Liveness Detection based on Fine Movements of the Fingertip Surface

We propose a novel method for fingerprint liveness detection, which is based on the analysis of fine movements of the fingertip surface, which are induced by volume changes due to the blood flow. Our method can be implemented in combination with standard optical fingerprint scanners. We present some background information on fingerprint liveness detection such as already proposed methods for liveness detection based on skin temperature and skin resistance. Two different possible implementations of our new method are sketched and initial experiences with our test setup are presented. We also outline how we proceeded to further investigate the feasibility of the proposed method