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Creation of the thematic map in Kokeš
Blaško, Erik ; Matějík, Miroslav (referee) ; Ježek, Jiří (advisor)
In geodesy, we often meet the problem with problematic interpretation or transfering measured data from the terrain to the correct form, where all of the collected informations should be clear and understandable and they also should be in the appropriate form with some level of expertise, simpleness and completness. Customer then could have a high-quality product which may be used for his own goals. This bachelor's thesis is divided systematically and it will meet step-by-step each phase of thematical map creation and with topics like locality selection, preparations, field exploration, building of new point field, measure in terrain, processing data and creation of thematical map in given geodetic software.
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Detection and mitigation of cyber attacks at local area networks
Racka, Jan ; Lieskovan, Tomáš (referee) ; Gerlich, Tomáš (advisor)
The bachelor thesis is focused on the detection and mitigation of flood attacks in local area networks. The thesis can be divided into two parts. In the theoretical part, first flooding attacks are described. Then, the problem of attack detection is discussed in depth, including the implemented detection methods. Subsequently, the classification of detection tools by location is discussed and examples of detection tools are given. The last theoretical section is devoted to network mapping methods and topology detection tools. In the practical part, the design of the IDS and the test network is discussed. The network consists of three end devices namely: the IDS, the victim and the attacker. A Mikrotik router is used to ensure connectivity between all the devices. The IDS has been implemented in Python and is composed of individual modules that extend its functionality. The most important module is the detection module, which contains detection methods against SYN Flood, UDP Flood, ICMP Flood attacks and one universal comprehensive method against all flood attacks. The ARP Scan module allowed the IDS to map the network and use ARP queries to detect the presence of endpoint devices in the network. The learning module made it easier to set up rules for each detection method by monitoring network traffic over a period of time. It then determines appropriate rule values from the detected data. The SSH module provided IDS with the ability to proactively respond to attacks and disconnect the attacker from the rest of the network. ARP Scans also use the SSH module to discover information about guests. The IDS has been tested in both virtual and real environments. The results show that the developed detection methods work and the IDS can stop the attack in a reasonable time. ARP Scanning was also tested and was able to detect new guests on average in the first pass. The effect of IDS on communication was also monitored and found to be minimal.
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Learning the Face Behind a Voice
Krušina, Josef ; Matějka, Pavel (referee) ; Plchot, Oldřich (advisor)
This work addresses the problem of mapping fixed representations (embeddings) of a speech signal to face embeddings and then generating a face from the mapped embedding using a generative adversarial network (GAN) that was trained for face generation. GANs are a type of neural networks that can generate data similar to the data they were trained on. The architecture of the proposed system is based on four components: a face embedding extractor, a voice embedding extractor, an algorithm on top of a GAN that can generate a face from a face embedding, and my mapping network used to map a voice embedding to a face embedding. The pre-trained neural networks FaceNet and SpeechBrain are adopted as embedding extractors. A model that uses a pre-trained StyleGAN2 is adopted for backward face generation. The contribution of this work is that it allows the extrapolation of a face from audio signal only.
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Control of underwater exploring robot
Válek, Zdeněk ; Hadaš, Zdeněk (referee) ; Houška, Pavel (advisor)
This diploma thesis is dealing with design of explorative robot named Gloin, which is designed especially for the exploration and mapping of the underwater part of Hranická propast, which is the second deepest fresh-water abbys in the world. This thesis is concentrating on design of algorithms needed for control and navigation of robot in the abyss. The designed algorithms are verified by simulation.
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Environment mapping
Juriga, Jakub ; Pavlík, Jan (referee) ; Bilík, Martin (advisor)
This bachelor thesis deals with various possibilities and methods that are available for studying especially of underwater environment. After comparing of the various methods, it is focused mainly on sonars and echolots from their history through their artition by type / kind of broadcast signal, kind of ray and possibilities of the resulting image display, to the different methods of reading of the image and the ability to analyze it properly. In the next part thesis, the attention is dedicated to the application of these technologies in different detection systems, due to the correct understanding of the detection, the principle of operation of the input signal and the gradual transfer to the resulting image suitable for further processing are described. In the conclusion, the already used distinguishing methods are described and also their potential future use.
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Creation of thematic map of Veveří locality
Raclavský, David ; Vondrák, Jiří (referee) ; Kalvoda, Petr (advisor)
The result of the bachelor thesis is a tematic map of Veveří location located in the city Brno district of Brno-center, which will be used for teaching purposes for the Faculty of Civil Engineering BUT. The map surveyed and produced accordance with ČSN 01 3410 [5] and ČSN 01 3411[9]. Detailed surveying was performed by tacheometry method.
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Documentation of Skalní zámek passage in Býčí skála cave - southern part
Kubíčková, Alena ; Hanzl, Vlastimil (referee) ; Kratochvíl, Radim (advisor)
This bachelor thesis deals with speleological mapping of a part of the cave system Býčí skála in the Moravian Karst. The part that has been mapped is called Skalní zámek. For the purpose of this work documentation was processed for the southern part of the Skalní zámek. The existing graphic materials of the interest site were searched for and described. For processing purposes, available numerical data were also found, which were compared with the new measurement during processing. The polygon of Skalní zámek was measured by mining suspension compasses. For detailed measurements, a combination of the modified DistoX2 - laser distance range-finder and TopoDroid - software application per the appropriate tablet, was used. The results of the measurements were processed in an a free and open-source cave surveying software - Therion. In this program a ground plan of the Skalní zámek, a longitudinal section of the main hallway and a longitudinal section of the branching hallway was prepared. At the end of this work the symbol lists used by TopoDroid and Therion were compared with the official UIS symbol list
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Documentation of Skalní zámek passage in Býčí skála cave - northern part
Langar, Tomáš ; Weigel, Josef (referee) ; Kratochvíl, Radim (advisor)
My bachelor thesis deals with speological mapping parts of cave system Býčí skála - Skalní zámek. Detailed measurements of plan view map are carried out with electronic method –through combination of measuring equipment DistaX2 and software application TopoDroid per the appropriate tablet. The resulting map is formed in the program Therion. The course of my bachelor thesis involves handling of apparatus and the instruction how to measure then process the data. The introductory part is devoted to the localization and extent of the thesis. The instructions of used surveying and software device are described in the subsequent parts. The final section is related to comparisons of mining suspension compasses.
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