Liveness detection apparatus, system and method
US11468712B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2020 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Jan 15, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A liveness detection device comprising a light source unit, image sensor unit, and data processing module and authentication method thereof are provided. The light source unit comprises a substrate having a first inclined surface, whereby emitted light is reflected light from the first inclined surface. An application triggers an authentication process, which is indicated to a user. The light source unit begins illumination having a specific pattern and for a specific period and image signals are generated. Liveness detection signals are generated, via calculation of interference patterns, each, from more than one image signal, in sequence, for determination of liveness. When a liveness threshold is met, feature recognition data is generated, via calculation of interference patterns, each, from more than one image signal, in sequence, for matching. Then, the features are compared with previously enrolled data for locking or unlocking of the liveness detection device and/or system coupled thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.