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Title:
SPOOFING DETECTOR, SPOOFING DETECTION METHOD, AND COMPUTER-READABLE RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/163065
Kind Code:
A1
Abstract:
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.

Inventors:
EBIHARA, Akinori (7-1 Shiba 5-chome, Minato-k, Tokyo 01, 〒1088001, JP)
Application Number:
JP2018/006561
Publication Date:
August 29, 2019
Filing Date:
February 22, 2018
Export Citation:
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Assignee:
NEC CORPORATION (7-1 Shiba 5-chome, Minato-ku Tokyo, 01, 〒1088001, JP)
International Classes:
G06T7/00; G06T1/00
Attorney, Agent or Firm:
BRIGHTAS IP ATTORNEYS (1-19-12, Ginza Chuo-k, Tokyo 61, 〒1040061, JP)
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