Hyperspectral imaging of biofluids for biometric applications

A system comprising:

• a hyperspectral image (HSI) scanner;
• and
• a processor operatively connected to the HSI scanner, wherein the processor is operatively configured to:
• receive, from the HSI scanner, HSI scan data of a human subject's skin comprising a biofluid thereon, wherein the biofluid was excreted from the human subject's skin;
• generate a data cube representation of the HSI scan data, wherein the data cube comprises a three-dimensional data structure further comprising a spatial domain and a spectral domain;
• process the data cube, wherein processing the data cube comprises detecting one or more signals in the spatial domain and in the spectral domain, wherein the one or more signals are indicative of one or more uniquely identifiable biofluid metabolite features;
• and
• generate a feature vector comprising the detected one or more signals indicative of one or more uniquely identifiable biofluid metabolite features, whereby the feature vector is used for subsequent identity verification of the human subject based on the one or more signals indicative of one or more uniquely identifiable biofluid metabolite features.

A tangible, non-transitory, computer-readable medium comprising instructions encoded therein, wherein the instructions when executed by a processor, cause the processor to:

• receive, from a hyperspectral image (HSI) scanner, HSI scan data of a human subject's skin comprising a biofluid thereon, wherein the biofluid was excreted from the human subject's skin;
• generate a data cube representation of the HSI scan data, wherein the data cube comprises a three-dimensional data structure further comprising a spatial domain and a spectral domain;
• process the data cube, wherein processing the data cube comprises detecting one or more signals in the spatial domain and in the spectral domain, wherein the one or more signals are indicative of one or more uniquely identifiable biofluid metabolite features;
• and
• generate a feature vector comprising the detected one or more signals indicative of one or more uniquely identifiable biofluid metabolite features, whereby the feature vector is used for subsequent identity verification of the human subject based on the one or more signals indicative of one or more uniquely identifiable biofluid metabolite features.