized in the accumulated image as to be recognizable.
Claim 12
Independent Claim
136 words
A method of uncovering information represented within a human recognizable image robustly and imperceptibly embedded in a marked video sequence, where the marked video sequence is generated by combining at least part of the human recognizable image with each of a plurality of frames of a video sequence in corresponding embedding locations, comprising: using video frames from the marked video sequence, where parts of the human recognizable image are imperceptibly present in a plurality of the video frames; and combining the video frames in a predetermined manner that results in an accumulated image in which the parts of the human recognizable image present in the video frames are emphasized, where the combining of video frames in a predetermined manner proceeds until the human recognizable image is sufficiently emphasized in the accumulated image as to be recognizable.
Claim 13
Dependent Claim
20 words
The method of claim 10 wherein combining the video frames in a predetermined manner comprises averaging together the video frames.
Claim 14
Dependent Claim
36 words
The method of claim 10 , wherein the human recognizable information is recognized by a device after the combination of the video frames results in an accumulated image in which the human recognizable image is recognizable.
Claim 15
Dependent Claim
25 words
The method of claim 10 , wherein combining the video frames in a predetermined manner further comprises selecting a predetermined portion of each video frame.
Claim 16
Dependent Claim
12 words
The method of claim 10 , wherein the video sequence is degraded.
Claim 17
Dependent Claim
18 words
The method of claim 10 , further comprising selecting a plurality of video frames from the video sequence.
Claim 18
Dependent Claim
27 words
The method of claim 10 , wherein combining the video frames in a predetermined manner further comprises emphasizing at least one predetermined aspect of the video frames.
Claim 19
Dependent Claim
16 words
The method of claim 10 , wherein the plurality of video frames are of different images.
Claim 20
Dependent Claim
28 words
The method of claim 1 , wherein obtaining a plurality of video frames from the video sequence comprises selecting a plurality of video frames from the video sequence.
Claim 21
Dependent Claim
27 words
The method of claim 16 , wherein emphasizing at least one predetermined aspect of the video frames comprises applying a high pass filter to the video frames.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2011-09-30 | 2012-03-31 | 2012-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2015-09-30 | 2016-03-31 | 2016-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2019-09-30 | 2020-03-31 | 2020-09-30 | $7700.00 | Window Closed / Lapsed |