Biometric identification of individuals by use of subcutaneous vein patterns
US5787185A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 29, 1995 |
| Grant date | Jul 28, 1998 |
| Priority date | — |
| Expiry date | Sep 29, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/1171
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of verifying the identity of an individual comprises capturing an image of the subcutaneous vein pattern at a predetermined region of the individual, converting the captured image to a plurality of stored values representative of the intensity of said image at specified relative locations, processing the stored values to produce a second plurality of stored values representative of the image of the vein pattern having enhanced contrast and subjecting the second plurality of stored values to a thresholding process to select those above a predetermined value and storing a set of measurements derived from the selected ones of said second plurality of stored values for comparison with a corresponding set of measurements made on the individual.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.