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Title:
BIOMETRIC AUTHENTICATION DEVICE, BIOMETRIC AUTHENTICATION METHOD, AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2020/045204
Kind Code:
A1
Abstract:
The present invention provides a biometric authentication device and the like capable of performing highly accurate, quick authentication in combination of voice authentication and ear authentication. A biometric authentication device 300 is provided with: a reproduction unit 11 for reproducing a sound; an ear authentication unit 13 for acquiring a reverberation sound of the sound output from the reproduction unit 11 in an ear of a user to be authenticated, extracting an ear acoustic feature amount from the reverberation sound, and calculating an ear authentication score by comparing the extracted ear acoustic feature amount with an ear acoustic feature amount stored in advance; a voice authentication unit 14 for extracting a talker feature amount from an input voice of the user, and calculating a voice authentication score by comparing the extracted talker feature amount with a talker feature amount stored in advance; and an authentication integration unit 15 for outputting an authentication integration result calculated on the basis of the ear authentication score and the voice authentication score. After the sound is output into the ear by the reproduction unit 11, a recording unit 12 inputs the voice of the user.

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Inventors:
OKABE KOJI (JP)
ARAKAWA TAKAYUKI (JP)
KOSHINAKA TAKAFUMI (JP)
Application Number:
PCT/JP2019/032729
Publication Date:
March 05, 2020
Filing Date:
August 22, 2019
Export Citation:
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Assignee:
NEC CORP (JP)
International Classes:
G06F21/32; A61B5/1171; G10L17/00; G10L17/10
Domestic Patent References:
WO2017069118A12017-04-27
Foreign References:
JP2000148985A2000-05-30
JP2008033144A2008-02-14
JP2017167884A2017-09-21
JP2002221990A2002-08-09
JP2015206857A2015-11-19
JP2018162229A2018-10-18
Other References:
HANAZAWA, KEN ET AL.: " Interview promising public technologies - What is Japan doing?", BOEI GIJUTSU JANARU - DEFENSE TECHNOLOGY JOURNAL, vol. 37, no. 10, 1 October 2017 (2017-10-01), pages 18 - 22, XP009526041, ISSN: 0919-8555
MIYAZAKI, TARO: "High accuracy of multi-modal speaker verification using speech and pinna image information", LECTURE PROCEEDINGS OF 2004 AUTUMN RESEARCH CONFERENCE OF THE ACOUSTICAL SOCIETY OF JAPAN - I -, 21 September 2004 (2004-09-21), pages 99 - 100
See also references of EP 3846052A4
Attorney, Agent or Firm:
SHIMOSAKA Naoki (JP)
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