Apparatus and method of biometric identification or verification of individuals using optical spectroscopy
US6560352B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2001 |
| Grant date | May 6, 2003 |
| Priority date | — |
| Expiry date | Apr 11, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16H50/70
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods and apparatus for performing biometric identification or verification of identities using optical spectroscopy of tissue. Tissue optical spectra can be obtained by projecting optical radiation into skin and capturing the light transmitted or reflected back and out through the tissue. The tissue spectra collected preferably includes primarily light that has passed through skin tissue below the epidermis. Multiple tissue spectra and identities can be collected from one or more individuals. These tissue spectra can be analyzed on a computer, and the spectral features that are most important for classifying person-to-person differences can be established using principle component analysis, linear discriminant analysis, or a variety of other related techniques. One or more tissue spectra and identities can be collected from individuals for whom identification or verification may later be desired. A target individual seeking identification or verification can submit a suitable tissue site for spectroscopic measurement. In addition a target individual seeking identity verification can submit a purported identity using some means such as a typed user name, PIN code, magnetic card, …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.