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Tuesday, January 24 • 4:30pm - 6:00pm
Poster: PPGSecure: Biometrics Presentation Attack Detection Using Photopletysmograms

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Authentication of users by exploiting face images or videos
as a biometric is quite commonplace and becoming more
widespread due to the advances made in face recognition
technologies. While face recognition has made rapid advances
in its performance, such face-based authentication systems
remain vulnerable to biometric presentation attacks, such as
the presentation of a video or photograph on a display device,
the presentation of a printed photograph or the presentation
of a face mask resembling the user to be authenticated. In
this paper, we present PPGSecure, a novel methodology that
relies on camera-based physiology measurements to detect and
thwart such biometric presentation attacks. PPGSecure uses
photoplethysmogram (PPG), which is an estimate of vital signs
from the small color changes in the video observed due to
minor pulsatile variations in the volume of blood flowing to the
face. We demonstrate that the temporal frequency spectra of
the estimated PPG signal for real live individuals are distinctly
different than those of presentation attacks and exploit these
differences to detect presentation attacks. We demonstrate
that PPGSecure achieves significantly better performance than
existing state of art methods on photograph, image and video
based presentation attacks.

Tuesday January 24, 2017 4:30pm - 6:00pm
BioScience Research Collaborative Event Hall 6500 Main Street, Houston, TX 77030-1402

Attendees (1)