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Weapon Detection in an Image
Debnár, Pavol ; Drahanský, Martin (referee) ; Dvořák, Michal (advisor)
This thesis is focused on the topic of firearms detection in images. In the theoretic section, the explanation of the term firearm is covered, along with the definition of the most prevalent firearm categories. Then the concept of image noise and the ways it can hinder image detection is covered, along with ways of reducing it. Next, algorithms of image detection are introduced - first those which operate on the basis of neural nets - such as Convolutional Neural Nets and Single Shot Multibox Detection. The next section discusses classic algorithms of object detection such as HOG+SVM and SURF. After that, information on the used libraries and software is provided. The experimental part covers the designed algorithm and database. For detection, the HOG+SVM, SURF and SSD algorithms were used. All the algorithms are tested on the database and, if possible, on video. A final evaluation is provided, along with possible future development options.
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Approach to Gun Control Issue in Canada Under Stephen Harper's Governance (2006-2015)
Sochor, Jan ; Fiřtová, Magdalena (advisor) ; Kozák, Kryštof (referee)
This bachelor thesis deals with the change of argument in the debate of gun control issue in Canada during Stephen Harper's governance. Gun control approach in Canada went through significant changes throughout the history. Until 1990s gun laws were mostly responsive to the events of the 20th century. The change of gun control approach occured during Harper's conservative governance. Since then, the safety issue of the gun control approach has started to be less prominent at the expense of the financial issue. That is due to strict gun laws which brought considerable financial expenses. The method of content analysis which was used in this thesis utilizes particular speeches of Members of Canadian Parliament when taking into consideration other primary sources such as official statistics and laws. The first part of the thesis deals with the approach towards firearms since 1867 until Stephen Harper's governance in 2006. This chapter also points out the reactivity and safety reasons why those particular laws were adopted. The second chapter compares selected speeches of Members of Parliament in order to prove the fundamental research question of this thesis, which is: Has the financial argument replaced safety argument presented by Conservative party during the reported period? The bachelor thesis...
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Gun Culture of Switzerland and the United Kingdom: Significance of Possession or Ban on Small Firearms for Democracy and Safety
Bock, Jan ; Weiss, Tomáš (advisor) ; Váška, Jan (referee)
On the example of two developed democratic states, the United Kingdom and Switzerland, gun culture phenomenon is being studied which means the relationship of society and state towards small firearms, expectations and fears of guns, meaning of the right to obtain, possess and bear guns in a modern democratic society, power and safety aspects of gun culture in both countries. A high explanatory power on gun culture is encompassed in a quantitative indicator of the ratio of injury numbers caused by firearms per capita to the total number of firearms per capita. Britain radically restricted the right to gun with the aim to increase safety, however with not fully convincing results. Switzerland by contrast made this right a key element of its defense strategy, but facilitation effect of easy access to arms has its negative impacts too. From the qualitative perspective, civilians' right to guns can be seen as indicator of state's trust in its citizens, an indicator of distribution of power between citizens and the state. The unanswered question is how to determine an optimal level of gun regulation while preserving one of the key rights of a free individual, the right to defend his/her legitimate interests.
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Parametrization of substitute material in caverns standard and special military munitions
Mucha, Pavel ; Jelen, Karel (advisor) ; Barták, Erik (referee)
Title of thesis: Ballistic cavity origin characterisation; auxiliary materials of a standardised or a special military ammunition. Aim of thesis: The goal of this work is to provide a regularising framework suggesting structural changes of the auxiliary materials in the impact zone of the various ammunition. Methods: A ballistic experiment based upon the piercing test of various ammunition types. For these tests different barrier materials were used (e.g. glycerine, soap, ballistic gel). A comparative study of the various physical aspects of the cavities was exercised. Several diagnostic methods such as dimensions verification, water volume measurement, projectile speed radar check, computer tomography or the high speed camera were used to determine the secondary cavity specifics. Results: This thesis identified several key parameters determining projectile behaviour in the auxiliary materials. The major determinants were: speed, position or homogeneity of the projectile on the impact. However the major parameter defining the "injury level" was the concluded that the highest Injury level has the prohibited "fragmentation effect ammunition". On the other hand it was pointed out that so called "Black Mamba" projectiles have lower injury effect, although manufactore claims otherwise. Key words:...
