National Repository of Grey Literature 37 records found  beginprevious21 - 30next  jump to record: Search took 0.00 seconds. 
Biometric fingerprint identification
Dašek, Filip ; Vítek, Martin (referee) ; Smital, Lukáš (advisor)
In biometrics we use distinctive physical features for identification and verification of identity. The most famous technique is identification by fingerprints. This technique use unique structure created by papillary lines for unambiguous identification. Thesis contains methods which were created throughout the years for analysis and adjustments of fingerprint. The algorithm is based on compairng two pairs of minitua and calculating transform matrix for correct alignment
Dactylography - past, present and future
Zapletalová, Karolína ; Krupička, Jiří (advisor) ; Konrád, Zdeněk (referee)
The aim of this thesis is to comprehensively analyze and describe one of the oldest methods of individual identification of individuals, which originates in ancient civilizations and consists of identifying a person on the basis of unique drawings of his papillary terrain. The dactyloscopy will be viewed primarily from a criminalistic perspective, although the text also deals with its expansion and use in other areas of human life. This is also a current trend, whose tendencies can be expected in the future. The thesis is divided into three basic chapters - history, present, future, which will gradually summarize the whole issue of this established forensic science. The text is supplemented with pictures and photographs with regard to practical use of this method. The first part of the thesis deals with the history of dactyloscopy from the discovery of papillary lines by ancient cultures to the gradual introduction of scientific approach to this discipline, either from physiological point of view or later from the criminalistic point of view. The text focuses mainly on important personalities who have helped to develop dactyloscopy and put it into practice. At the end of this part, the historical background and the development of the doctrine of papillary lines in the Czech Republic are also...
Basic fingerprint liveness detection
Horák, Tomáš ; Smital, Lukáš (referee) ; Kašpar, Jakub (advisor)
This work focuses on recognizing fingerprints liveness based purely on software-methods evaluating symptoms from just one fingerprint image. At first in this work was described the issue of biometry as such, comparing the advantages and disadvantages of such systems. Next part deal with more detailed process of fingerprint biometry including papillary lines and overall fingerprints as such. In the next phase, the problems and utilization of both software and hardware methods are discussed, including principles of individual approaches. This part is followed by a selection of used fingertip symptoms. This is followed by the practical part and the LivDet 2011 database, which was used for finger recognition. In the practical part is also described the used neural network capturing minor differences in fingerprints according to 13 symptoms.
Basic fingerprint liveness detection
Horák, Tomáš ; Smital, Lukáš (referee) ; Kašpar, Jakub (advisor)
Biometric data is unique, safe and often used to protect information. Even in some cases, detectors can be fooled, and therefore liveness is needed to check. This work focuses on the basic recognition of the liveliness of the fingerprint. Only one finger image is used. For perfect recognition, you need to compare the prints, so have more than one print, and that's why this detection is very demanding. Pre-processing was done with a binary segmentation mask. Methods using gray scale ratios, mean, standard deviations or histogram equalization were also used. All the methods were done on the LivDet 2011 database, in the Matlab environment and the goal was to recognize a live fingerprints from a false ones.
Fingerprinting - Past, Present and Future
Janotová, Martina ; Krupička, Jiří (advisor) ; Konrád, Zdeněk (referee)
1 Abstract Fingerprinting - Past, Present and Future The objective of the presented diploma thesis is to provide a comprehensive overview of findings in fingerprints area. Fingerprinting is a unique method enabling quick, inexpensive and reliable personal identification. To provide a comprehensive understanding of the presented issue, fingerprint reputation as ever-changing and continuously developing method is put into contrast with its contradictions and current problems. The first part of the thesis describes roots and genesis of the method from its beginnings in ancient realms up to date. The process of shaping of the knowledge in the field of fingerprints into a science is presented through the works of the most prominent fingerprints personalities. Despite the difficult beginnings, fingerprints finally reached the position of trustworthy and respectful area of forensic science. Due to that; the historical part follows the journey of fingerprints evidence into the police investigation and court rooms. Final point brings an attention to the establishment of fingerprinting in Czech criminal investigation. The main part of the thesis is dedicated to the practical aspect of fingerprints expertise. To provide a deep level of understanding, particular role of fingerprints in criminal investigations and its...
