With applications that range from school cafeteria payments to secure identifiers for cloud computing, palm-scanning technology uses unique vein patterns as a handy ID system. The device takes a super high-resolution infrared photograph of the vein pattern just below a person's skin. That image, between 1.5 and 2.5 inches, is recorded and digitized.
Palm Scanners Get Thumbs Up in Schools, Hospitals | Sci-Tech Today
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