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Fingerprint Damage Simulation
Kanich, Ondřej ; Doležel, Michal (oponent) ; Drahanský, Martin (vedoucí práce)
The goal of this thesis is to design and implement an application for the synthetic fingerprint damage simulation. When I studied the literature, my focus was laid mainly on the project SFinGe which is a pioneer in this area. I specified the area of interest to optical or capacitive touch sensors and the fingerprint damage caused by the pressure and the moisture, the damage and the dirt on the sensor and the skin deformation. I designed a way how to implement these factors which damage the synthetic fingerprint so that the fingerprint looks like a real one. These methods use morphological operators and a model of plastic distortion in fingerprint images. The most successful methods result in 62.5% worse score in a commercial product compared to the original image and in one class worse result according to the standard of fingerprint image quality. The main benefit of this work is damaging synthetic fingerprints so that they are proven to be worse than the original and the design of an application that allows an expansion by other methods.

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