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Comparison of VP9 and H.265 encoding standards
Fendrich, Vítězslav ; Boleček, Libor (referee) ; Polák, Ladislav (advisor)
This bachelor thesis deals with a comparison of the features of video coding standards VP9 and HEVC (H.265), developed to encoding videos mainly in high resolution. Theoretical part of this work is focused on the presentation and description of both VP9 and H.265 video codecs. Furthermore, objective and subjective metrics for video quality assessment are briefly described. Practical part of this work deals with an evaluation of the quality of video sequences, encoded by VP9 and H.265, with objective metrics and subjective metric. The description of the encoding process using VP9 and H.265 is also included. Proceeding of subjective tests in laboratory conditions is also described. Achieved results are clearly presented and discussed.
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Tester for structured cabling
Starý, František ; Tejkal, Vladimír (referee) ; Šporik, Jan (advisor)
Tester strukturované kabeláže je zařízení, jenž je schopné určit jak typ zapojení (v případě UTP pro ethernet přímé,křížené, . . . )nebo chybu v zapojení, tak různé parametry kabeláže, mezi něž můžou patřit: přeslechy typu NEXT (přeslech na blízkém konci), FEXT (přeslech na vzdáleném konci), tak jejich modifikace, dále to může být i délka kabelže, útlum, . . . .
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Chord structure detection in music recordings
Kučera, Ondřej ; Miklánek, Štěpán (referee) ; Ištvánek, Matěj (advisor)
This thesis deals with music information retrieval, namely automatic chord recognition in audio recordings. The thesis defines the concepts of chord and chroma features and describes the methods of converting the signal from the time domain to the frequency domain. The thesis explores methods for automatic chord detection; the state-of-the-art methods are based on deep learning. The thesis includes a system implemented in Python that allows chord detection from audio recordings. Individual recordings and associated chord labels can be visualized. The system offers a choice of methods for chord recognition – a method based on chord templates, a method using deep chroma vectors, and a method based on a convolutional neural network. The results of the methods are evaluated on a multi-genre dataset compiled from freely available annotations and recordings.
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Anthropometric factors of Czech artillery soldiers
Šimsa, Jáchym ; Sýkora, Karel (advisor) ; Vokounová, Šárka (referee)
Title: Anthropometric factors of Czech artillery soldiers Objectives: The aim of this paper is to evaluate somatotype and body composition of Czech artillery soldiers. It compares three different methods of determining body fat and searches for an easily measurable and reliable predictor of low bone density, whereas evaluating correlations between selected anthropometric factors. Methods: Members of the 13th Artillery Regiment Jince were divided into three groups according to their classification, after which a stratified selection was used to maintain appropriate ratio of the groups. The study involved 189 men and 20 women (age 31.7 ± 6.4 years; height 178.4 ± 7.7 cm; weight 83.8 ± 13.6 kg). All participants were active professional soldiers at the time of the measurement. The data were obtained in the Jince Military Base and in the biomedical laboratory at the Faculty of Physical Education and Sports of Charles University. Each volunteer underwent four procedures - Heath- Carter somatotyping, Durnin-Womersley body fat estimation, a detailed bioelectrical impedance analysis (BIA) using Tanita MC-980, and a full-body dual-energy X-ray absorptiometry (DXA) using Horizon System. To determine mutual relations, Kendall rank correlation coefficient was used and the level of significance was set at p =...
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The Czech-German Military-Security Cooperation vs. the Arising Strategic Culture of the Czech Republic
Stojanovová, Kamila ; Handl, Vladimír (advisor) ; Dvořák, Pavel (referee)
This bachelor thesis depicts the Czech-German military-security cooperation in context of the security cultures of both countries. It focuses on the specific German strategic culture, however, the process of emerging strategic culture in the case of Czech Republic as a possible limiting factor for the military cooperation with Germany has also been pointed out. The theoretical base of this work are the concepts of political- military culture from Thomas U. Berger and strategic culture from Kerry Longhurst. The key criteria for the compatibility-analysis of both strategic cultures are the historical experience with the use of military force, the attitudes to army and use of force across the political elite, in the public opinion and in strategic papers, and the legitimation process of military missions. According to this, the aim of the work is to find the reason why in the period prior to the accession of Czech Republic to NATO the cooperation in the political and practical spheres didn't take place in the same intensity. At the same time, it tries to find the reason why the participation of the Czech Army in PRT Faizabad has been the only significant moment in the military cooperation with Germany after the NATO-accession in 1999. However, this work doesn't leave out the recent development, which...
