Geographically watermarked imagery and methods
First Claim
1. A method comprising:
- receiving data representing an image or video;
encoding the data with multiple instances of a digital watermark, wherein each instance of the digital watermark varies to indicate its relative relationship to one or more other digital watermark instances encoded within the data.
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Accused Products
Abstract
An image is digitally watermarked to convey position data about the subject of the image, such as latitude, longitude and elevation of a point depicted therein. Additional information, e.g., about camera attributes, camera angle, and 3D warp-characterizing polynomial coefficients, can also be included. In another implementation, a method includes receiving data representing an image or video, and embedding the data with a digital watermark. The digital watermark includes a plural-bit payload having information to: i) identify a spatial position or area depicted in the image and designated as an origin, and ii) identify a position or direction relative to the origin.
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Citations
20 Claims
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1. A method comprising:
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receiving data representing an image or video;
encoding the data with multiple instances of a digital watermark, wherein each instance of the digital watermark varies to indicate its relative relationship to one or more other digital watermark instances encoded within the data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 13)
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9. A method comprising:
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receiving data representing an image or video;
embedding the data with a digital watermark, wherein the digital watermark comprises a plural-bit payload including information to;
i) identify a spatial position or area depicted in the image and designated as an origin, and ii) identify a position or direction relative to the origin. - View Dependent Claims (10, 11, 12, 14)
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15. A method comprising:
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receiving data representing an image or video;
embedding a first digital watermark in the data, wherein the first digital watermark includes a first plural-bit payload carrying or pointing to coordinates associated with at least one geo-location depicted in the image or video; and
embedding a second, different digital watermark in the data, wherein the second digital watermark includes a second plural-bit payload carrying or pointing to geographical information associated with the at least one geo-location depicted in the image or video. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification