Facial authentication systems and methods utilizing time of flight sensing
US10922395B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2019 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Apr 25, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30201
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure is directed to a system and method of authenticating a user's face with a ranging sensor. The ranging sensor includes a time of flight sensor and a reflectance sensor. The ranging sensor transmits a signal that is reflected off of a user and received back at the ranging sensor. The received signal can be used to determine distance between the user and the sensor, and the reflectance value of the user. With the distance or the reflectivity, a processor can activate a facial recognition process in response to the distance and the reflectivity. A device incorporating the ranging sensor according to the present disclosure may reduce the overall power consumed during the facial authentication process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.