Accuracy Enhancement for Ear Acoustic Authentication Using Between-class Features. (arXiv:2205.08778v1 [cs.CR])

In existing biometric authentication methods, the user must perform an
authentication operation such as placing a finger in a scanner or facing a
camera. With ear acoustic authentication, acoustic characteristics of the ear
canal are used as biometric information. Therefore, a person wearing earphones
does not need to perform any authentication operation. In biometric
authentication, it is necessary to minimize the false acceptance rate (FAR) so
that no unauthorized user is misidentified as an authorized user. However, if
the FAR …

acoustic authentication class features