Object Processing Employing Movement
First Claim
Patent Images
1. A method comprising:
- capturing plural successive images of an object from different viewpoints using a camera-equipped device, said capturing occurring during relative movement between the device and the object; and
by reference to data thereby collected, making a determination concerning the object, based on 2D directional albedo data obtained by processing said plural successive images from different viewpoints.
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Abstract
Directional albedo of a particular article, such as an identity card, is measured and stored. When the article is later presented, it can be confirmed to be the same particular article by re-measuring the albedo function, and checking for correspondence against the earlier-stored data. The re-measuring can be performed through us of a handheld optical device, such as a camera-equipped cell phone. The albedo function can serve as random key data in a variety of cryptographic applications. The function can be changed during the life of the article. A variety of other features are also detailed.
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Citations
12 Claims
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1. A method comprising:
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capturing plural successive images of an object from different viewpoints using a camera-equipped device, said capturing occurring during relative movement between the device and the object; and by reference to data thereby collected, making a determination concerning the object, based on 2D directional albedo data obtained by processing said plural successive images from different viewpoints. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer readable storage medium having instructions stored therein that, if executed by a processing device, cause the processing device to perform a method including:
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capturing plural successive images of an object using a camera-equipped device, said images having different viewpoints; and by reference to data thereby collected, making a determination concerning the object, based on 2D directional albedo data obtained by processing said plural successive images from different viewpoints.
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12. A portable device including a camera, a processor, and a memory, the memory storing instructions that configure the processor to:
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capture plural successive images of an object using a camera-equipped device, said images having different viewpoints; and by reference to data thereby collected, make a determination concerning the object, based on 2D directional albedo data obtained by processing said plural successive images from different viewpoints.
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Specification