Soon, you may not only be able to hear your heart sing, but you may also be able to use the melody to uniquely identify yourself.
Christina Perri – A Thousand Years (Lyrics)
Spanish and Iranian researchers have proposed using heartbeat as a biometric tool by capturing its musical characteristics, such as rhythm and pitch, to uniquely identify people. In tests, the system achieved an accuracy rate of 99.6 percent.
“We could deploy this solution in a building's access control system, where pre-registered users provide a template (a short ECG recording) to enter the facilities,” the researchers write in their paper, illustrating a use case for their heartbeat-based biometric system.
The researchers admit that research into heart and even brain signals as effective biometric identifiers is not unique. However, identification based on certain unique features of the heartbeat has not been attempted before.