Most fingerprint readers require physical contact. AIRprint can scan a print at a resolution of 500 pixels per inch-enough to accurately identify an individual from six feet away. Engineers based the software on satellite image-processing programs: resolving the ridges of a fingerprint at six feet is actually quite similar to resolving a car or building from orbit. With AIRprint, people could move throughout secure facilities and sterile labs without touching a pad or surface for access.
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