Apparatus and method of biometric determination using specialized optical spectroscopy systems
First Claim
1. A system for collecting spectral information from tissue for performing biometric determination tasks comprising:
- a plurality of discrete light sources;
means to direct light from the plurality of discrete light sources into the tissue;
means to detect light that has substantially passed through sub-surface tissue;
means to record and store signals from the means to detect light as distinct data points for light detected from each of the plurality of discrete light sources ; and
means for processing the resulting spectral data as distinct data points for each of the plurality of discrete data points to perform a biometric determination.
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Accused Products
Abstract
Methods and apparatuses for performing biometric determinations using optical spectroscopy of tissue. The biometric determinations that are disclosed include determination or verifications of identity, estimation of age, estimation of sex, determination of sample liveness and sample authenticity. The apparatuses disclosed are based upon discrete light sources such as light emitting diodes, laser diodes, vertical cavity surface emitting lasers, and broadband sources with multiple narrow-band optical filters. The multiple light sources are encoded in a manner that the tissue response for each source can be efficiently measured. The light sources are spaced at multiple distances from a detector to contribute differing information to the biometric determination task as do light sources with different wavelength characteristics. Apparatuses are disclosed that incorporate a spectral biometric sensor with a personal electronic device such as cellular telephones, personal digital assistants, wristwatches, electronic fobs for the purpose of providing secure biometric access to protected property.
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Citations
41 Claims
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1. A system for collecting spectral information from tissue for performing biometric determination tasks comprising:
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a plurality of discrete light sources; means to direct light from the plurality of discrete light sources into the tissue; means to detect light that has substantially passed through sub-surface tissue; means to record and store signals from the means to detect light as distinct data points for light detected from each of the plurality of discrete light sources ; and means for processing the resulting spectral data as distinct data points for each of the plurality of discrete data points to perform a biometric determination. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method for performing a biometric determination task using tissue spectral data, said spectral data having a number of measurement values, comprising the steps of:
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obtaining target tissue spectral data from said target individual using illumination from a number of discrete light sources; and processing said target tissue spectral data as discrete data points using multivariate algorithms to produce a biometric determination. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41)
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Specification