Method and device for locating a human iris in an eye image
US8325996B2 · kind B2 · utility
3Cited by
2References
36Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 24, 2008 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Sep 16, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/193
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a method for locating the iris in an image of an eye, comprising steps of locating the pupil in the image, of detecting positions of intensity steps of pixels located on a line passing through the pupil and transition zones between the iris and the cornea, on either side of the pupil, and of determining the center and the radius of a circle passing through the detected positions of the transitions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.