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Identity authentication method and apparatus, terminal and server

  • US 10,601,821 B2
  • Filed: 03/02/2017
  • Issued: 03/24/2020
  • Est. Priority Date: 09/03/2014
  • Status: Active Grant
First Claim
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1. An identity authentication method comprising:

  • acquiring facial feature information of a user, the acquiring the facial feature information of the user including;

    tracking a face of the user upon detecting the face of the user;

    acquiring multiple face images, a time interval between acquiring a first face image of the multiple face images and acquiring a second image of the multiple face images being more than a preset time interval to avoid extraction of a same face image;

    determining that a resolution of a respective face image of the multiple face images meets a preset resolution threshold;

    extracting head gesture information from the respective face image, the head gesture information including at least one of following angles including a head lowering or raising angle, a face turning angle, or a head leaning angle; and

    determining whether a respective angle of the angles in the respective face image falls within a preset angle range;

    discarding the respective face image in response to determining that the respective angle does not fall within the preset angle range; and

    extracting the facial feature information of the user from the respective face image in response to determining that the respective angle falls within the preset angle range;

    using the facial feature information as first facial feature information of the user;

    sending the first facial feature information of the user to a server to allow the server to send dynamic face authentication prompt information that is randomly extracted from multiple dynamic human face authentication prompt information data, in response to verifying that the first facial feature information matches second facial feature information of the user that is stored, the multiple dynamic human face authentication prompt information data including expression action prompt information and voice read prompt information;

    receiving the dynamic face authentication prompt information sent by the server;

    obtaining gesture recognition information of the dynamic face authentication prompt information by recognizing a facial gesture presented by the user; and

    sending the gesture recognition information to the server to enable the server to confirm that an identity authentication is successful for the user upon verifying that the gesture recognition information is consistent with the dynamic face authentication prompt information.

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