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Simple text-independent voice lock - speaker verification software system
Kotulek, Milan ; Dolenský,, Jan (referee) ; Staněk, Miroslav (advisor)
A brief introduction into biometrics is described in this thesis leading to description and to design a solution of verification system using speech analysis. The designed system provides firstly basic signal processing, then vowel recognition in fluent Czech speech. For each found vowel, observed speech features are calculated. The created GUI application was tested on created speaker database and its efficiency is approximately 54 % for short testing utterances, and approx. 88 % for long testing utterances respectively.
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Processing of fingerprints
Kazík, Martin ; Hasmanda, Martin (referee) ; Říha, Kamil (advisor)
This diploma thesis deals with the identification of persons by their fingerprints. In the beginning, there is a brief overview of biometric methods. The issue of fingerprints and their automatic processing is very extensive and addresses a large amount of literature. This work describes the various stages processing fingerprints from receiving a fingerprint scan through the methods of enhancing fingerprint, binarization, the detection of minutiae to compare two fingerprints. After a short introduction of biometric techniques is briefly introduced the history of fingerprints as an instrument for identification of persons. Subsequently, there is the description of problems of obtaining fingerprints from older methods that require the transmission medium, to methods of obtaining fingerprints directly into a digital format. There are described basic principles of sensors and the principle of their function. Next part deals with methods of processing digital fingerprint images. These are methods for fingerprint image enhancement, methods for image thresholding, thinning of ridge lines, detection of global and local characteristics of the fingerprint. The next section introduces the basic methods of comparison and classification of fingerprints. The practical part describes the specific implementation of fingerprint processing chain. For each processing stage is implemented one selected method. The result is an application that allows displaying the output of each phase, the comparison of fingerprints 1:1 and also finds a fingerprint in the database, by comparing one fingerprint with many.
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Tablet data acquisition
Zvak, Martin ; Babinec, Tomáš (referee) ; Richter, Miloslav (advisor)
Reliable authorization and authentication is now becoming necessary for many everyday activities such as boarding an aircraft, doing financial transactions etc. This work deals with the possibility of proposing an appropriate method of acquisition, processing and evaluation of data from the tablet itself, focusing on the possibility of obtaining data from the graphics tablet used in conjunction with a personal computer, for the purpose of verifying identity. It contains an overview of biometrics, as independent developing science over the last decades of the 20th century to the present, a summary of the development of a graphics tablet, the current situation, a brief overview of the most popular technologies used in their construction and distribution. Furthermore, it focuses on the design and implementation of appropriate procedures to obtain data provided by the Trust tablet TB - 7300, using available software development kit for the Microsoft Tablet PC, and a comparison of WinForms and WPF model (.NET Framework), with the declaration of suitability for the use of the second one. Last but not least, according to the response from the available set of users, this work focuses on the design of appropriate types of input data, test patterns, method and application for collecting and processing data from the graphic tablet, as well as their use for the verification of the identity of the individual. Ultimately, it is possible to discuss the accuracy of the method on a set of users, its suitability for use and shortcomings. Based on the analysis of the issue, the proposed method can be declared as under-optimal - it is safe, but inaccurate with low stability and repeatability. It is also important to accent that this is just the initial proposal, the use of applications in everyday life is for current phase impossible and the transition from laboratory conditions would require further development and improvement of the process.
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Retinal Biometry for Human Recognition
Sikorová, E.
This paper deals with recognition of a person by comparing symptom sets extracted from images of the retinal vessels pattern. In the practical part there were realized algorithms for human identification with the method of nearest neighbor search (NS), extended NS including more symptoms and template matching, for which MATLAB program was used. The work includes testing of suggested programs on the biometric database of symptomatic vectors with the following evaluation.
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Finger Vein Biometric System
Bělehrádek, S.
The aim of this paper is hardware realization and testing of a simple system for biometric user authentication based on finger veins detection. Proposed biometric system is cheap and able to achieve matching accuracy (EER) of 8,96 % for a testing group of 12 people. Crosscorrelation of vein patterns is used for comparison of extracted features with templates. This approach gives interesting results.
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Cashless society
Mucha, Petr ; Schlossberger, Otakar (advisor) ; Mazáček, David (referee)
This thesis is aimed at cashless payments which have recently gained worldwide significance. Cash is being gradually phased-out by card transactions and mobile payments via non-bank provider of payment services. A question arises of what would happen if cash would disappear in its entirety and we would find ourselves in a "cashless society". This topic which at first glance appears to be utopian is the subject of this thesis. The first part compares the market of cashless payments in the Czech Republic and in northern Europe (which is amongst the most developed), in particular with regard to the use of cards and mobile payments. The second part is concerned with the phenomenon of shadow economy and the influence of cashless payments on its volume. Concrete recommendations for the Czech economy are also the part of this chapter. The final part hits the essence of the issue and deals with concrete pros and cons of going cashless. The chapter is systematically divided into three parts - security, cost-benefit analysis and legal aspects.
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Biometric systems
Lisý, David ; Sigmund, Tomáš (advisor) ; Čermák, Igor (referee)
This bachelor work is about biometrics and it´s application in practice. Theoretical part describes the main principles of biometrics and all of the common technologies and methods. Practical part consists of analysis and assessment of applying biometrics in Czech radio building in Prague. Practical part covers even description and comparison of potentially suitable products. That comes with choice of the best one, as a conclusion of practical part. The main goal of this work is to provide general and basic knowledge about biometrics including demonstration of analysis it´s application in practice.
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Security elements of electronic banking
Blaha, Ondřej ; Albrecht, Jakub (advisor) ; Voříšek, Jiří (referee)
The aim of my bachelorel thesis is to give a comprehensive overview of the electronic banking area and its security, with main focus on safety features used for authentication. The theses describes the available forms of electronic banking and the principles and elements of authentication methods. The main contribution of this work is the analysis of the environment of electronic banking ČSOB Bank and evaluation of authentication methods that the bank offers its clients. The result is an assessment of the current security status and suggestions what should ČSOB bank focus on in this area.
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Biometric systems - possibilities and dangers
Petržilka, Jakub ; Sklenák, Vilém (advisor) ; Palovský, Radomír (referee)
This bachelor thesis is focused on biometric methods, particularly on fingerprint recognition. First part of thesis places biometric into other methods of people's identification. Identification by token and by knowledge. It also describes the beginning and evolution of biometric. The theoretical part also closely clarify working with data and different view on the biometric systems. The following part of the thesis defines the basic principles of using biometric systems, counting FAR and FRR indicators and weaknesses of biometric. Practical part is divided into two sections. First part contains process how to fool biometric systems, which are based on fingerprint scanning. The main objectives were to find out level of trust in biometric systems and research of the biometric market. Objectives were achieved through a self-questionnaire survey. Final part predicts probable future biometric development.
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The Use of Biometrics in payments
Kašparová, Žaneta ; Veber, Jaromír (advisor) ; Sigmund, Tomáš (referee)
Presented bachelor thesis deals with the use of biometrics, particularly in payment transactions. The aim of this thesis is to analyse possibilities of using biometrics in payment transactions. Characteristics of biometric methods as well as identification of contemporary trends connected with biometric payment are included in this paper. The benefit of this thesis is a realization of research in order to analyse attitude of young generation to biometric payment in the Czech Republic.
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