System and method for sensor adaptation in iris biometrics
US9530052B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2014 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Jul 2, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The sensor adaptation technique applicable to non-contact biometric authentication, specifically in iris recognition, is designed to handle the sensor mismatch problem which occurs when enrollment iris samples and test iris samples are acquired with different sensors. The present system and method are capable of adapting iris data collected from one sensor to another sensor by transforming the iris samples in a fashion bringing the samples belonging to the same person closer than those samples belonging to different persons, irrespective of the sensor acquiring the samples. The sensor adaptation technique is easily incorporable into existing iris recognition systems and uses the training iris samples acquired with different sensors for learning adaptation parameters and subsequently applying the adaptation parameters for sensor adaptation during verification stage to significantly improve the recognition system performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.