Personal authentication device and electronic device
US8611614B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2009 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Oct 6, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/19
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An image taking unit including a lens array, a light shielding member, and an image taking unit that acquires a compound eye image of a vein pattern of a living body held at a lens array. A shift estimation unit estimates an image shift amount between ommatidium images of the compound eye image. An image restructuring unit restructures a single image from the compound eye image by using the image shift amount. In at least one embodiment, a size correction unit corrects the size of the restructured single image with a magnification ratio determined by the estimated image shift amount and an image shift amount stored in a registration pattern storage unit so as to correspond to a registration pattern. As a result, it is possible to perform personal authentication while compensating influences due to fluctuations in a subject distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.