Palm Vein Biometrics in Smart Locks

Palm vein recognition brings advanced biometric security to smart locks by capturing unique subdermal vein patterns for authentication.

Biometric authentication has steadily migrated from smartphones into the front door, with smart locks now incorporating everything from capacitive fingerprint sensors to camera-based facial recognition. Like fingerprints, individuals have distinct vascular patterns beneath their skin. Palm vein recognition uses near-infrared illumination, in which deoxyhemoglobin (the oxygen-poor form of hemoglobin in blood) absorbs light, creating high-contrast images of subdermal veins for biometric matching.