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AUTHENTICATION DEVICE, AUTHENTICATION METHOD, AND COMPUTER PROGRAM

  • US 20200134152A1
  • Filed: 12/23/2019
  • Published: 04/30/2020
  • Est. Priority Date: 06/27/2017
  • Status: Active Grant
First Claim
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1. An authentication device comprising:

  • an electrocardiographic waveform data creation unit configured to create a plurality of pieces of electrocardiogram waveform data extracted for each heartbeat from electrocardiogram signals of a plurality of users;

    a similarity calculation unit configured to calculate a similarity between each piece of electrocardiogram waveform data of each user and template waveform data created by averaging pieces of electrocardiogram waveform data of the each user;

    a neural network model creation unit configured to create and train a first neural network model for every user by using similarities between pieces of electrocardiogram waveform data of a user and the template waveform data of the same user and similarities between pieces of electrocardiogram waveform data of one user and the template waveform data of another user, and create and train a plurality of second neural network models for respective users by using similarities between pieces of electrocardiogram waveform data of a certain user and the template waveform data of the certain user and similarities between pieces of electrocardiogram waveform data of the certain user and the template waveform data of another user different from the certain user; and

    an authentication unit configured to, at the time of authentication, execute a first step of authentication process in which the similarities calculated using electrocardiogram waveform data for authentication created from electrocardiogram signals of a user to be authenticated and the template waveform data are input to the first neural network model created and trained in advance, and execute a second step of authentication process in which the similarities are input to the second neural network model created and trained in advance.

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