Patent ID: 11934504
Assignee: DAON TECHNOLOGY
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 5:
6. A computer for determining user liveness comprising:
a processor; and
a memory configured to store data, said authentication computer system being associated with a network and said memory being in communication with said processor and having instructions stored thereon which, when read and executed by said processor, cause said authentication computer system to:
receive image data of a biometric modality of a user captured by one of a plurality of illumination devices while any combination of the illumination devices was operated across different wavelengths and at different times to apply illumination to the biometric modality, the illumination devices being located at different positions relative to the biometric modality;
recognize reflections in the captured image data, the reflections resulting from the applied illumination; and
determine the captured image data was taken of a live person based on the reflections.