The subject is a challenge response mechanism used as an optional add-on to the face recognition part of the multi modal biometric authentication system "BioID". This mechanism greatly enhances security in regard to replay attacks. The user is required to look into a certain direction, which is randomly chosen by the system. By estimating the head pose, the system verifies the user's response to the direction challenge. The pose estimation is based on detection and subsequent tracking of suitable facial features. Experimental evaluations have shown the effectiveness of the approach against replay attacks.


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    Title :

    Avoiding replay-attacks in a face recognition system using head-pose estimation


    Contributors:


    Publication date :

    2003-01-01


    Size :

    912734 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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