The International Fingerprint Liveness Detection Competition (LivDet) is a
biennial event that invites academic and industry participants to prove their
advancements in Fingerprint Presentation Attack Detection (PAD). This edition,
LivDet2023, proposed two challenges, Liveness Detection in Action and
Fingerprint Representation, to evaluate the efficacy of PAD embedded in
verification systems and the effectiveness and compactness of feature sets. A
third, hidden challenge is the inclusion of two subsets in the training set
whose sensor information is unknown, testing participants ability to generalize
their models. Only bona fide fingerprint samples were provided to participants,
and the competition reports and assesses the performance of their algorithms
suffering from this limitation in data availability.

国际指纹活体检测竞赛（LivDet）是一项每两年举办一次的活动，邀请学术界和工业界的参与者证明他们在指纹表示攻击检测（PAD）方面的进展。本届竞赛提出了两个挑战，即动作中的活体检测和指纹表示，旨在评估嵌入验证系统的 PAD 的有效性以及特征集的有效性和紧凑性。另外，还包括一个隐藏挑战，即在训练集中包含两个未知传感器信息的子集，测试参与者的模型泛化能力。参与者只提供真实指纹样本，竞赛报告并评估他们的算法在数据可用性有限的情况下的性能。