System and method for encoding high density geometric symbol set
First Claim
1. A system for encoding a symbol set, comprising:
- an input interface to receive information to be encoded in media; and
an encoding engine, the encoding engine communicating with the input interface to receive the information and encode the information in a set of geometric symbols in a color space in the media.
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Abstract
A system and related techniques provide a platform for encoding high density geometric symbol sets, for example a triangular barcode-type of encoding which may be used to encode drivers'"'"' licenses, biometric IDs, passports, or other transaction or identification media. According to embodiments of the invention in one regard, an inkjet, laser or other printer or output device may imprint a paper, plastic or other media with geometric symbols such as triangles in a defined array, to represent, for instance, name, address, or other identifying information, for instance such as digital facial photographs, iris or retinal scans, fingerprints, signatures, or other information. The geometric symbols may in one regard be arranged in a staggered format, separated in embodiments by a white space that may serve to reduce aliasing effects and other distortions. Because triangular symbols may in general be packed more closely together, and the number of distinct individual symbols may scale according to the range of color space employed for the symbol set, information densities high enough to satisfactorily encode biometric iris or retinal scans, digital facial photographs, or other identification or other information may be achieved. In embodiments, error correcting processing such as Reed-Solomon techniques may be employed to enhance scanning accuracy. In further embodiments, a reference palette may be embedded within the imprinted media, to provide a scale against which color fading or other distortion may be measured.
67 Citations
20 Claims
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1. A system for encoding a symbol set, comprising:
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an input interface to receive information to be encoded in media; and
an encoding engine, the encoding engine communicating with the input interface to receive the information and encode the information in a set of geometric symbols in a color space in the media. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for encoding a symbol set, comprising:
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receiving information to be encoded in media; and
encoding the information in a set of geometric symbols in a color space in the media. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
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15. A set of encoded geometric symbols, the set of geometric symbols encoding information according to a method comprising:
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receiving information to be encoded in media; and
encoding the information in a set of geometric symbols in a color space in the media. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification