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3D Reconstruction of Historic Landmarks from Flickr Pictures
Šimetka, Vojtěch ; Maršík, Lukáš (referee) ; Polok, Lukáš (advisor)
Tato práce popisuje problematiku návrhu a vývoje aplikace pro rekonstrukci 3D modelů z 2D obrazových dat, označované jako bundle adjustment. Práce analyzuje proces 3D rekonstrukce a důkladně popisuje jednotlivé kroky. Prvním z kroků je automatizované získání obrazové sady z internetu. Je představena sada skriptů pro hromadné stahování obrázků ze služeb Flickr a Google Images a shrnuty požadavky na tyto obrázky pro co nejlepší 3D rekonstrukci. Práce dále popisuje různé detektory, extraktory a párovací algoritmy klíčových bodů v obraze s cílem najít nejvhodnější kombinaci pro rekonstrukci budov. Poté je vysvětlen proces rekonstrukce 3D struktury, její optimalizace a jak je tato problematika realizovaná v našem programu. Závěr práce testuje výsledky získané z implementovaného programu pro několik různých datových sad a porovnává je s výsledky ostatních podobných programů, představených v úvodu práce.
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People Detection Using Radar
Bartko, Jakub ; Zemčík, Pavel (referee) ; Maršík, Lukáš (advisor)
Cieľom tejto práce je výzkum použiteľnosti techník hlbokého učenia na mračnách bodov generovaných radarmi, ktoré operujú v pásme milimetrových vĺn; na účely porozumenia 3D scénam a rozpoznávania osôb. Radar je systém, ktorý využíva rádiové vlny na získavanie informácií o vzdiaľenosti a smere k objektu a o jeho rýchlosti. Na základe týchto dát je možné určiť pozíciu každého detekovaného bodu v priestore. Množina takýchto bodov sa nazýva mračno bodov. Hlboké neurónové siete navrhnuté na prácu s riedkymi mračnami bodov v 3D môžu byť natrénované na segmentáciu radarových mračien, detekciu a klasifikáciu objektov a sledovanie ich pohybu v priestore. Systémy, ktoré sú na nich postavené, môžu predstavovať veľký pokrok v oblasti interpretácie 3D scén autonómnymi strojmi. V rámci tejto práce bol model budujúci na súčasnom stave techniky natrénovaný na detekciu a klasifikáciu objektov a osôb, na základe radarových mračien bodov v 3D. Na ukážku robustnosti natrénovaného modelu a priamočiarosti jeho zapojenia na riešenie významných úloh z reálneho sveta, bola implementovaná aplikácia na počítanie a klasifiká ciu ľudí. Presnosť využitých metód aj výsledného systému bola dôkladne vyhodnotená na súbore dát vytvorenom v rámci tejto práce z radarových mračien bodov, ktorý pozostáva z viac, než 19 500 anotovaných objektov.
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Speed Measurement Using Radar
Andrla, Jiří ; Široký, Adam (referee) ; Maršík, Lukáš (advisor)
The principal goal of this bachelor thesis is to design a program in the Matlab programming language that measures the speed of vehicles scanned by a radar. In this thesis, the program is also implemented in the C++ programming language. The designed software detects moving vehicles in sets of data obtained from a CW radar. For each of these vehicles, their speed is computed with respect to the angle of their motion to the orientation of the measuring device. In the end, overall statistics are generated from the data gained. The thesis solves the problems of correction of the speed measurement based on the measuring angle. This technique should provide better results than other classical methods without the correction. The outcome of this thesis can be interesting for every application or system that uses speed measurement with a radar under different angles.
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Presentation of Web API Data in Windows 8 Application
Kalus, Jiří ; Maršík, Lukáš (referee) ; Milička, Martin (advisor)
The aim of this bachelor's thesis is to design and implement a Windows 8 application that can provide data from web API. Transferred data are sensitive for the user with an emphasis for authorization and security. Data is displayed in real time. The thesis decribes possibilities for development of the application for WinRT architecture, communication of the application with web API, authorization and security of transffered and offline data. The application of dashboard type was created that display data from various financial categories. For the visualization basic graphic components were used, some of them includes animations.
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Radar Altimeter for Ultramicro Airplanes
Imrich, Marek ; Maršík, Lukáš (referee) ; Zemčík, Pavel (advisor)
Radar equipment is an integral part of the aviation sector. It is very important to use a suitable module to guide ultralight aircraft during landing. The bachelor thesis is focused on the use of altitude radar based on the microwave sensor IWR6843ISK manufactured by TEXAS Instruments and its application in practice for ultralight aircraft. Its ability in conjunction with a computer is the altitude guidance of an ultralight aircraft to the runway by generating sound tones to indicate to the pilot the distance above the terrain. The main goal of this work is to design a model for the use of a microwave module in conjunction with a computer and its subsequent testing of the suitability for use in performing a landing maneuver. The aim of this work is to design a system that works with millimeter radar and its evaluation of usability in practice. The proposed module generates point clouds, which are then parsed, then the output data are suitably correlated, further transformed to the exact height of the aircraft above the terrain with subsequent sound interpretation to the pilot.
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Particle Systems
Bedecs, Jakub ; Maršík, Lukáš (referee) ; Kajan, Rudolf (advisor)
This bachelor's thesis deals with the implementation of particle systems with the usage of calculation power of GPU. The purpose of this work is to describe all important facts about the particle systems construction and to show up various possibilities of its usage. It analysis the abilities of modern shaders and their usage for calculation of particles movement. The basis of this work is the analysis of the implemented application, which is able to dynamically change all parameters of the system.
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HDR Image Composition from Multiple Images
Raszka, Aleš ; Maršík, Lukáš (referee) ; Musil, Martin (advisor)
Bachelor thesis deals with the problems of the low dynamic range of today's cameras. This problem is solved by composing multiple images with different exposures into the final HDR image. The thesis also includes performances next part of the process, which is tone mapping. The issue is packed into the resulting library in C ++ that can create HDR image.
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Braille Reader
Mezírka, Martin ; Šolony, Marek (referee) ; Maršík, Lukáš (advisor)
This bachelor's thesis concern with problem transforms Braille's documents into text form. At first focus on Braille alphabet and principle of the scanners. Next is represent design of potential method of recognition Braille's documents. At the end is situated description of program's implementation with used library OpenCV and Qt framework. Conclusion discusses reliability and some program's extensions.
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Radar-Based Speed Measurement for Sport Events
Radoš, Daniel ; Polok, Lukáš (referee) ; Maršík, Lukáš (advisor)
The Bachelor thesis is dedicated to speed measurement focused on sport events. In introduction of this thesis, basic principles of radar and their dividing are mentioned. Following part of thesis is dedicated to continuous wave radar, using Doppler effect and also principle of sequential signal processing, followed by resultant speed calculation of measured object. Ultimately, selected methods are implemented and tested using real data. In the end, the implemented application is evaluated and the possible continuation of this work is stated.
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