Differentiating real faces from representations
US9524421B2 · kind B2 · utility
9Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2013 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | Apr 27, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/168
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Facial recognition can be used to determine whether or not a user has access privileges to a device such as a smartphone. It may be possible to spoof an authenticated user's image using a picture of the user. Implementations disclosed herein utilize time of flight and/or reflectivity measurements of an authenticated user to compare to such values obtained for an image of an object. If the time of flight distance and/or reflectivity distance for the object match a measured distance, then the person (i.e., object) may be granted access to the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.