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Analysis of Fingerprint Spoofs Created from Mold Done by Burning Technique
Sochová, Terézia ; Sakin, Martin (oponent) ; Kanich, Ondřej (vedoucí práce)
This work is devoted to the production and analysis of fingerprint spoofs created from mold using a burning technique. The aim of this work is to create fingerprints spoofs from different materials and then to design and to implement an algorithm that compares spoofs with model fingerprints. Spoofs are made using beech wood molds. In order to create the fingerprints, plasteline, silicone and liquid latex are used. The analysis of the differences between fingerprint spoofs and their real fingerprints is based on the minutiae extraction and on their subsequent processing. The results of analysis are represented by three monitored metrics: number and type of minutiae, number of paired minutiae and average distance difference between fingerprint spoof minutiae and real fingerprint minutiae. The created program is tested using a database of produced fingerprint spoofs. The results of the program are compared with the results of the VeriFinger application. Both programs agreed that spoofs made by silicone are the ones of the highest quality.
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Research in Fingerprint Damage Simulations
Kanich, Ondřej ; Matyáš, Václav (oponent) ; Champod, Christophe (oponent) ; Drahanský, Martin (vedoucí práce)
The goal of this research is to develop methods for fingerprint damage simulations. In the first part of this thesis the emphasis is placed on a summary of the current knowledge of synthetic fingerprint generation and the damage to these fingerprints. Moreover, general information about fingerprints, fingerprint recognition, and phenomena that damage fingerprints including skin diseases are stated herein. This thesis contains the design and implementation of the SyFDaS application for generation and modular damaging of fingerprints. The next part is a description of methods for damage by swipe mode, narrow sensor, damaged sensor, pressure and moisture, skin distortion, warts, atopic eczema, and psoriasis. Several other types of damage, including fingerprint spoofs, are analysed. Overall, there are 43 basic damages which were visually verified. Due to damage combinations, there are 1,171 types of damage and 348,300 fingerprint images generated, which were evaluated by four different quality measurement methods.
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Presentation Attack Detection on Fingerprint Images Using Veins
Ondrušek, Tomáš ; Rydlo, Štěpán (oponent) ; Kanich, Ondřej (vedoucí práce)
This work deals with the detection of a presentation attack on a biometric fingerprint sensor capturing an image of a vein. It contains a proposal for a method of detecting a presentation attack on a sensor that uses NIR illumination to highlight a vein in a finger. The method is tested and trained on a dataset containing 294 finger images extracted from 143 pictures of hands. The method is based on extracting textural information from the image and subsequent classification using the SVM classifier. The extraction uses parallel processing and processes features from 294 fingerprint images in 25 minutes on average. Subsequent classification achieves an average detection success rate of 97 %. The work also describes the steps necessary to carry out various types of attacks on a biometric system using the vein system.
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Analysis of Fingerprint Spoofs Created from Mold Done by Burning Technique
Sochová, Terézia ; Sakin, Martin (oponent) ; Kanich, Ondřej (vedoucí práce)
This work is devoted to the production and analysis of fingerprint spoofs created from mold using a burning technique. The aim of this work is to create fingerprints spoofs from different materials and then to design and to implement an algorithm that compares spoofs with model fingerprints. Spoofs are made using beech wood molds. In order to create the fingerprints, plasteline, silicone and liquid latex are used. The analysis of the differences between fingerprint spoofs and their real fingerprints is based on the minutiae extraction and on their subsequent processing. The results of analysis are represented by three monitored metrics: number and type of minutiae, number of paired minutiae and average distance difference between fingerprint spoof minutiae and real fingerprint minutiae. The created program is tested using a database of produced fingerprint spoofs. The results of the program are compared with the results of the VeriFinger application. Both programs agreed that spoofs made by silicone are the ones of the highest quality.
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Research in Fingerprint Damage Simulations
Kanich, Ondřej ; Matyáš, Václav (oponent) ; Champod, Christophe (oponent) ; Drahanský, Martin (vedoucí práce)
The goal of this research is to develop methods for fingerprint damage simulations. In the first part of this thesis the emphasis is placed on a summary of the current knowledge of synthetic fingerprint generation and the damage to these fingerprints. Moreover, general information about fingerprints, fingerprint recognition, and phenomena that damage fingerprints including skin diseases are stated herein. This thesis contains the design and implementation of the SyFDaS application for generation and modular damaging of fingerprints. The next part is a description of methods for damage by swipe mode, narrow sensor, damaged sensor, pressure and moisture, skin distortion, warts, atopic eczema, and psoriasis. Several other types of damage, including fingerprint spoofs, are analysed. Overall, there are 43 basic damages which were visually verified. Due to damage combinations, there are 1,171 types of damage and 348,300 fingerprint images generated, which were evaluated by four different quality measurement methods.
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