  Liveness Detection (LivDet) is an international competition series open to
academia and industry with the objec-tive to assess and report state-of-the-art
in Presentation Attack Detection (PAD). LivDet-2023 Noncontact Fingerprint is
the first edition of the noncontact fingerprint-based PAD competition for
algorithms and systems. The competition serves as an important benchmark in
noncontact-based fingerprint PAD, offering (a) independent assessment of the
state-of-the-art in noncontact-based fingerprint PAD for algorithms and
systems, and (b) common evaluation protocol, which includes finger photos of a
variety of Presentation Attack Instruments (PAIs) and live fingers to the
biometric research community (c) provides standard algorithm and system
evaluation protocols, along with the comparative analysis of state-of-the-art
algorithms from academia and industry with both old and new android
smartphones. The winning algorithm achieved an APCER of 11.35% averaged overall
PAIs and a BPCER of 0.62%. The winning system achieved an APCER of 13.0.4%,
averaged over all PAIs tested over all the smartphones, and a BPCER of 1.68%
over all smartphones tested. Four-finger systems that make individual
finger-based PAD decisions were also tested. The dataset used for competition
will be available 1 to all researchers as per data share protocol
