Quality metrics for biometric authentication
US9361681B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2014 |
| Grant date | Jun 7, 2016 |
| Priority date | — |
| Expiry date | May 6, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/14
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This specification describes technologies relating to biometric authentication based on images of the eye. In general, one aspect of the subject matter described in this specification can be embodied in methods that include obtaining first image of an eye including a view of the white of the eye. The method may further include determining metrics for the first image, including a first metric for reflecting an extent of one or more connected structures in the first image that represents a morphology of eye vasculature and a second metric for comparing the extent of eye vasculature detected across different color components in the first image. A quality score may be determined based on the metrics for the first image. The first image may be rejected or accepted based on the quality score.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.