Digital watermarking methods, programs and apparatus
First Claim
1. A method comprising:
- capturing imagery including one or more objects in front of a green or blue-screen backdrop, wherein the green or blue-screen backdrop comprises a first steganographic orientation component embedded therein, wherein the first steganographic orientation component helps make a watermark robust to geometric distortion, wherein the captured imagery includes a representation of the first steganographic orientation component, and wherein the first steganographic orientation component is machine-readable from analysis of the captured imagery;
determining a relative depth or a spatial distance between one of the one or more objects and the green or blue-screen backdrop via the first steganographic orientation component and a second steganographic orientation component, wherein the one of the one or more objects comprises the second steganographic orientation component thereon; and
aligning graphic data with the captured imagery based upon the first steganographic orientation component.
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Accused Products
Abstract
The present invention provides steganographic and digital watermarking methods and apparatus. In a first implementation, we provide methods and apparatus for steganographically conveying data in a facial image by subtly altering facial features relative to statistical norms. In a second implementation, we convey data through different patterns of a diffraction grating. In a third implementation, we convey a digital watermark orientation component by projecting the orientation component onto an object to be captured. In the case of blue-screen technology, we incorporate an orientation component into a blue-screen itself. This provides great convenience for digital animators when overlay graphics and animation. In a forth implementation, we provide an identification document including an electronic memory chip. The chip includes an image of a bearer of the identification document. The image is digitally watermarked to include information (e.g., a chip serial number or document number) that is carried by the identification document. Thus, the electronic memory chip is tied to the document.
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Citations
17 Claims
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1. A method comprising:
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capturing imagery including one or more objects in front of a green or blue-screen backdrop, wherein the green or blue-screen backdrop comprises a first steganographic orientation component embedded therein, wherein the first steganographic orientation component helps make a watermark robust to geometric distortion, wherein the captured imagery includes a representation of the first steganographic orientation component, and wherein the first steganographic orientation component is machine-readable from analysis of the captured imagery; determining a relative depth or a spatial distance between one of the one or more objects and the green or blue-screen backdrop via the first steganographic orientation component and a second steganographic orientation component, wherein the one of the one or more objects comprises the second steganographic orientation component thereon; and aligning graphic data with the captured imagery based upon the first steganographic orientation component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system comprising:
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a camera configured to; capture imagery including one or more objects in front of a green or blue-screen backdrop, wherein the green or blue-screen backdrop comprises a first steganographic orientation component embedded therein, wherein the first steganographic orientation component helps make a watermark robust to geometric distortion, wherein the captured imagery includes a representation of the first steganographic orientation component, and wherein the first steganographic orientation component is machine-readable from analysis of the captured imagery; and one or more processors configured to; receive the captured imagery; determine a relative depth or a spatial distance between one of the one or more objects and the green or blue-screen backdrop via the first steganographic orientation component and a second steganographic orientation component, wherein the one of the one or more objects comprises the second steganographic orientation component thereon; and align graphic data with the captured imagery based upon the first steganographic orientation component. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A non-transitory computer-readable medium having instructions stored thereon, the instructions comprising:
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instructions to receive captured imagery, wherein the captured imagery comprises one or more objects in front of a green or blue-screen backdrop, wherein the green or blue-screen backdrop comprises a first steganographic orientation component embedded therein, wherein the first steganographic orientation component helps make a watermark robust to geometric distortion, wherein the captured imagery includes a representation of the first steganographic orientation component, and wherein the first steganographic orientation component is machine-readable from analysis of the captured imagery; instructions to determine a relative depth or a spatial distance between one of the one or more objects and the green or blue-screen backdrop via the first steganographic orientation component and a second steganographic orientation component, wherein the one of the one or more objects comprises the second steganographic orientation component thereon; and instruction to align graphic data with the captured imagery based upon the first steganographic orientation component. - View Dependent Claims (17)
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Specification