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SPOOFING DETECTOR, SPOOFING DETECTION METHOD, AND COMPUTER-READABLE RECORDING MEDIUM
SPOOFING DETECTOR, SPOOFING DETECTION METHOD, AND COMPUTER-READABLE RECORDING MEDIUM
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机译：冒充检测器，冒充检测方法和计算机可读记录介质
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摘要
A spoofing detector 300 is provided with: a face image acquisition unit 301 for acquiring, from an imaging device 310, a first image frame including the face of a subject person that is obtained while a light-emitting device 320 is emitting light, and a second image frame including the face of the subject person that is obtained while light from the light-emitting device 320 is turned off ; a face information extraction unit 302 for extracting information that specifies the face portion of the subject person from the first image frame as first face information and extracting information that specifies the face portion of the subject person from the second image frame as second face information; a feature quantity calculation unit 303 for extracting a portion that includes a bright spot formed by reflection at the iris area of the pupil of the subject person from the first image frame on the basis of the first face information, extracting a portion that corresponds to the portion that includes the bright spot from the second image frame on the basis of the second facer information, and calculating a feature quantity from the two extracted portions that is independent of the position of the bright spot; and a spoofing determination unit 304 for determining the authenticity of the subject person on the basis of the feature quantity.
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