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Reforms of the ACZ after the NATO accession (comparison with selected armies)
Křikava, Richard ; Kofroň, Jan (advisor) ; Bahenský, Vojtěch (referee)
This bachelor's thesis, Reforms of the ACZ after the NATO accession (comparison with selected armies), concerns with development of armies of Czech Republic, Poland and Finland after Cold war. Goals of this thesis are to find out which reforms ACZ undergone after joining NATO, if these reforms are present in other armies, especially in case of Armed forces of Republic of Poland and if membership in NATO decreases combat ability of member armies. Attention will be focused especially on state of armies after joining NATO. The work will analyze the development of military reforms of each army. Based on this analysis, the impact of reforms on armies in question will be evaluated and the combat capabilities of the armies in connection with NATO will be assessed.
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Small State in NATO: Arms procurement in the Czech Armed Forces
Křikava, Richard ; Kučera, Tomáš (advisor) ; Ludvík, Jan (referee)
This diploma thesis is puzzled with influence of NATO on Army of Czech Republic (ACR)'s armaments and if this influence is key factor in decision making regarding new acquisition projects or if other factors have bigger impact on decision making in question. NATO with the USA as its main sponsor is more benevolent than Warsaw Pact of which The Czech Republic was part during Cold War. Even though we can observe attempts to force member states into increasing their defense budgets from position of power, the main principle in new armament acquisition is standardization, which is based on semi-voluntary bases. However, in case of The Czech Republic standardization is not starting factor for new acquisition project. Change in security environment after Russian aggression in Ukraine in 2014 forced states to into increasing their defense budgets, which was manifested itself in summit in Wales in 2014, where NATO member states promised to allocate 2% of GDP by 2024. However, it was observed that not all states will meet this deadline and that size of state do not play significant role. Increasing of defense budget allowed ACR to start long awaited modernization projects. This diploma thesis found that not NATO but outdated equipment with fear from being dependent on Russian provisioning plays a key role.
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Electronic Warfare: Great Powers Perspective and the Implications for the Czech Armed Forces
Feryna, Jan ; Střítecký, Vít (advisor) ; Špelda, Petr (referee)
Electronic Warfare has, in recent years, become a key field in modern armed forces. After wars in Afghanistan, Iraq, and experience from conflicts in Ukraine and Syria, Western armed forces turned their attention to the field of Electronic Warfare. The most powerful armed forces of the world are being modernized under the Network-Centric Warfare and Multi-Domain Operations concepts based on real-time data-sharing and communications in the Electromagnetic spectrum. This master thesis deals with Great Powers perspectives (the US, Russia, and Israel), lessons learned from the conflicts mentioned above in Ukraine and Syria, compares it with doctrinal documents of the Czech Armed Forces, and identifies lessons for Czech Armed Forces. The main goal of this thesis is to identify lessons learned for the Czech Armed Forces and key priorities in modernization for the Czech Armed forces to be prepared for future threats and battlefield. Based on the discussed approaches and conflicts, the author identifies the following implications. There is a need to update Czech doctrinal documents. Czech Armed Forces should not focus only on the modernization of special Electronic Warfare units but to introduce the field of Electronic Warfare across the Armed forces. Czech Air Force needs to be equipped with offensive...
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Implementation of physical training in selected units of the Army of the Czech Republic
Rozsypal, Karel ; Thiel, Dan (advisor) ; Prokešová, Eva (referee)
Title Realization of physical training for members of selected Army Czech Republic units. Objective The aim of the thesis is to find out the current state of realization of physical training for soldiers of the Army of the Czech Republic. Methods The questionnaire survey was attended by 114 members of selected ACR units. The output of the questionnaire was to find out the current state of physical training for ACR soldiers. Units were selected based on a simple random selection. For the evaluation of the questionnaires, the same answers were added, which were then inserted into the round and column graphs and expressed as a percentage. The statistical hypotheses on three selected research questions were answered using statistics. The statistics were performed using a Wilcoxon single-pass test, where: if the p-value is less than 0.05, the alternative hypothesis is confirmed at a risk of error of no more than 5%; if the p-value is greater than 0.05, and the zero hypothesis is confirmed. The actual status will be compared with the assumed status according to NVMO 12/2011. Results The first research question was answered using two hypotheses. For 1H, at the significance level of 0.05, the dependence of the frequency of the basic body preparation on the body to which the soldier belongs is proved. At...
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Reforms of the ACZ after the NATO accession (comparison with selected armies)
Křikava, Richard ; Kofroň, Jan (advisor) ; Bahenský, Vojtěch (referee)
This bachelor's thesis, Reforms of the ACZ after the NATO accession (comparison with selected armies), concerns with development of armies of Czech Republic, Poland and Finland after Cold war. Goals of this thesis are to find out which reforms ACZ undergone after joining NATO, if these reforms are present in other armies, especially in case of Armed forces of Republic of Poland and if membership in NATO decreases combat ability of member armies. Attention will be focused especially on state of armies after joining NATO. The work will analyze the development of military reforms of each army. Based on this analysis, the impact of reforms on armies in question will be evaluated and the combat capabilities of the armies in connection with NATO will be assessed.
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