Fingerprint authentication with template updating
US9471765B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 2016 |
| Grant date | Oct 18, 2016 |
| Priority date | — |
| Expiry date | Mar 10, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of authenticating a finger against a stored template and expanding the stored template. The method comprises acquiring a present fingerprint image; retrieving a stored enrollment representation, comprising said stored template, and a representation of at least a first previous fingerprint image acquired in connection with a previous failed authentication attempt; and determining if the stored template should be expanded. When it is determined that a first match between a present fingerprint image representation and the stored template fulfills a first template updating requirement and a second match between the present fingerprint image representation and said at least first previous fingerprint image representation fulfills said second template updating requirement, a signal indicating a successful authentication is provided; and a first expanded template is formed based on said stored template, said present fingerprint image and said at least first previous fingerprint image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.