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Your fingerprint is actually 3D − research into holograms could improve forensic fingerprint analysis

  • Written by Partha Banerjee, Professor of Electrical and Computer Engineering, University of Dayton
Your fingerprint is actually 3D − research into holograms could improve forensic fingerprint analysisFingerprints have been used as unique identifiers for decades. AP Photo/Patrick Semansky

When you use your fingerprint to unlock your smartphone, your phone is looking at a two-dimensional pattern to determine whether it’s the correct fingerprint before it unlocks for you. But the imprint your finger leaves on the surface of the button is...

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