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

Claim 9:
10. A non-transitory computer-readable recording medium in a computer for determining user liveness, the non-transitory computer-readable recording medium storing instructions which when executed by a hardware processor cause the non-transitory recording medium to perform steps comprising:
receiving 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;
recognizing reflections in the captured image data, the reflections resulting from the applied illumination; and
determining the captured image data was taken of a live person based on the reflections.