Fingerprinting - Past, Present and Future
Semera, Lukáš ; Krupička, Jiří (advisor) ; Konrád, Zdeněk (referee)
FINGERPRINTING - PAST, PRESENT AND FUTURE The objective of this thesis is to present the forensic fingerprinting as a scientific method which, although in comparison with other forensic sciences being one of the oldest, is not out-dated at all, quite to the contrary - it presents an ever-changing and continuously developing field of science. The objective is approached through three distinctive and yet intertwined chapters corresponding with the title of the thesis - past, present and future of the fingerprinting. They are also designed, at least in part, to capture this constant forward motion. Accordingly, the first chapter aims to describe briefly scientific roots of the method, the way it drew in its beginnings from various scientific discoveries, inspired by the rise of Darwinism. Particular emphasis is put on the description of the formulation and empirical confirmation of three physiological laws of fingerprinting that even today serve as its grounds. The second chapter deals with and tries to describe the current state of knowledge and particular methods used in detection, development and preservation of fingerprints, especially latent ones. To do this it seems to be necessary to describe briefly the anatomy and physiology of friction ridge skin, as it enables to fully comprehend the way in...
Dactylography - History, Present and Future
Jelínek, Milan ; Konrád, Zdeněk (advisor) ; Krupička, Jiří (referee)
Dactylography - History, Present and Future This thesis introduces one of the most important identification methods - dactylography (or dactyloscopy), e.g. the method based on analysis and classification of patterns of friction ridges (especially fingerprints). This thesis consists of three main chapters considering its name. The first chapter describes interesting history of this method from first discoveries, through various breakthroughs, to reaching the status of forensic evidence. This chapter mainly focuses on individual pioneers on the field of dactylography, but tells as well the story of Czechoslovak dactylography and reminds cases, that were very close to prove this method wrong at its fragile beginning. The second chapter focuses on the present of dactylography. This chapter starts with three basic laws of dactylography, but the essence of it lies in the term "dactyloscopic evidence". The methods of revelation, analysis and preservation of dactyloscopic evidence are described here as well as their comparison. If it comes to analysis, I am trying to compare two approaches used today (holistic and numerical) and offer my opinion which one is better. Also, I am trying to answer the question, if it is possible to tell how old the dactyloscopic evidence is. The third and the last chapter...
Concept and nature of fingerprinting
Šetelíková, Alice ; Štourač, Petr (advisor) ; Konrád, Zdeněk (referee)
Concept and nature of dactyloscopy The aim of the thesis is to provide a comprehensive view on the issue of dactyloscopy. Especially, to introduce readers about dactyloscopy and institutes related to this method. The thesis is systematically divided into several chapters. The thesis is complemented by visual and textual appendices for the better and easier understanding of the various institutes. The introduction contains basic information about dactyloscopy and the outline of what the thesis will contain. Chapter One deals with the subject, concept and importance of the dactyloscopy. Chapter Two is divided into two parts. The first subchapter concerns the historical development of forensic dactyloscopy in the world. First of all, there are described the beginnings of knowledge of fingerprints and then personalities and their influence on the development of the dactyloscopy. As an example of these significant personalities, William James Herschel, Henry Faulds or Juan Vucetich can be cited. The second subchapter is focused on the development of the dactyloscopy in the territory of the Czech countries. In particular, the place is given for Jan Evangelista Purkyně well known as a pioneer in the area of papilary ridges. Because it was him who as the first described and classified the papilary ridges....
Fingerprint biometry
Kubica, Roman ; Jiřík, Radovan (referee) ; Fedra, Petr (advisor)
The first part of this thesis deals with principles of evaluation biometric methods of scanning fingerprint images. Classification and description of single methods, separated into groups depending on the algorithm of comparison of template and image from database are included. In the next part is thesis focused on evaluation based on the success of experimental results and description of available databases. The main purpose of this thesis is creation of computer program for identification of fingerprint image in the programming interface MATLAB®. Realized identification algorithm is based on computing of Poincare index and extraction of singular points and minutiae. Performance of the program is tested on generated database and evaluated by index FAR and FRR.

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