A team of researchers from Yahoo Labs have created a new technology called ‘Bodyprint’ that turns your smartphone’s touchscreen display into a biometric scanner.
Bodyprint, the biometric authentication system detects users’ biometric features using the same type of capacitive sensing, but uses the touchscreen as the image sensor instead. While the input resolution of a touchscreen is ~6 dpi, the surface area is larger, allowing the touch sensor to scan users’ body parts, such as ears, fingers, fists, and palms by pressing them against the display.
Bodyprint identifies users through the body parts and characteristic poses when touching the screen. Bodyprint obtains the capacitive image from the touch chip to analyze touch imagesinstead of 2D touch locations that devices traditionally process.
Bodyprint achieves 99.8% authentication precision with a false-rejection rate of 1 out of 13, thereby bringing reliable biometric user authentication to a vast number of commodity devices.