13) A method for identifying features of a friction ridge signature of a subject based on information representing a topography of friction ridges of the subject, the friction ridges of the subject varying in elevation and forming a friction ridge pattern having three dimensional features reflected in the friction ridge signature of the subject, the method being implemented by one or more processors, the method comprising:
- receiving information representing the three-dimensional topography of the friction ridges of the subject;
- identifying one or more level-three features of the friction ridge signature of the subject based on the information representing the three-dimensional topography of the friction ridges of the subject.