Communications of the ACM
Ears, Grips, and Fists Take On Mobile Phone ser Id
Yahoo Labs researchers have developed a biometric authentication system that could secure smartphones via its ability to recognize users' biometric features.
Credit: Christian Holz
Yahoo Labs' Bodyprint is a biometric authentication system that could be used to replace PIN codes for smartphones, via its ability to recognize users' biometric features--such as ears, palm grips, and fists--when they are pressed against an off-the-shelf capacitive touchscreen.
The researchers deployed Bodyprint on an LG Nexus 5 phone equipped with a Synaptics ClearPad 3350 touch sensor, and engaged 12 participants to test the system for each of five poses. The users held the Nexus 5 phone and conducted 12 trial repetitions, placing the phone on a table between trials. Bodyprint successfully identified users with 99.5-percent accuracy with a false rejection rate of 26.8 percent across all body parts, but as low as 7.8 percent for ear-only authentication.
"In the case that future touchscreens support higher input resolutions, up to a point where they may detect the fine structure of fingerprints, Bodyprint will readily incorporate the higher level of detail of sensor data, which will not only extend our approach to further body parts, but likely reduce false rejection rates at the same high levels of authentication precision," the researchers note.
From Phys.Org
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