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 encode the light sources;
means to direct the light into the tissue;
means to detect light that has substantially passed through sub-surface tissue;
means to record and store the resulting detector signals; and
means for processing the resulting spectral data 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
64 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 encode the light sources;
means to direct the light into the tissue;
means to detect light that has substantially passed through sub-surface tissue;
means to record and store the resulting detector signals; and
means for processing the resulting spectral data 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)
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30. An illumination system for collecting spectral information from tissue for performing biometric determination tasks comprising:
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a plurality of discrete light sources; and
means to encode the intensity of the light sources. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53)
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45. 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 using multivariate algorithms to produce a biometric determination.
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54. A personal identification system for performing biometric determination tasks to enable access to protected property, comprising:
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a personal device;
a spectral biometric sensor;
means for processing the resulting spectral data to perform a biometric determination; and
means to authorize access or deny access to the protected property in accordance with the results of the biometric determination. - View Dependent Claims (55, 56, 57, 58, 59, 60)
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61. A method for limiting access to protected property using a biometric sensor comprising steps of:
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collecting biometric enrollment data from known unauthorized people;
collecting target biometric data from target people;
comparing said target biometric data to said unauthorized enrollment data; and
denying access to said protected property if match between said target biometric data and said unauthorized enrollment data is determined. - View Dependent Claims (62, 63, 64)
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Specification