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Recently, ubiquitous personal devices with a fingerprint authentication function have been increasing. In such devices, there is almost no possibility of the authentication by impostors unless they are lost or stolen. However, for example, in the management of entering and leaving a building, not only the fingerprint authentication device but also the other authentication measures, such as an IC card, a key, etc., are generally used. In our previous studies, we have analyzed the authentication accuracy of the fingerprint authentication devices for personal possessions where other authentication measures are not needed. As a result, we made clear that the authentication accuracy in our method has extremely high compared with that in the marketed compact fingerprint authentication products, even if dirt, sebum, etc., are attached to the fingertip and there are scratches. In this study, we analyze the damage ratio of the fingerprint image where the genuine authentication can be conducted without problems, because the fingertip is easily got large cuts. Moreover, we analyze the impostor authentication of the fingerprint authentication devices for public possessions in the two cases of without and with other authentication measures. As a result, it is found that clearer impostor authentication can be achieved in the case of with other authentication measures. In addition, it is found that the damage ratio of the fingerprint image to conduct clearer genuine authentication without the image correction is less than 14.3%

international journal of communications, network and system sciences/international journal of communications, network, and system sciences

Improved Authentication Accuracy by Individually Set Orders of the Fractional Fourier Transform and Effects of Damage of Fingerprint Image on Authentication Accuracy