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Castles of Hussites Era
Sýkora, Milan ; Klápště, Jan (advisor) ; Plaček, Miroslav (referee)
This thesis deals with the Czech castles during the Hussite Wars (1419-1436 and 1467-1485). Its aim was to explore and evaluate a group of selected objects and compare the results with the development of castle architecture in Europe. Research has shown that - in connection with the introduction of early guns in the end of the 14th century - there was a radical change of military tactics and castle architecture. Castles were equipped with a new type of fortifications that were not only resistant to artillery, but also allowed for their efficient firearm defense. Along with the penetration of the Hussite troops into neighboring countries, there came the spread of their military knowledge, which has gradually adopted in entire Central Europe. The local military architecture stands at the beginning of the Medieval fort architecture and precedes, by nearly a hundred years, the Italian and German fortifications. Key-words: Central Europe - Late Middle Age - Early Modern Age - Castle - Fortress - Firearms
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Firearms in the Middle East. Beginnings, Production and Use.
Beran, Pavel ; Veselý, Rudolf (advisor) ; Bouzek, Jan (referee)
This thesis deals with the development of the hand-held firearms in the Middle East with an emphasis on the period from the 15th to the end of the 18th century. In some passages it also marginally mentions the early 19th century. The first part of the thesis concentrates on the development of firearms in a historical context. The focus is primarily on the Ottoman Empire and partially on Egypt. Among other topics it also analyses the practical use of firearms and the related military tactics including the presence of firearms in major battles, as shown on contemporary paintings and miniatures. In the second part the author deals with the technical development of hand-held firearms. This section focuses mostly on the components of firearms and their development. This section also in some degree deals with the artistic aspects of the preserved firearms. The supplements consist of numerous photographs of the preserved exhibits in Czech and foreign collections and also of other visual materials. Keywords firearms, gunpowder, Middle East, Ottoman Empire, Mamluks, Egypt, flintlock, matchlock, miquelet, stock, barrel, decoration, miniatures
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Firearms in the Middle East. Beginnings, Production and Use.
Beran, Pavel ; Bouzek, Jan (advisor)
This thesis deals with the development of the hand-held firearms in the Middle East with an emphasis on the period from the 15th to the end of the 18th century. In some passages it also marginally mentions the early 19th century. The first part of the thesis concentrates on the development of firearms in a historical context. The focus is primarily on the Ottoman Empire and partially on Egypt. Among other topics it also analyses the practical use of firearms and the related military tactics including the presence of firearms in major battles, as shown on contemporary paintings and miniatures. In the second part the author deals with the technical development of hand-held firearms. This section focuses mostly on the components of firearms and their development. This section also in some degree deals with the artistic aspects of the preserved firearms. The supplements consist of numerous photographs of the preserved exhibits in Czech and foreign collections and also of other visual materials. Keywords firearms, gunpowder, Middle East, Ottoman Empire, Mamluks, Egypt, flintlock, matchlock, miquelet, stock, barrel, decoration, miniatures
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Forensic ballistics
Bohoněk, Miloš ; Konrád, Zdeněk (advisor) ; Krupička, Jiří (referee)
The purpose of this thesis is to provide a general introduction to the field of forensic ballistics. The thesis is based on the analysis and comparison of numerous Czech and international monographies and articles, as well as on findings derived from a supervised visit to the Institute of Criminalistics Prague. As such, it provides a compact and up-to-date overview of forensic ballistics in the Czech Republic. The thesis is composed of eight chapters followed by a bibliography, an abstract and keywords. Chapter One is introductory and lays out the purpose of the thesis, the goals and the methods used. Chapter Two takes a closer look at the history and evolution of forensic ballistics, both abroad and in Czechoslovakia. Chapter Three answers the question "What is forensic ballistics?" in detail. It contains a definition of forensic ballistics and provides a reader with information about the main purpose of forensic ballistics. Chapters Four to Six are the core of the thesis. Chapter four deals with the objects examined by the forensic ballistics and is therefore subdivided into four parts, addressing each object separately: firearms, ammunition, objects struck by a bullet, and further material and immaterial objects. Chapter Five concentrates on ballistic marks and as such is subdivided into five...
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Problems of narrowly specialized technical translation: electronic dictionary of technical terms related to modern firearms, ammunition and their accessories
SEDLÁČEK, Tomáš
This master´s thesis collects vocabulary from the field of modern firearms and their accessories in English and Czech languages and forms it into a dictionary which compares the specialized translation with the translation that is provided by a technical dictionary. The theoretical part focuses on explaining the basic terminology from the field of lexicography, it introduces a brief look at the development and typology of dictionaries and the process of forming a dictionary. Detailed examination of technical and electronic dictionaries is provided and description of the specific aspects of firearm terminology. The practical part presents the specialized resources used in this work, the process of creating and layout of the dictionary which is the final product of this thesis. The conclusion summarizes the difference between the basic translation and the specialized translation and gives evidence of these differences by providing examples from the created dictionary.
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