Patent US6624874B2 successfully refreshed from Google Patents.
US6624874B2
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Apparatus and method for inserting an updateable hidden image into an optical path
Assignee: Eastman Kodak Co
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Filing: 2001-12-21
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Granted: 2003-09-23
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Expires: 2021-12-21
Abstract
Abstract An apparatus for optically embedding hidden data in a source image, wherein the hidden data is updateable in real-time, the apparatus includes (a) optical masks bearing a data image and an encoding carrier image either or both of which may be updated in real-time; (b) optical components for convolving, the data image with the encoding carrier image to produce a spatially dispersed data image; and (c) optical beam combiner for combining the spatially dispersed data image with the source image to produce a source image containing embedded hidden data.
Inventors
- 👤 Joseph F. Revelli, Jr.
- 👤 Chris W. Honsinger
- 👤 Paul W. Jones
- 👤 Lawrence A. Ray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:51
CPC Classifications
G; G06; G06T; G06T1/00; G06T1/0021; G06T1/005; G06T1/0071; G06T1/0064; H; H04; H04N; H04N1/00; H04N1/32; H04N1/32101; H04N1/32144; G06T2201/00; G06T2201/005; G06T2201/0051; G06T2201/0052; G06T2201/0061
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
90 words
An apparatus for optically embedding hidden data in a source image, wherein the hidden data is updated in real-time, comprising: a) optical masks bearing a data image and an encoding carrier image, either or both of which is updated in real-time at pre-specified time intervals; b) optical components for convolving the data image with the encoding carrier image to produce a spatially dispersed data image; and c) optical beam combiner for combining the spatially dispersed data image with the source image to produce a source image containing embedded hidden data.
Claim 2
Independent Claim
90 words
An apparatus for optically embedding hidden data in a source image, wherein the hidden data is updated in real-time, comprising: a) optical masks bearing a data image and an encoding carrier image, either or both of which is updated in real-time at pre-specified time intervals; b) optical components for convolving the data image with the encoding carrier image to produce a spatially dispersed data image; and c) optical beam combiner for combining the spatially dispersed data image with the source image to produce a source image containing embedded hidden data.
Claim 3
Dependent Claim
14 words
The apparatus as in claim 1 , wherein the optical masks are updated electronically.
Claim 4
Dependent Claim
17 words
The apparatus as in claim 2 , wherein the electronically updateable optical masks are spatial light modulators.
Claim 5
Dependent Claim
33 words
The apparatus as in claim 1 , wherein the source image is a sequence of individual frames with an associated display rate and the optical masks are updated synchronously with the display rate.
Claim 6
Dependent Claim
56 words
The apparatus as in claim 1 , wherein the optical components performing the optical convolution of the data image and the encoding carrier image operate in the spatial domain using incoherent illumination, and wherein either one or both of the data image and the encoding carrier image are formed by at least one updateable optical mask.
Claim 7
Dependent Claim
62 words
The apparatus as in claim 1 , wherein the optical components performing the optical convolution of the data image and the encoding carrier image operate in the frequency domain using coherent illumination and wherein only one of the data image and the encoding carrier image is formed by an updateable optical mask and the other is formed by a static optical mask.
Claim 8
Dependent Claim
17 words
The apparatus as in claim 6 , wherein the static optical mask is a Vander Lugt filter.
Claim 9
Independent Claim
89 words
A method for optically embedding hidden data in a source image, wherein the hidden data is updated in real-time, the method comprising the steps of: a) providing optical mask bearing a data image and an encoding carrier image, either or both of which is updated in real-time at pre-specified time intervals; b) convolving the data image with the encoding carrier image to produce a spatially dispersed data image; and c) combining the spatially dispersed data image with the source image to produce a source image containing embedded hidden data.
Claim 10
Independent Claim
89 words
A method for optically embedding hidden data in a source image, wherein the hidden data is updated in real-time, the method comprising the steps of: a) providing optical mask bearing a data image and an encoding carrier image, either or both of which is updated in real-time at pre-specified time intervals; b) convolving the data image with the encoding carrier image to produce a spatially dispersed data image; and c) combining the spatially dispersed data image with the source image to produce a source image containing embedded hidden data.
Claim 11
Dependent Claim
13 words
The method as in claim 8 , wherein the updating is performed electronically.
Claim 12
Dependent Claim
16 words
The method as in claim 9 further comprising using spatial light modulators for the electronic updating.
Claim 13
Dependent Claim
37 words
The method as in claim 8 further comprising the step of providing the source image as a sequence of individual frames with an associated display rate and the optical masks are updated synchronously with the display rate.
Claim 14
Dependent Claim
53 words
The method as in claim 8 , wherein the optical convolution of the data image and the encoding carrier image is accomplished in the spatial domain using incoherent illumination and wherein either one or both of the data image and the encoding carrier image are formed by at least one updateable optical mask.
Claim 15
Dependent Claim
59 words
The method as in claim 8 , wherein the optical convolution of the data image and the encoding carrier image is accomplished in the frequency domain using coherent illumination and wherein only one of the data image and the encoding carrier image is formed by an updateable optical mask and the other is formed by a static optical mask.
Claim 16
Dependent Claim
18 words
The method as in claim 13 further comprising using a Vander Lugt filter as the static optical mask.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2006-09-22 | 2007-03-24 | 2007-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-09-22 | 2011-03-24 | 2011-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-09-22 | 2015-03-24 | 2015-09-23 | $7700.00 | Window Closed / Lapsed |