“…Generally, vein images are collected from the finger, palm or dorsal area of the hand, with palm veins providing richer texture information, thereby improving the distinguishing ability and making them more convenient for acquisition, which is increasingly attractive to researchers. As with other single-modal biometrics, single-sample palm vein recognition has been intensively studied [2,3,4]. However, the limited biometrics information from a single biometric and single sample cannot satisfy the requirements of precision and reliability for recognition and authentication in real-world scenarios.…”