Figure 1.
Some examples of fingerprint images in our database.
(a) are fingerprint images of four fingers of the first twin, and (b) are the fingerprint images of the corresponding four fingers of his/her identical twin. (c) and (d) show fingerprint images from a non-identical twin pair.
Figure 2.
An example of fingerprint enhancement and minutiae extraction by P071 method.
(a) Original fingerprint; (b) Enhancement results of (a); (c) Minutiae extraction results of (a).
Figure 3.
An example of fingerprint enhancement and minutiae extraction with user interface of VeriFinger 6.1.
Figure 4.
Score distributions for genuine, identical-twin imposter and non-twin imposter by P071 method.
Figure 5.
ROC curves for identical-twin and non-twin matchings by P071 method.
Table 1.
The relationship between FAR and matching threshold.
Figure 6.
Score distributions for (a) genuine, (b) identical-twin imposter and (c) non-twin imposter via VeriFinger 6.1 SDK.
Table 2.
Performance of identical-twin and non-twin matchings using VeriFinger 6.1 SDK in terms of EER, FMR100 and FMR1000.
Table 3.
The probability distribution of five major fingerprint types/classes for all the fingers in our database.
Table 4.
The fraction of the same fingerprint type between the corresponding fingers of identical twins.
Table 5.
The probability distribution of five major fingerprint types/classes for the fingers of identical twins which have same fingerprint type.
Table 6.
The fraction of the same fingerprint type for each of the four fingers of identical twins.
Table 7.
The comparing results summary of Jain, Han, Srihari, Sun and our methods.