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US 10,652,749 B2Granted
Spoof detection using proximity sensors
AssigneeEyeVerify Inc.
InventorReza R. Derakhshani
Life of this patent
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Abstract
Computer-implemented methods and systems for liveness analysis using proximity sensors are described. Reflective strength readings from a proximity sensor, such as an infrared proximity sensor incorporated in a mobile device, are received. A liveness measure is determined based on the one or more readings and a reflection threshold, and, based on the liveness measure, a determination is made whether a target in range of the proximity sensor is likely to be a live human.
Claims20
A computer-implemented method comprising:
- receiving one or more reflective strength readings from a proximity sensor of a device;
- determining a distance between the device and a target in range of the proximity sensor;
- normalizing the one or more reflective strength readings according to the determined distance to determine a reflection threshold;
- determining a liveness measure based on the one or more readings and the reflection threshold;
- and
- determining whether the target is likely to be a live human based at least in part on the liveness measure.
3 more elements
A system comprising:
- at least one processor;
- and
- at least one memory storing computer-executable instructions that, when executed, configure the at least one processor to perform operations comprising:
- receiving one or more reflective strength readings from a proximity sensor of a device;
- determining a distance between the device and a target in range of the proximity sensor;
- normalizing the one or more reflective strength readings according to the determined distance to determine a reflection threshold;
- determining a liveness measure based on the one or more readings and the reflection threshold;
- and
- determining whether the target is likely to be a live human based at least in part on the liveness measure.
6 more elements
Dependencies are inferred from the claim text.