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Biometric Liveness Detection Using Gaze Information

Ali, Asad (2015) Biometric Liveness Detection Using Gaze Information. Doctor of Philosophy (PhD) thesis, University of Kent,. (KAR id:50524)

Language: English
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This thesis is concerned with liveness detection for biometric systems and in particular for face recognition systems. Biometric systems are well studied and have the potential to provide satisfactory solutions for a variety of applications.

However, presentation attacks (spoofng), where an attempt is made at subverting them system by making a deliberate presentation at the sensor is a serious challenge to their use in unattended applications. Liveness detection techniques can help with protecting biometric systems from attacks made through the presentation of artefacts and recordings at the sensor. In this work novel techniques for liveness detection are presented using gaze information.

The notion of natural gaze stability is introduced and used to develop a number of novel features that rely on directing the gaze of the user and establishing its behaviour. These features are then used to develop systems for detecting spoofng attempts. The attack scenarios considered in this work include the use of hand held photos and photo masks as well as video reply to subvert the system. The proposed features and systems based on them were evaluated extensively using data captured from genuine and fake attempts.

The results of the evaluations indicate that gaze-based features can be used to discriminate between genuine and imposter. Combining features through feature selection and score fusion substantially improved the performance of the proposed features.

Item Type: Thesis (Doctor of Philosophy (PhD))
Thesis advisor: Deravi, Farzin
Thesis advisor: Hoque, Sanaul
Uncontrolled keywords: biometrics, liveness, spoofing, presentation attacks.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Divisions > Division of Computing, Engineering and Mathematical Sciences > School of Engineering and Digital Arts
Depositing User: Users 1 not found.
Date Deposited: 17 Sep 2015 11:00 UTC
Last Modified: 08 Dec 2022 22:32 UTC
Resource URI: (The current URI for this page, for reference purposes)

University of Kent Author Information

Ali, Asad.

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