IMPERSONATION DETECTION DEVICE, IMPERSONATION DETECTION METHOD, AND RECORDING MEDIUM

摘要

To provide a technology of more accurately detecting spoofing in face authentication, without increasing a scale of a device configuration and a burden on a user. A spoofing detection device 1 includes a facial image sequence acquisition unit 11, a line-of-sight change detection unit 12, a presentation information display unit 13, and a spoofing determination unit 14. The facial image sequence acquisition unit 11 acquires a facial image sequence indicating the face of a user. The line-of-sight change detection unit 12 detects information about a temporal change in the line-of-sight from the facial image sequence. The presentation information display unit 13 displays presentation information presented to the user as part of an authentication process. The spoofing determination unit 14 determines the likelihood of the face indicated by the facial image sequence being spoofing on the basis of the information about the temporal change in the line-of-sight with respect to the presentation information.