Abstract: A system includes an infrared camera, an infrared light source, and a processor. The processor is programmed to receive, from the infrared camera, an image of a hand illuminated using the infrared light source, and send the image to a remote server to identify a user corresponding to the hand according to a vein pattern of the hand. An image of a hand illuminated using an infrared light source is received from an infrared camera. Region-of-interest segmentation is performed on the image to generate a segmented image of consistent hand location and orientation. Feature extraction is performed on the segmented image to generate a feature-extracted vein image. Matching of the feature-extracted vein image is performed against a database of feature-extracted vein images to identify a user identity corresponding to the hand.